Free developer tools
110 quick tools for code, data, images, PDFs and more. They run in your browser, so your files and text stay on your device.
9 tools
Base64 Encoder
Encode and decode Base64 text and files, with full Unicode and URL-safe support.
Open toolBase64 Image Encoder
Convert images to Base64 data URLs (with CSS and HTML snippets) and decode them back.
Open toolHTML Entity Encoder / Decoder
Escape text to HTML entities (named, decimal or hex) and decode entities back to text.
Open toolURL Parser & Encoder
Break a URL into its parts and query parameters, encode or decode it, and flag risky patterns.
Open toolNumber Base Converter
Convert numbers between binary, octal, decimal, hex and any base from 2 to 36 — even huge ones.
Open toolHash Generator
Generate MD5, SHA, PBKDF2 and Bcrypt hashes right in your browser.
Open toolUUID Generator
Generate UUID v1, v3, v4, v5 and v7 in bulk, and validate or inspect existing UUIDs.
Open toolJWT Decoder
Inspect a JSON Web Token’s header, payload and expiry.
Open toolJWT Expiry Checker
Check whether a JWT is expired, not yet valid or about to expire, with a live countdown.
Open tool