Free Online Tools for Everyday Tasks
Fast, private, and free. No sign-up required. All tools run in your browser - your data never leaves your device.
Unit Converter
Convert between units of length, weight, temperature, volume, speed, and more.
URL Encoder / Decoder
Encode or decode URLs and query strings. Converts special characters to percent-encoded format.
Unix Timestamp Converter
Convert Unix timestamps to human-readable dates and vice versa. Seconds and milliseconds.
Case Converter
Convert text between UPPERCASE, lowercase, Title Case, camelCase, snake_case, kebab-case, and more.
Screen & Device Info
Check your screen resolution, viewport size, pixel ratio, and device capabilities in real-time.
Text to Binary Translator
Convert text to binary code and binary back to text. Also shows hex, octal, and decimal representations.
Roman Numeral Converter
Convert between decimal numbers and Roman numerals. Bidirectional conversion with validation. Supports 1-3999 (I-MMMCMXCIX).
Morse Code Translator
Convert text to Morse code and Morse code back to text. Visual dot-dash display. Supports letters, numbers, and punctuation.
Temperature Converter
Convert between Celsius, Fahrenheit, Kelvin, and Rankine instantly. Reference table with common temperatures and conversion formulas.
Cooking Converter
Convert between cooking measurements: cups, tablespoons, teaspoons, ml, liters, grams, ounces, and oven temperatures. Quick reference chart included.
Shoe Size Converter
Convert shoe sizes between US, UK, EU, and cm. Charts for men, women, and kids. Find your size by foot length measurement.
Byte Converter
Convert between data size units: bits, bytes, KB, MB, GB, TB, PB, and binary units (KiB, MiB, GiB).
JSON to CSV Converter
Convert JSON arrays to CSV and CSV back to JSON. Handles nested objects, custom delimiters, and quoted fields.
Number to Words
Convert numbers to their English word equivalent. Supports cardinal, ordinal, and currency modes with decimals.
Area Converter
Convert between square meters, square feet, acres, hectares, square yards, and more area units instantly.
Pressure Converter
Convert between PSI, bar, Pascal, atmosphere, torr, and other pressure units. Instant results for all units.
Weight Converter
Convert between kilograms, pounds, ounces, stones, grams, and more weight units. Quick and accurate.
Energy Converter
Convert between joules, calories, kilowatt-hours, BTU, electronvolts, and more energy units instantly.
Speed Converter
Convert between km/h, mph, m/s, knots, Mach, and more speed units. Instant and accurate results.
Volume Converter
Convert between liters, gallons, cups, milliliters, fluid ounces, tablespoons, and more volume units.
Data Rate Converter
Convert between data transfer rate units: Mbps, Gbps, KB/s, MB/s, and more. Includes download time estimates and common speed presets.
Binary to Text Converter
Convert binary strings to readable text and back. Supports ASCII, UTF-8, and multiple encoding formats.
HTML to Text Converter
Strip HTML tags and extract clean plain text. Preserves links, handles nested elements, and respects whitespace.
Text to CSV Converter
Convert tab-separated, space-separated, or pipe-delimited text into properly formatted CSV. Auto-detects delimiters with download support.
QR Code Generator
Generate QR codes for URLs, text, Wi-Fi, email, and more. Download as PNG.
Password Generator
Generate strong, random passwords. Customizable length, character types, entropy calculation. Strength meter and crack time estimate. Batch generation support.
Lorem Ipsum Generator
Generate placeholder text for designs and mockups. Customize paragraphs, sentences, or word count.
Hash Generator
Generate SHA-1, SHA-256, SHA-384, and SHA-512 hashes. Compare hashes to verify integrity.
Invoice Generator
Create professional invoices in seconds. Add line items, tax, and download as PDF.
Random Number Generator
Generate random numbers in any range. Roll dice (D4 to D100) or flip a coin. Unique mode available.
UUID Generator
Generate random UUID v4 identifiers in bulk. Options for uppercase and no-dash format.
Privacy Policy Generator
Generate a free privacy policy for your website. Customize for GDPR, CCPA, cookies, analytics, and more. Download as Markdown.
Flip a Coin
Flip a virtual coin online. Fair 50/50 random coin toss with animation, statistics, and multi-flip mode.
Hashtag Generator
Generate relevant hashtags for Instagram, TikTok, Twitter, LinkedIn, and YouTube. Category presets and keyword-based generation.
Barcode Generator
Generate barcodes in Code128, EAN-13, UPC-A, Code39, ITF-14, and more. Download as PNG or SVG.
Dice Roller
Roll virtual dice with custom sides (d4, d6, d8, d10, d12, d20, d100). Roll multiple dice, view history, and get statistics.
Favicon Generator
Create favicons from emoji or text with custom colors, sizes, and border radius. Download for web, iOS, Android, and PWA.
