78+ free tools
The free toolkit for
developers & designers
Format, convert, generate and validate. Every tool works instantly in your browser — no signup, no uploads, nothing sent to a server.
78+Free Tools
3Categories
100%In Your Browser
Dev Tools
Developer Tools
52 toolsJSON Tools
Beautify
JSON Formatter
Beautify and format JSON with indent control, key sorting and null removal.
→Minify
JSON Minifier
Minify JSON by removing whitespace and comments. See exact byte savings.
→Validate
JSON Validator
Validate JSON syntax and get a structural summary — keys, depth, size.
→Reference
JSON Viewer
Explore JSON as an interactive tree. Expand, collapse and search nodes.
→Convert
JSON to YAML
Convert JSON to YAML format. Instant, browser-only conversion.
→Convert
JSON to SQL
Convert a JSON array to SQL INSERT statements. Choose table name and dialect.
→Convert
JSON to CSV Converter
Convert JSON arrays to CSV. Choose delimiter, flatten nested objects, download.
→Convert
JSON to XML Converter
Convert JSON to well-formed XML with custom root element and indentation.
→Validate
JSON Diff
Compare two JSON objects side-by-side. Highlight added, removed and changed keys.
→JavaScript Tools
Format
JavaScript Formatter
Beautify JavaScript and JSX with Prettier. Control indent, quotes, semicolons and more.
→Minify
JavaScript Minifier
Minify JavaScript for production. Compress variables and remove dead code with Terser.
→Format
TypeScript Formatter
Format TypeScript and TSX with Prettier. Consistent style for all your TS files.
→Minify
TypeScript Minifier
Minify TypeScript for production. Strip types and compress with Terser.
→Validate
Regex Tester
Test regular expressions with live match highlighting and flag controls.
→SQL Tools
Format
SQL Formatter
Beautify SQL queries. Format messy SELECT statements into readable code.
→Format
SQL Beautifier
Beautify SQL queries with consistent indentation and keyword casing.
→Minify
SQL Minifier
Minify SQL by removing comments and whitespace for compact queries.
→Format
MySQL Formatter
Format MySQL-flavored SQL with MySQL-specific syntax support.
→Format
PostgreSQL Formatter
Format PostgreSQL queries including CTEs, window functions and JSON operators.
→HTML Tools
Format
HTML Formatter
Beautify and format HTML. Clean up messy or minified markup with proper indentation.
→Validate
HTML Validator
Validate HTML against W3C standards. Catch errors, missing attributes and bad nesting.
→Minify
HTML Minifier
Minify HTML for production. Remove whitespace, comments and optional tags.
→CSS Tools
Format
CSS Formatter
Beautify CSS with custom indentation, property sorting, vendor prefixes and more.
→Minify
CSS Minifier
Minify CSS for production. Remove whitespace, comments and redundant rules.
→Validate
CSS Validator
Validate CSS syntax in your browser. Catch unclosed braces, bad properties and missing semicolons.
→Format
SCSS Formatter
Format and beautify SCSS files. Fix nesting, indentation and property order.
→Minify
SCSS Minifier
Minify SCSS for production. Strip whitespace and comments from SCSS files.
→Format
Less Formatter
Format and beautify Less CSS files with proper indentation and property sorting.
→Minify
Less Minifier
Minify Less CSS for production. Remove whitespace and comments.
→Convert
CSS to SCSS
Convert CSS to SCSS. Extracts repeated colors as $variables automatically.
→Convert
CSS to SASS
Convert CSS to SASS indented syntax. Removes braces and semicolons automatically.
→Convert
SCSS to CSS
Convert SCSS to plain CSS. Expands nesting, $variables and & parent references.
→Convert
SASS to CSS
Convert SASS indented syntax to plain CSS. Handles nesting, variables and & references.
→Security & Token Tools
Generate
JWT Generator
Generate signed JWT tokens with custom claims, algorithm and secret.
→ValidateConvert
JWT Decoder
Decode and inspect JWT tokens. View header, payload and expiry at a glance.
→Generate
Hash Generator
Generate MD5, SHA-1, SHA-256 and SHA-512 hashes from any input string.
→Generate
Password Generator
Generate strong, secure passwords with custom length and character rules.
