Developer Tools – Free Online Utilities for Developers
JSON formatter, Base64 encoder/decoder, password generator, UUID generator, slug generator and word counter — all free, all browser-side, no sign-up required.
JSON Formatter
Beautify, minify and validate JSON with live syntax highlighting. Copy formatted output instantly.
Base64 Encoder
Encode text or files to Base64, or decode Base64 strings back to plain text instantly.
Password Generator
Generate strong, random passwords with custom length and character sets. Strength indicator included.
UUID Generator
Bulk-generate UUID v4 identifiers in standard or compact format with one-click copy.
Slug Generator
Convert any text to a clean, URL-friendly slug. Supports custom separators and case options.
Word Counter
Count words, characters, sentences and estimated reading time. Works live as you type.
Free Browser-Side Developer Utilities
Every tool on this page runs entirely in your browser — your data never reaches any server. Format JSON, encode/decode Base64, generate secure passwords and UUIDs, create URL slugs, and analyse text, all without sign-up or installation. Bookmark this page to have a complete developer toolkit a single click away.