Free Developer Tools That Respect Your Privacy
Format, encode, decode, test, and validate - all in your browser. No data ever leaves your machine.
All Developer Tools (18)
JSON Formatter
Format, validate and beautify your JSON data instantly. Supports syntax highlighting, error detection, and minification. Free online tool - no signup required.
Base64 Encoder/Decoder
Encode text to Base64 or decode Base64 to text instantly. Supports UTF-8. Free online Base64 encoder and decoder - no signup required.
Regex Tester
Test regular expressions with real-time highlighting, match details, and capture groups. Free online regex tester - no signup required.
Color Picker
Pick colors and convert between HEX, RGB, and HSL formats instantly. Free online color picker with visual preview - no signup required.
UUID Generator
Generate random UUID v4 identifiers instantly. Bulk generation, uppercase, and hyphen options. Free UUID generator - no signup required.
MD5 Hash Generator
Generate MD5 hashes from any text instantly. Free online MD5 hash generator with one-click copy - no signup required.
URL Encoder/Decoder
Encode and decode URLs and query parameters instantly. Supports encodeURIComponent and encodeURI. Free online URL encoder/decoder.
SHA-256 Generator
Generate SHA-256 hashes from any text using the Web Crypto API. Free online SHA-256 hash generator - no signup required.
CSS Gradient Generator
Create beautiful CSS gradients with a visual editor. Supports linear, radial, and conic gradients. Copy CSS code instantly. Free online tool.
Timestamp Converter
Convert between Unix timestamps and human-readable dates. Live current timestamp, ISO 8601, and UTC formats. Free online timestamp converter.
HEX to RGB Converter
Convert HEX color codes to RGB and HSL values instantly. Free color converter with live preview, color picker, and one-click copy. Works both ways.
Markdown to HTML
Convert Markdown to clean HTML code instantly. Free Markdown to HTML converter with live preview, syntax highlighting, and one-click copy. No signup required.
CSS Minifier
Minify CSS code instantly to reduce file size and improve page speed. Free CSS minifier that removes comments, whitespace, and redundant code. One-click copy.
JavaScript Minifier
Minify JavaScript code to reduce file size and boost page speed. Free JS minifier that strips comments and whitespace. One-click copy for production use.
HTML Minifier
Minify HTML code to reduce page size and improve load times. Free HTML minifier removes comments, whitespace, and redundant tags. Copy minified HTML instantly.
Password Generator
Generate strong, random passwords instantly. Customize length, symbols, numbers, and case. Free secure password generator - no data stored.
QR Code Generator
Generate QR codes for URLs, text, and more. Customize colors and size. Download as PNG. Free online QR code generator - no signup required.
Lorem Ipsum Generator
Generate lorem ipsum placeholder text in paragraphs, sentences, or words. Free dummy text generator for web design, mockups, and prototyping. Copy with one click.
Why Developers Choose Us
100% Private
All tools run in your browser. Your code, data, and content never touch our servers.
Lightning Fast
No waiting for server responses. Calculations happen instantly in your browser.
Works Offline
Once loaded, most tools work without internet. Perfect for working on the go.
Frequently Asked Questions
Are these developer tools really free?
Yes, completely free with no hidden limits. We're ad-supported, which keeps everything free for you.
Do I need to create an account?
No signup required for any tool. Just open and use immediately.
Can I use these tools on mobile?
Yes, all tools are fully responsive and work on phones, tablets, and desktops.