QR Code Generator
Generate QR codes for text, URLs, WiFi, email, phone numbers, and vCards. Custom colors, download as PNG or SVG. Free, no signup.
Text to Handwriting
Convert typed text into handwriting images. Multiple styles, ink colors, and paper types. Download as PNG.
Email Signature Generator
Create professional HTML email signatures with your name, title, company, and social links. Copy and paste into Gmail, Outlook, or any email client.
Business Name Generator
Generate creative, brandable business names based on your keyword, industry, and style. Save favorites and check domain availability.
WiFi QR Code Generator
Generate QR codes for WiFi networks. Guests scan to connect instantly. Supports WPA, WPA2, WEP, and open networks.
Percentage Calculator
Calculate percentages, percentage change, and find what percent one number is of another.
BMI Calculator
Calculate your Body Mass Index (BMI) with metric and imperial units.
Tip Calculator
Calculate tips and split bills between multiple people easily.
Loan & Mortgage Calculator
Calculate monthly payments, total interest, and see a full amortization schedule for any loan.
Age Calculator
Calculate your exact age in years, months, days, hours, and minutes from your date of birth.
Date Calculator
Calculate the number of days between two dates, or add and subtract days from any date.
Discount Calculator
Calculate sale prices, discounts, and savings. Enter original price and discount percentage or amount to find the final price.
Calorie Calculator
Calculate your daily calorie needs based on age, weight, height, activity level, and fitness goals. Uses the Mifflin-St Jeor equation.
Scientific Calculator
Full-featured scientific calculator with trigonometry, logarithms, factorials, memory functions, and calculation history.
GPA Calculator
Calculate your GPA on a 4.0 scale. Add courses with grades and credits. Supports semester and cumulative GPA.
Body Fat Calculator
Estimate body fat percentage using the US Navy method or BMI formula. Get body composition category and lean mass.
Average Calculator
Calculate mean, median, mode, standard deviation, variance, range, quartiles, and more from a set of numbers.
BMR Calculator
Calculate your Basal Metabolic Rate (BMR) and Total Daily Energy Expenditure (TDEE). Mifflin-St Jeor, Harris-Benedict, and Katch-McArdle formulas.
Ideal Weight Calculator
Calculate your ideal body weight using 5 scientific formulas: Robinson, Miller, Devine, Hamwi, and BMI-based methods.
Sleep Calculator
Calculate the best times to sleep and wake up based on 90-minute sleep cycles. Wake up between cycles feeling refreshed instead of groggy.
Pregnancy Due Date Calculator
Calculate your estimated due date from last period, conception, or IVF transfer. Track pregnancy milestones week by week with trimester progress.
Water Intake Calculator
Calculate your daily water intake based on weight, activity, and climate. Track glasses with a visual progress tracker.
Fraction Calculator
Add, subtract, multiply, and divide fractions and mixed numbers. Simplifies results automatically with decimal equivalents.
Quadratic Equation Solver
Solve ax² + bx + c = 0 with step-by-step solutions. Find real and complex roots, discriminant, and vertex. Shows the quadratic formula in action.
Blood Alcohol Calculator (BAC)
Estimate blood alcohol content based on drinks, weight, gender, and time. Uses the Widmark formula. For educational purposes only.
Standard Deviation Calculator
Calculate standard deviation, variance, mean, median, min, max, and range from any dataset. Step-by-step breakdown with population and sample SD.
Pace Calculator
Calculate running or cycling pace, finish time, or distance. Supports km and miles with race split tables for 5K, 10K, half marathon, and marathon.
Grade Calculator
Calculate your weighted grade average with letter grade and GPA. What-if analysis shows what you need on your final exam.
Probability Calculator
Calculate probability, combinations (nCr), permutations (nPr), coin flip odds, and dice roll probabilities.
Ratio Calculator
Solve proportions, simplify ratios, and scale dimensions. Find missing values in A:B = C:D.
Macro Calculator
Calculate daily protein, carbs, and fat needs based on your body, activity level, and fitness goals using the Mifflin-St Jeor equation.
Heart Rate Zone Calculator
Calculate your training heart rate zones for fat burn, cardio, and peak performance. Supports Max HR and Karvonen methods.
Matrix Calculator
Perform matrix operations: addition, subtraction, multiplication, transpose, determinant, inverse, and scalar multiplication.
Speed Calculator
Calculate speed, distance, or time from any two values. Supports km/h, mph, m/s, knots, and more.
Blood Pressure Checker
Check your blood pressure reading against standard categories. Get health insights based on systolic and diastolic values.
Protein Calculator
Calculate your daily protein intake based on body weight, activity level, and fitness goals. Get personalized recommendations.
World Population Clock
Watch the estimated world population grow in real-time. See births, deaths, and population by country.
Aspect Ratio Calculator
Calculate aspect ratios, resize dimensions proportionally, and find the perfect resolution for screens, images, and videos.
Unit Circle Explorer
Interactive unit circle with sine, cosine, and tangent visualizations. Click any angle to see exact values in degrees and radians.
Compound Interest Calculator
Calculate how your savings and investments grow over time with compound interest and monthly contributions.
Salary Calculator
Convert your salary between annual, monthly, bi-weekly, weekly, daily, and hourly rates.
Fuel Cost Calculator
Calculate fuel cost for any trip. Enter distance, fuel efficiency (MPG or L/100km), and gas price to estimate travel expenses.
Electricity Cost Calculator
Calculate electricity costs for any appliance. Enter wattage, hours of use, and rate to estimate daily, monthly, and yearly power bills.
ROI Calculator
Calculate return on investment (ROI), annualized returns, and payback period. Compare your investment against market benchmarks.
Mortgage Affordability Calculator
Find out how much house you can afford based on your income, debts, down payment, and interest rate. DTI analysis included.
Debt Payoff Calculator
Plan your debt-free journey with snowball and avalanche strategies. See payoff dates, total interest, and how extra payments accelerate progress.
Savings Goal Calculator
Plan your savings with a clear target. Calculate monthly deposits needed or time to reach your goal with compound interest.
Inflation Calculator
Calculate the impact of inflation on purchasing power over time. See future costs or equivalent past values with year-by-year breakdown.
Bill Splitter
Split restaurant bills equally or by what each person ordered. Includes tip and tax calculations.
Retirement Calculator
Plan your retirement savings. See projected growth, sustainable income, and whether you are on track for your goals.
Currency Converter
Convert between 40+ world currencies including USD, EUR, GBP, SEK, and Bitcoin. Static rates with conversion history.
IBAN Validator
Validate International Bank Account Numbers (IBAN) from 80+ countries. Check format, length, checksum, and display bank details.
Investment Calculator
Calculate investment growth with compound interest, monthly contributions, and inflation adjustment. Visualize your wealth over time.
Net Worth Calculator
Track your net worth by listing assets and liabilities. Save snapshots to monitor your financial progress over time.
Unit Price Calculator
Compare prices per unit to find the best deal. Add multiple products and instantly see which option gives you the most value.
Meeting Cost Calculator
Calculate the real cost of meetings based on attendees, duration, and salaries. See how much your meetings cost per minute, per week, and per year.
Invoice Maker
Create professional invoices in your browser. Add line items, tax, discounts, and download as PDF. No signup required.
Profit Margin Calculator
Calculate gross profit margin, net profit margin, and markup percentage from cost and revenue. Visualize margins with interactive charts.
PayPal Fee Calculator
Calculate PayPal transaction fees and net amounts. Supports domestic, international, micropayments, and QR code rates.
Loan Amortization Schedule
Calculate detailed loan amortization schedules. See monthly payments, principal, interest breakdown, and total cost over time.
Investment Return Calculator
Calculate ROI, annualized returns, and total gains for any investment. Compare scenarios with different timeframes and amounts.
Compound Growth Calculator
Calculate compound growth for investments, savings, and business metrics. Visualize growth curves with monthly contribution support.
Break-Even Calculator
Calculate how many units you need to sell to cover costs. Find your break-even point for pricing and business planning.
Crypto Profit Calculator
Calculate potential profit or loss from cryptocurrency trades. Enter buy and sell prices, quantity, and fees.
Hourly Rate Calculator
Calculate your ideal hourly rate from annual salary, or convert hourly rate to annual income. Factor in hours, days, and weeks.
Stock Profit Calculator
Calculate stock trading profit or loss. Enter buy/sell prices, shares, and commission to see your total return and ROI.
VAT Calculator
Add or remove VAT from any amount. Supports custom VAT rates. See net price, VAT amount, and gross price instantly.
Fuel Cost Calculator
Calculate the fuel cost for any trip. Enter distance, fuel consumption, and gas price to estimate total expense.
Expense Tracker
Track your expenses and income with categories, charts, and export. All data stored locally in your browser.
Text Counter
Count words, characters, sentences, and paragraphs. Estimate reading time.
Markdown Preview
Write Markdown and see it rendered in real-time. Headers, bold, italic, code blocks, lists, and more.
Word Frequency Counter
Analyze text to find the most common words. Count word frequency, filter by length, exclude common words, and export as CSV.
Emoji Picker & Search
Search and copy emojis instantly. Browse by category, search by name or keyword, and click to copy to clipboard.
Readability Score Checker
Analyze text readability with Flesch Reading Ease, Flesch-Kincaid, Gunning Fog, Coleman-Liau, and ARI scores.
Text Replacer
Find and replace text with support for regex, case sensitivity, and bulk replacements. Preview changes before applying.
