Developer Toolbox
Free, fast, and privacy-first tools built for developers. No account required, no data sent to any server.
8
Tools
100%
Free
0
Server calls
Private
No data stored
JSON Formatter
Format, validate and minify JSON with live syntax highlighting. Instantly spot errors.
Regex Tester
Test regular expressions in real-time with match highlighting, flags, and capture groups.
Base64 / URL Encoder
Encode and decode Base64 and URL-safe strings instantly. Supports both standard and URL-safe variants.
Color Converter
Convert between HEX, RGB and HSL with an interactive picker and automatic palette generation.
UUID & Hash Generator
Generate UUID v4 identifiers in bulk and compute SHA-1, SHA-256, SHA-512 hashes from any text.
JWT Decoder
Decode JSON Web Tokens and inspect the header, payload, signature, and expiry status.
Timestamp Converter
Convert between Unix timestamps and human-readable dates. Supports seconds and milliseconds.
Lorem Ipsum Generator
Generate placeholder text by paragraph, sentence, or word count with optional HTML wrapping.