→Generate
UUID Generator
Generate v1 and v4 UUIDs. Bulk mode for generating multiple at once.
→Encoding & Conversion
Convert
Base64 Encoder / Decoder
Encode and decode Base64 strings instantly. Supports text and file input.
→Convert
URL Encoder / Decoder
Encode and decode URL strings. Handle special characters for safe URLs.
→Convert
Hex to Text Converter
Convert hexadecimal values to readable text and back instantly.
→Convert
Text to Hex Converter
Convert plain text to hexadecimal representation for encoding and debugging.
→Convert
Binary / Decimal Converter
Convert between binary, decimal, octal and hexadecimal number systems.
→Convert
Number Base Converter
Convert numbers between binary, octal, decimal and hexadecimal.
→Date & Time Tools
Convert
Unix Timestamp Converter
Convert between Unix timestamps and human-readable date formats.
→Convert
Epoch to Date Converter
Convert epoch milliseconds to a readable date and time in any timezone.
→Reference
Date Difference Calculator
Calculate the exact difference between two dates in days, weeks, months and years.
→Data Comparison
API & HTTP Tools
Reference
HTTP Status Codes
Searchable reference for all HTTP status codes with descriptions and use cases.
→Convert
Curl → Fetch / Axios
Convert curl commands to JavaScript fetch() or axios() code instantly.
→Convert
Curl → Axios Converter
Convert curl commands directly to axios() calls with headers and body.
→Design Tools
Designer Tools
20 toolsColor Tools
Convert
HEX to RGB Converter
Convert HEX color codes to RGB instantly. Real-time preview and one-click copy.
→Convert
RGB to HEX Converter
Convert RGB or RGBA colors to HEX instantly. Real-time preview and one-click copy.
→Generate
Color Picker
Pick any color visually to get HEX, RGB, and HSL values. Manual HEX and RGB input supported. One-click copy.
→Generate
Color Gradient Generator
Generate perfectly blended color scales and intermediate gradient stops between two colors.
→Validate
Contrast Checker
Check color contrast ratios for WCAG AA and AAA accessibility compliance.
→CSS Generators
Generate
Box Shadow Generator
Build multi-layer CSS box shadows. Per-layer controls, presets, and instant preview.
→Generate
Border Radius Generator
Generate custom border-radius with per-corner controls and live preview.
→Generate
CSS Gradient Generator
Create linear, radial and conic gradients. Live preview with 10 presets and CSS output.
→CSS Unit Converter
Convert
px ↔ rem Converter
Convert between px and rem units. Set a custom base font size.
→Convert
px ↔ em Converter
Convert between px and em units. Set a custom parent font size.
→Convert
px ↔ % Converter
Convert between pixel values and percentage based on a container width.
→Convert
px ↔ vw / vh Converter
Convert pixel dimensions to viewport units (vw / vh) and back.
→Convert
rem ↔ em Converter
Convert between rem and em units. Understand the cascade differences.
→Image Tools
Minify
Image Compressor
Compress JPEG, PNG and WebP images in the browser. No uploads needed.
→Convert
PNG to JPG Converter
Convert PNG images to JPG with a custom quality setting. Instant download.
→Convert
JPG to PNG Converter
Convert JPG images to PNG with transparency support. Instant download.
→Convert
WebP Converter
Convert images to and from WebP format for modern browser delivery.
→Convert
SVG to PNG Converter
Convert SVG vectors to PNG at any resolution. Supports custom dimensions.
→Convert
Image Resizer
Resize images to exact dimensions or by percentage. Maintain aspect ratio.
→Text Tools
Text & Content Tools
6 toolsText Utilities
Reference
Word & Character Counter
Count words, characters, sentences and paragraphs. Estimate reading time.
→Convert
Text Case Converter
Convert text to UPPER, lower, Title, camelCase, snake_case, kebab-case and more.
→Generate
Lorem Ipsum Generator
Generate placeholder text in paragraphs, sentences or words. Multiple styles.
→ConvertGenerate
Slug / URL Generator
Convert any text to a clean URL-friendly slug. Handle special characters and spaces.
→Format
Duplicate Line Remover
Remove duplicate lines from any text. Keep order or sort alphabetically.
→Format
Text Sorter
Sort lines alphabetically, numerically, by length or randomly. Reverse support.
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