Lorem Ipsum Generator (Advanced)
Generate placeholder text in multiple styles: classic lorem ipsum, hipster, corporate, or pirate. Paragraphs, sentences, or words.
Character Map
Browse and copy Unicode characters, symbols, emoji, arrows, math symbols, and special characters.
Text to Speech
Convert text to speech using your browser. Choose from available voices, adjust speed and pitch, and listen instantly.
Whitespace Cleaner
Clean up messy text by removing extra spaces, blank lines, trailing whitespace, and converting tabs. Get a clean, consistent output instantly.
Text Summarizer
Summarize long text into key points using extractive summarization. Get the most important sentences from articles, essays, and documents.
Text Repeater
Repeat text, words, or emojis multiple times instantly. Custom separators, line numbers, and quick emoji buttons.
ASCII Art Generator
Convert text to ASCII art with multiple font styles. Preview different sizes, copy to clipboard. Great for code comments and READMEs.
Reading Time Calculator
Estimate how long it takes to read any text. Get word count, character count, and reading time instantly.
Character Counter
Count characters, words, sentences, paragraphs, and reading time. Check against Twitter, Instagram, LinkedIn, and SEO limits.
Citation Generator
Generate citations in APA 7th, MLA 9th, Chicago, Harvard, and IEEE formats. Supports books, journals, websites, and newspapers.
Text to Slug Converter
Convert any text into clean, URL-friendly slugs. Handles accents, special characters, custom separators, and bulk conversion.
Reading Speed Test
Measure your reading speed in words per minute. Read curated passages and get your WPM score with performance rating and historical tracking.
Text Diff Checker
Compare two texts and highlight differences. See added, removed, and unchanged lines with line numbers, LCS algorithm, and copy support.
Emoji Picker
Browse and copy emojis by category. Search by name, click to copy to clipboard instantly. All standard Unicode emojis.
JSON Formatter
Format, validate, and minify JSON data with syntax highlighting.
Base64 Encoder / Decoder
Encode text to Base64 or decode Base64 strings back to plain text.
Regex Tester
Test and debug regular expressions in real-time. Matches highlighted, capture groups, replacements.
CSV to JSON Converter
Convert CSV data to JSON arrays and JSON arrays back to CSV. Custom delimiters supported.
Text Diff Checker
Compare two texts and see additions, removals, and unchanged lines highlighted side by side.
Image to Base64 Converter
Convert images to Base64 encoded strings and data URIs. Supports PNG, JPEG, GIF, WebP, and SVG. No upload, fully private.
Cron Expression Parser
Parse and understand cron expressions. See next run times and get a human-readable description of any cron schedule.
Number Base Converter
Convert numbers between binary, octal, decimal, and hexadecimal. Supports big numbers. Instant conversion with bit analysis.
HTML to Markdown Converter
Convert HTML code to clean Markdown. Supports headings, links, images, tables, lists, code blocks, and more.
Subnet Calculator
Calculate network address, broadcast address, host range, and wildcard mask for any IP address and CIDR notation.
What Is My IP Address
Find your public IP address instantly. See your location, ISP, timezone, and geolocation data. Look up any IP address.
CSS Box Shadow Generator
Create beautiful CSS box shadows with a visual editor. Multiple layers, presets, live preview, and one-click copy.
Meta Tag Generator
Generate HTML meta tags for SEO, Open Graph, and Twitter Cards. Preview search results and social media appearance.
PX to REM Converter
Convert pixels to rem and em units. Adjustable base font size, live preview, and quick reference table for common sizes.
SQL Formatter
Format, beautify, and minify SQL queries. Configurable indentation and keyword casing. Supports SELECT, INSERT, UPDATE, DELETE, CREATE.
JWT Decoder
Decode and inspect JSON Web Tokens (JWT). View header, payload, claims, and check expiration status. No data sent to any server.
YAML Formatter & Converter
Format YAML, convert YAML to JSON or JSON to YAML. Validate and beautify configuration files. 100% client-side.
CSS Minifier & Beautifier
Minify CSS to reduce file size or beautify compressed CSS for readability. Remove comments and whitespace. Shows savings percentage.
User Agent Parser
See your browser user agent string and detect browser, OS, device type, and engine. Analyze any user agent string.
Binary Calculator
Perform arithmetic and bitwise operations on binary numbers. Supports addition, subtraction, AND, OR, XOR, NOT, and bit shifts.
PPI Calculator
Calculate pixels per inch (PPI) for any screen. Compare device densities and find retina-quality displays.
HTML Beautifier
Format, indent, and beautify messy HTML code instantly. Supports minification too. Great for cleaning up HTML from any source.
Chmod Calculator
Calculate Linux file permissions in numeric (octal) and symbolic notation. Visual permission selector with common presets.
Email Validator
Validate email addresses for correct format, common typos, disposable domains, and RFC compliance. Bulk validation supported.
