50 Free Dev Tools,
Fast & Private
All tools run entirely in your browser. Your data never leaves your device. No signup, no tracking, no BS.
Need a form backend?
Add form handling to any site in 30 seconds. No backend code.
Encoding & Decoding
JSON Formatter
Format, validate, and minify JSON with syntax highlighting.
Base64 Encoder / Decoder
Encode text or files to Base64, decode Base64 back to text.
URL Encoder / Decoder
Encode or decode URL components and query strings.
HTML Entity Encoder
Encode special characters to HTML entities or decode entities back to text.
String Escape / Unescape
Escape or unescape backslash characters and JSON strings.
Image to Base64 Converter
Convert images to Base64 data URIs for embedding in HTML/CSS.
SVG to CSS Converter
Convert SVG to CSS background-image data URI.
Generators
UUID Generator
Generate v4 UUIDs instantly. Bulk generate and copy with one click.
Cron Generator
Build cron expressions visually with human-readable descriptions.
Lorem Ipsum Generator
Generate placeholder text for mockups and designs.
Chmod Calculator
Visual Unix file permission calculator.
QR Code Generator
Generate QR codes from text or URLs.
URL Slug Generator
Convert titles to URL-safe slugs. Custom separators, stop word removal, batch mode.
Markdown Table Generator
Generate Markdown tables visually with an interactive editor.
Meta Tag Generator
Generate HTML meta tags for SEO and social sharing.
Twitter Card Preview
Preview and generate Twitter Card meta tags.
Security & Auth
Password Generator
Generate cryptographically secure random passwords.
Hash Generator
Generate SHA-1, SHA-256, SHA-384, and SHA-512 hashes from any text.
JWT Decoder
Decode and inspect JSON Web Tokens.
JWT Generator
Generate JSON Web Tokens with custom payload.
Regex Cheat Sheet
Complete regex syntax reference with examples.
Text & Code
Regex Tester
Test regular expressions with real-time match highlighting.
Text Diff Checker
Compare two texts line-by-line.
Markdown Preview
Write Markdown and preview the rendered output.
CSS Minifier / Beautifier
Minify CSS to reduce file size or beautify it.
SQL Formatter
Format SQL queries with keyword uppercasing.
Text Case Converter
Convert between camelCase, snake_case, kebab-case, and more.
Markdown to HTML
Convert Markdown to clean HTML source code.
HTML Prettifier
Format and indent messy HTML code for better readability.
HTML to JSX Converter
Convert HTML to JSX with className, camelCase styles, and self-closing tags.
JavaScript Minifier
Minify JavaScript code to reduce file size.
JSON Path Finder
Navigate JSON structure and find paths to any value.
JSON to TypeScript
Convert JSON to TypeScript interfaces automatically.
Text Counter
Count characters, words, sentences, and paragraphs.
Converters
Timestamp Converter
Convert Unix timestamps to human-readable dates.
Color Picker
Convert colors between HEX, RGB, and HSL.
Number Base Converter
Convert between binary, octal, decimal, hex, and any base.
YAML / JSON Converter
Convert between YAML and JSON formats.
Epoch Batch Converter
Batch convert Unix timestamps to dates.
IP Address Lookup
Look up geolocation, ISP, timezone for any IP.
CSS Unit Converter
Convert between px, em, rem, pt, %, and vw.
JSON to CSV Converter
Convert JSON arrays to CSV or CSV to JSON.
Aspect Ratio Calculator
Calculate and convert aspect ratios for images and videos.
Design & Reference
Placeholder Image Generator
Generate custom placeholder images with Canvas API.
HTTP Status Code Reference
Complete HTTP status code reference.
Tailwind CSS Color Generator
Generate full Tailwind CSS color palettes (50-950) from any base color.
Favicon Generator
Create letter-based favicons with custom colors. Download PNG in multiple sizes.
OG Image Preview
Preview how your page looks on Twitter, Facebook, and LinkedIn.
CSS Box Shadow Generator
Generate CSS box-shadow with visual controls and live preview.
CSS Gradient Generator
Create linear and radial CSS gradients with live preview.
Privacy First
All processing happens locally in your browser. Zero data sent to servers.
Instant Results
No loading screens, no API calls. Results appear as you type.
Always Free
No freemium, no paywalls. Every tool is 100% free forever.