Developer & Web Utilities
QR codes, encoders, converters, regex testing and everyday utilities for builders.
QR Code Generator
Create a QR code for any URL or text and download it as a PNG.
Barcode Generator
Generate EAN-13, UPC-A and Code 128 barcodes with real check-digit validation.
URL Encoder / Decoder
Percent-encode text for URLs, or decode an encoded URL back to plain text.
Base64 Encoder / Decoder
Convert text to base64 and back — Unicode-safe, in your browser.
UUID Generator
Generate one or a hundred random v4 UUIDs with one click.
Hash Generator
Compute SHA-1, SHA-256 and SHA-512 hashes of any text.
Regex Tester
Test regular expressions against sample text and inspect every match and group.
Color Converter
Convert any colour between HEX, RGB and HSL formats.
CSS Gradient Generator
Build linear and radial CSS gradients and copy the code.
HTML Entity Encoder / Decoder
Escape text for HTML, or decode &-style entities back to characters.
JWT Decoder
Decode a JSON Web Token and inspect its header, payload and expiry.
Markdown to HTML Converter
Convert markdown into clean HTML you can paste anywhere.
JSON to TypeScript Interface / Type Generator
Turn a JSON sample into clean TypeScript interfaces or type aliases.
Timestamp Converter
Convert between unix timestamps and human-readable dates, with IST built in.