Developer Toolbox
Free online tools for developers: JSON formatter, Base64 encoder, password generator, JWT decoder, URL encoder and more. Fast, private, no data stored.
Image — Resize, crop, convert formats, vectorize to SVG, generate favicons and web iconsJSON — Format, validate, diff and convert JSONBase64 — Encode or decode any text string to/from Base64Password — Generate strong, random passwords with custom optionsGenerators — Generate UUIDs, ObjectIds, alphanumeric strings, Lorem Ipsum, hashes and BcryptJWT — Decode, inspect and sign JSON Web TokensURL — Encode or decode URL components (percent-encoding)Date — Convert Unix timestamps and build cron expressionsFont — Convert, subset and inspect web fonts — TTF, OTF, WOFF, WOFF2Markdown — Convert Markdown to HTML, PDF, DOCX and backText Diff — Compare two texts and visualize the differences line by lineSerialize — Serialize and unserialize data in JSON, Query String and PHP formatsPDF Tools — Merge, split and compress PDF files — fast, privateText Cleaner — Remove invisible Unicode characters and clean up pasted textQR Code — Turn a URL or any text into a QR code and download it as PNG or SVG