Text & Regex

Find, match, transform — strings made simple

Regex tester with live capture groups, text case converter, slugify, diff checker. Click-to-explain the regex so you understand what you wrote, not just that it ran.

4 tools

Regex Tester
Test JavaScript regex patterns against any text. Capture groups, named groups, flags, replace mode. Browser-only.
Text Case Converter
Convert text between camelCase, snake_case, kebab-case, PascalCase, CONSTANT_CASE and 8 more. Browser-only.
Slugify
Turn any text into URL-safe slug. Handles Vietnamese diacritics, German ß, French accents, emoji.
Diff Checker
Compare two texts character/word/line. Generate unified patch. Browser-only.