XML Formatter
Format, indent, and beautify XML code instantly. Minify XML to reduce file size. Validate XML structure.
JavaScript Beautifier
Format, indent, and beautify JavaScript code. Minify JS to reduce file size. Free online JavaScript formatter.
CSS Formatter
Format, indent, and beautify CSS code. Minify CSS to reduce file size. Free online CSS beautifier.
Crontab Generator
Visual cron expression builder. Generate crontab schedules with a simple UI. Preview next run times. Common presets included.
URL Parser
Parse URLs into components: protocol, host, port, path, query parameters, hash. Decode and encode URLs.
Markdown Table Generator
Create perfectly formatted Markdown tables with column alignment, live preview, and CSV import.
HTTP Status Codes
Complete reference for HTTP status codes from 100 to 511. Search, filter by category, and copy codes instantly.
Flexbox Playground
Interactive CSS Flexbox playground. Visualize flex-direction, justify-content, align-items, gap, and more with live code output.
Border Radius Generator
Generate CSS border-radius with visual preview. Supports individual corners, elliptical shapes, and fancy blob shapes.
JSON to YAML Converter
Convert between JSON and YAML formats instantly. Syntax validation, formatting options, and copy with one click.
CSS Grid Generator
Visually build CSS Grid layouts with custom columns, rows, gaps, and alignment. Preview your grid live and copy the generated CSS and HTML.
JSON to TypeScript
Convert JSON objects into TypeScript interfaces automatically. Supports nested objects, arrays, optional fields, and readonly properties.
Markdown to HTML
Convert Markdown text to clean HTML instantly. Supports headings, lists, links, images, code blocks, tables, and more.
HTML Entity Encoder / Decoder
Encode special characters to HTML entities or decode them back. Supports named, decimal, and hex entities.
JSON Validator
Validate JSON data with clear error messages. Auto-fix common issues, format, minify, and analyze your JSON structure.
URL Slug Generator
Convert text into SEO-friendly URL slugs. Handles special characters, diacritics, and multiple languages.
XML to JSON Converter
Convert XML data to JSON format instantly. Paste or upload XML and get clean, formatted JSON output. Handles nested elements, attributes, and text nodes.
JSON to XML Converter
Convert JSON data to well-formed XML. Handles nested objects, arrays, attributes, and custom root elements with proper indentation.
CSS Animation Generator
Create CSS keyframe animations visually. Preview, customize timing, easing, and export production-ready CSS code instantly.
Regex Builder
Build regular expressions visually with real-time matching, a cheat sheet, and common pattern library. No more guessing at regex syntax.
Encryption Tool
Encrypt and decrypt text with AES-256-GCM encryption. Password-protected, 100% client-side via Web Crypto API. No data sent to any server.
Keyboard Tester
Test every key on your keyboard with a visual layout. Press keys to verify they work. Detect stuck or broken keys instantly. Progress tracking included.
Code Diff Tool
Compare two blocks of text or code side by side. Highlights additions, deletions, and changes with color coding. Free online diff checker.
Robots.txt Generator
Generate robots.txt files for your website. Control search engine crawling with allow/disallow rules, sitemap references, and crawl-delay settings.
Schema Markup Generator
Generate JSON-LD structured data for SEO. Article, FAQ, Product, LocalBusiness, Event, Recipe, HowTo, and WebSite schema types.
CSS Gradient Generator
Create beautiful CSS gradients visually. Linear, radial, and conic gradients. Multiple color stops, presets, random generator. Copy CSS code instantly.
What's My IP
Find your public IP address instantly. See location, ISP, hostname, timezone. Look up any IP address. Free, no signup required.
CSS Clip-Path Generator
Create complex CSS clip-path shapes with draggable control points. Supports polygon, circle, ellipse, and inset with preset shapes.
JSON Path Finder
Paste JSON data and click any value to get its dot notation or bracket path. Visualize and navigate complex JSON tree structures.
Table Generator
Build tables visually with a spreadsheet-like editor. Export as HTML, Markdown, CSV, or JSON. Add rows, columns, sort, and auto-save.
Glassmorphism Generator
Create CSS glassmorphism effects with live preview. Adjust blur, opacity, saturation, and border for frosted glass UI.
HTML Live Editor
Write HTML, CSS, and JavaScript with instant live preview. Built-in code editor with auto-run and sandboxed output.
JSON Schema Generator
Generate JSON Schema from sample JSON data. Supports Draft-07 and Draft 2020-12 with automatic type inference.
SVG Optimizer
Optimize and minify SVG code. Remove metadata, comments, hidden elements, and shorten IDs for smaller file sizes.
README Generator
Generate professional README.md files for your GitHub projects. Templates for libraries, apps, and APIs with live Markdown preview.
cURL Converter
Convert cURL commands to Python, JavaScript, Go, PHP, Ruby, and more. Paste a curl command, get clean code instantly.
OG Image Preview
Preview how your website looks when shared on Twitter, Facebook, LinkedIn, and Discord. Debug Open Graph and Twitter Card meta tags.
.htaccess Generator
Generate Apache .htaccess rules for redirects, caching, security headers, CORS, and more. Copy production-ready configurations.
CSP Header Generator
Build Content Security Policy headers with an interactive builder. Select directives, sources, and copy the complete header.
Chmod Calculator
Calculate Unix file permissions visually. Convert between symbolic and octal notation. See owner, group, and other permissions.
SVG to CSS Background
Convert SVG code to a CSS background-image data URI. Encode SVGs for use in CSS without external files. URL-encode or Base64.
Gradient Border Generator
Create CSS gradient borders with live preview. Linear, conic, and radial gradients with animation option.
CSS Filter Generator
Generate CSS filter effects with live preview. Blur, brightness, contrast, grayscale, hue-rotate, saturate, sepia.
Font Size Converter
Convert between px, rem, em, pt, vw, and other CSS font size units. See live preview and comparison table.
Diff Checker
Compare two texts side by side and find differences instantly. Highlights additions, deletions, and changes with line numbers.
JSON Beautifier & Minifier
Format, minify, and validate JSON with customizable indentation, key sorting, tree view, and detailed statistics.
CSS Box Model Visualizer
Interactive CSS box model explorer. Adjust margin, border, padding, and content dimensions with live preview and generated CSS.
Hex Editor
View and edit file contents in hexadecimal. Drag and drop files, search hex patterns, and export modified data.
Crontab Guru
Visual cron expression editor with human-readable descriptions, next 5 run times, field-by-field editing, and common presets.
DNS Lookup
Query DNS records for any domain using Google DNS. Check A, AAAA, MX, TXT, CNAME, NS, and SOA records with copy and export.
SVG to React Component
Convert SVG code to React JSX components. Auto-renames attributes (stroke-width to strokeWidth), converts inline styles, supports TypeScript, memo, and forwardRef.
JSON Escape / Unescape
Escape special characters for JSON strings or unescape JSON-encoded strings. Handles newlines, tabs, quotes, and unicode.
CSS Variables Generator
Create CSS custom properties for design systems. Define colors, spacing, typography, and shadows. Export as CSS :root or SCSS variables.
JSON Diff
Compare two JSON objects side by side. Highlights additions, deletions, and changes with color-coded diff view.
Neumorphism Generator
Create soft UI neumorphism CSS effects with live preview. Adjust size, radius, distance, intensity, blur, and color for stunning soft shadows.
API Tester
Test REST APIs directly from your browser. Send GET, POST, PUT, PATCH, DELETE requests with custom headers and body. View responses with timing.
Cron Job Generator
Build cron expressions visually with an interactive editor. See next run times and human-readable descriptions. Presets for common schedules.
DNS Record Generator
Generate DNS records for your domain. Create A, AAAA, CNAME, MX, TXT, SRV, and other record types with proper syntax and validation.
Nginx Config Generator
Generate Nginx configuration files with a visual editor. Set up reverse proxy, SSL, caching, gzip, security headers, and rate limiting.
.htaccess Generator
Generate Apache .htaccess files with common rules. HTTPS redirect, security headers, GZIP compression, browser caching, and URL redirects.
Docker Compose Generator
Generate docker-compose.yml files visually. Add services, configure ports, volumes, and dependencies. Templates for common stacks like Node.js, WordPress, Nginx.
Git Command Generator
Find and copy any Git command. 40+ commands organized by category: basics, branches, merging, undo, stash, tags, and remote operations.
Text Encryptor
Encrypt and decrypt text with AES-256 encryption. Password-protected, runs entirely in your browser.
Color Picker & Converter
Pick colors and convert between HEX, RGB, and HSL formats instantly.
Color Palette Generator
Generate harmonious color palettes. Analogous, complementary, triadic, monochromatic, and random schemes.
CSS Gradient Generator
Create beautiful CSS gradients with a visual editor. Linear, radial, and conic gradients. Copy CSS code instantly.
Color Contrast Checker
Check foreground and background color contrast for WCAG 2.1 accessibility compliance. AA and AAA levels with fix suggestions.
Color Converter
Convert colors between HEX, RGB, HSL, and CMYK formats. Live preview with interactive sliders and one-click copy.
Color Blindness Simulator
Simulate how colors appear to people with color vision deficiency. Test designs for accessibility.
Color Name Finder
Find the closest CSS color name for any hex color. Browse all 148 named CSS colors with search and preview.
Image Color Picker
Upload any image and pick colors from it. Get HEX, RGB, and HSL values instantly. Build color palettes from your photos.
