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Tools tagged "regex"
3 tools
Tools that test, replace, and explain regular expressions.
All NoSend Tools that carry the "regex" tag. Everything runs inside the browser — your inputs never leave your device.
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Glob test — match file paths against `**/*.ts` patterns
Type a Glob pattern (`**/*.ts`, `src/**/!(*.test).js`, `{lib,src}/**/*.{ts,tsx}`, …) and a list of paths to see which match via picomatch (MIT). The equivalent regular expression is shown too — handy for debugging `.gitignore`, Docker `COPY`, Webpack include rules, Vitest test selectors, and GitHub Actions `paths`. Options toggle case-insensitivity, dotfile matching, and extglob (extended glob `!(...)`, `@(...)`, etc.). Copy matched / unmatched separately or export a CSV. Runs entirely in your browser.
developerregex
Regex cheatsheet — searchable JS / Python / PCRE syntax
Interactive regex reference for JavaScript / Python / PCRE flavors. