Text & code tools for developers

Free developer tools that run entirely in your browser. Text diff, JSON formatting, character count, whitespace cleanup, and JS obfuscation.

Text

Text Diff

Compare two texts side by side, line and character level.

Character Count

Count characters, words, lines, and bytes (UTF-8 & CP949).

Whitespace Cleanup

Tidy up repeated spaces, blank lines, tabs, and line breaks.
Code

JSON Formatter

Beautify or minify JSON and point out errors.

JS Obfuscator

Transform JavaScript code to make it hard to read.

URL Encode/Decode

Percent-encode text for URLs or decode it back.

Base64 Encode/Decode

Encode text to Base64 or decode it. (UTF-8)

Unix Time Converter

Convert between Unix timestamps and human dates.