Interactive Color Wheel
Explore colors with an interactive HSL color wheel. Pick any hue, adjust saturation and lightness, and get HEX, RGB, and HSL values with automatic harmony generation.
Font Pair Generator
Discover beautiful Google Fonts pairings. Preview heading and body font combinations live, adjust sizes, and copy CSS import code instantly.
Color Mixer
Blend and mix colors together with adjustable weights. See results in HEX, RGB, and HSL with live gradient preview.
Gradient Text Generator
Create CSS gradient text effects with live preview. Choose presets, custom colors, angles, and optional animation.
Color Shade Generator
Generate tints, shades, and tones of any color. Create complete Tailwind CSS color scales. Copy individual values or full palette.
Color Temperature
Convert color temperature in Kelvin to RGB and HEX. Visualize warm to cool light from candle (1800K) to sky (15000K).
Color Gradient Picker
Create beautiful linear, radial, and conic CSS gradients with live preview. 16 presets, up to 6 color stops, save favorites.
Color Blindness Simulator
Upload images to see how they look through different types of color vision deficiency. Supports protanopia, deuteranopia, tritanopia, and achromatopsia with split-view comparison.
Color Blindness Checker
Test your color palette against 7 types of color vision deficiency. See how your chosen colors appear to people with protanopia, deuteranopia, tritanopia, and more.
Color Palette Extractor
Extract dominant colors from any image using median-cut quantization. Get a beautiful palette with hex codes for your designs.
Color Name Finder
Enter a hex code or pick a color to find its closest CSS named color. Browse and search all 148 CSS named colors with copy support.
Color Harmony Generator
Generate beautiful color harmonies from any base color. Complementary, analogous, triadic, split-complementary, tetradic, and monochromatic schemes.
Color Palette from Image
Extract dominant colors from any image. Upload a photo and get a color palette with hex codes, RGB values, and usage percentages.
Countdown Timer & Stopwatch
Set countdown timers with alarm or use the stopwatch with lap tracking.
Time Zone Converter
Convert time between time zones instantly. World clock showing current time in major cities. Calculate time differences.
Stopwatch
Precise online stopwatch with lap tracking, split times, and keyboard shortcuts. Millisecond accuracy.
World Clock
View current time across multiple time zones. Compare times, see UTC offsets, and track day/night status worldwide.
Alarm Clock
Set alarms with custom labels and sounds. Multiple alarms, repeat options, and browser notifications.
Meeting Planner
Find the best meeting time across multiple time zones. Perfect for remote teams and international calls.
Speech Timer
Time your presentations and speeches with visual pace indicators. Set a target duration, track words per minute, add sections, and get alerts when time is running low.
Work Hours Calculator
Calculate your total weekly work hours, overtime, and pay. Enter start and end times with breaks for each day to get a detailed breakdown.
Event Countdown
Create real-time countdowns to any date or event. Popular event presets, live ticking display, and shareable countdown text.
Time Duration Calculator
Calculate time between two dates or add/subtract hours, minutes, and seconds. Find duration in days, hours, and minutes.
Week Number Calculator
Find the ISO week number for any date. View full year calendar with week numbers and navigate between weeks.
Pomodoro Timer
Free Pomodoro timer with customizable focus and break intervals. Track sessions, audio alerts, stats dashboard. Boost productivity with the Pomodoro Technique.
Typing Speed Test
Test your typing speed and accuracy. Measure WPM (words per minute) with multiple difficulty levels and custom time limits.
Online Notepad
Free online notepad with auto-save. Write notes, to-do lists, or code snippets. Your data stays in your browser.
Todo List
Free online todo list with priorities, due dates, and categories. Stays in your browser - no account needed.
Habit Tracker
Track daily habits with streaks, statistics, and visual progress. Build better routines with data.
Decision Maker
Weighted decision matrix to help you make tough choices. Compare options with custom criteria and scoring.
Sticky Notes
Digital sticky notes with colors, pinning, search, and export. All data saved locally in your browser.
Eisenhower Matrix
Prioritize tasks using the Eisenhower Decision Matrix. Sort your to-dos by urgency and importance into four quadrants: Do, Schedule, Delegate, or Eliminate.
Daily Planner
Plan your day with a simple time-block planner. Assign tasks to each hour, color-code them by category, and check them off as you go.
Breathing Exercise
Guided breathing exercises with visual animations. Box breathing, 4-7-8, deep breathing, and more. Reduce stress and anxiety in minutes.
Screen Recorder
Record your screen, window, or browser tab online. No software needed. Pause/resume, audio support, quality settings. Download as WebM.
Noise Generator
Generate white, pink, or brown noise for focus, relaxation, and sleep. Volume control and auto-stop timer.
Flashcard Maker
Create and study flashcards with flip animation. Track correct and wrong answers. Cards saved in your browser.
Kanban Board
Free online Kanban board with drag-and-drop columns. Organize tasks, track progress, and manage projects. Data saved locally.
