Free Developer Tools
Everyday utilities for developers: test regular expressions, generate barcodes, decode ciphers, build meta tags, and reference Tailwind classes — all running client-side in your browser with no account required.
Barcode Generator
Generate scannable UPC-A, EAN-13, and Code 128 barcodes.
Cipher Decoder
Decode ROT13, Caesar, and Base64 cipher values without network queries.
Meta Tag Generator
Formulate complete SEO, Facebook OpenGraph, and Twitter card meta tags.
Regex Tester
Test regular expression matches, capture groups, and substitutions in real-time.
Tailwind Cheat Sheet
Quick reference card layout for spacing, flexbox, grid, and borders.
Text Scratchpad
A fast local text editor that saves automatically to browser storage.
Shavian Transliterator
Convert standard English text into Shavian phonetic script symbols.
Invoice Generator
Fill out a client-side invoice with a live preview and export it to PDF.