Text Tools

Free, private, and instant text utilities running 100% inside your browser.

All Text Utilities

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Find Duplicate Lines
Detect duplicate lines with color-coded visual highlighting
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Text Diff
Compare two texts and highlight differences
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String Utilities
Case conversion, random strings, count, transform
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Regex Tester
Test JavaScript regex with live matches, groups & replace
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Slug Generator
Turn any text into a clean, URL-safe slug

Featured Solutions & Guides

Interactive JavaScript Regex Tester & Debugger→Regex Capture Groups Inspector & Tester Online→Interactive Regex Replace & Substitution Simulator→Side-by-Side Online Text Diff & Comparison Checker→Side-by-Side Code Diff & Comparison Checker→Find Duplicate Lines Online (Color-Coded Visual Highlighter)→SEO URL Slug Generator (Title to Kebab-Case)→Universal String Case Converter (camel, snake, kebab, Pascal)→All-in-One String Utilities & Word Counter Online→