Resume Builder
Create a professional resume in minutes with modern, classic, or minimal templates. Customize colors and export as PDF.
Checklist Maker
Create custom checklists with categories, checkboxes, and print-ready layout. Save locally for later use.
Online Metronome
Precise Web Audio metronome with adjustable BPM, time signatures, accent patterns, and tap tempo. Visual beat indicator.
Online Whiteboard
Draw, sketch, and brainstorm on a free-form canvas. Multiple colors, brush sizes, shapes, and export to PNG.
Pomodoro Music Timer
Focus timer with built-in ambient sounds. Rain, cafe noise, white noise, brown noise, and wind to boost concentration during work sessions.
Image Resizer
Resize images in your browser. Supports PNG, JPEG, and WebP. No upload, fully private.
Aspect Ratio Calculator
Calculate width and height for any aspect ratio. Supports 16:9, 4:3, 21:9, 1:1 and custom ratios for video, photo, and design.
Image Compressor
Compress images in your browser. Reduce file size without losing quality. Supports JPEG, WebP, and PNG. No upload, fully private.
YouTube Thumbnail Downloader
Download YouTube video thumbnails in all resolutions. Max resolution, standard, high quality. Just paste a YouTube URL.
Image to ASCII Art
Convert images to ASCII art. Upload any image and get beautiful text-based art with adjustable resolution and character sets.
Placeholder Image Generator
Generate placeholder images with custom dimensions, colors, and text. Perfect for mockups and prototypes.
Image Cropper
Crop images directly in your browser. Drag to select the area, choose an aspect ratio, and download in PNG, JPEG, or WebP format.
SVG to PNG Converter
Convert SVG files to high-quality PNG images in your browser. Set custom dimensions, scale factor, and background color. No upload required.
Image Format Converter
Convert images between PNG, JPEG, and WebP formats in your browser. Adjust quality, compare file sizes. No data leaves your device.
Pixel Art Editor
Create pixel art in your browser with a grid-based editor. Custom canvas size, color palette, eraser, fill tool, and PNG export.
Image Watermark
Add text watermarks to your images. Customize position, opacity, rotation, font size, and color. Protect your photos.
Meme Generator
Create memes with top and bottom text. Impact font with outline, adjustable size and colors. Download or copy.
Image Rotate & Flip
Rotate images by any angle, flip horizontally or vertically, and download the result. Works entirely in your browser.
Screenshot Beautifier
Add beautiful backgrounds, padding, shadows, and rounded corners to your screenshots. Export stunning images for social media and presentations.
Image Metadata Viewer
View image properties including dimensions, file size, aspect ratio, megapixels, and orientation. Drag and drop support.
Image Pixelator & Blur
Pixelate or blur images for privacy, artistic effects, or censoring. Adjustable pixel size and blur radius. Download as PNG.
Aspect Ratio Resizer
Calculate new image dimensions while maintaining aspect ratio. Lock width or height. Presets for 16:9, 4:3, 1:1, social media, and video resolutions.
Drawing Canvas
Free online drawing canvas with brush tools, colors, shapes, layers and export to PNG/SVG.
Why ToolSpark?
Built for speed, privacy, and simplicity. Here's what sets us apart.
Instant Results
Everything runs in your browser. No server calls, no waiting, no bandwidth used.
Privacy by Design
Your data never leaves your device. No tracking, no logging, no data collection.
Beautiful & Intuitive
Every tool is carefully designed with animations, dark mode, and keyboard shortcuts.
Works Everywhere
Fully responsive on desktop, tablet, and mobile. Install as an app from your browser.
Actually Free
No hidden paywalls, no "premium" tiers, no sign-up required. Free means free.
100+ Tools
From calculators to code formatters, color tools to health trackers - all in one place.
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Frequently Asked Questions
Are these tools really free?
Yes, every tool on ToolSpark is completely free to use. No sign-up, no hidden fees, no premium tiers.
Is my data safe?
Absolutely. All tools run 100% in your browser using client-side JavaScript. Your data never leaves your device and is never sent to any server.
Do I need to create an account?
No account is needed. Just open any tool and start using it immediately. No sign-up, no email, no registration.
Can I use these tools on mobile?
Yes, all tools are fully responsive and work on phones, tablets, and desktops. They work in any modern browser.
How many tools are available?
ToolSpark currently offers 282 free online tools across 10 categories, including calculators, converters, generators, developer tools, and more. New tools are added regularly.
Can I install ToolSpark as an app?
Yes! ToolSpark is a Progressive Web App (PWA). On supported browsers, you can install it from the address bar or browser menu for quick access.
Can I suggest a new tool?
Absolutely! Scroll to the bottom of the homepage and click "Suggest a Tool" to submit your idea. We review all suggestions and build the best ones.