7 tools
Text & String Utilities
Manipulate and inspect plain text: test a regex against sample input live, diff two blocks of text or JSON line by line, count words and characters, convert between camelCase/snake_case/Title Case, strip duplicate lines, and reveal invisible Unicode characters hiding in pasted text.
- Regex TesterTest regular expressions with live highlighting, groups and replace preview.
- Word CounterCount words and characters, convert text case, and find and replace text — all in your browser.AI
- Diff CheckerCompare two texts or JSON documents and see exactly what changed.
- Case ConverterConvert text between nine common casing styles, plus a smarter AI-assisted Sentence case — all in your browser.AI
- Duplicate Line RemoverFind duplicate lines, sentences, or paragraphs and remove one, some, or all of them — all in your browser.
- Invisible & Homoglyph InspectorDetect hidden zero-width characters, bidi overrides, and spoofing homoglyphs in text, then clean them in your browser.
- ASCII Text Banner GeneratorConvert any text into big block-letter ASCII art — pick the fill character, size and spacing, then copy or download.
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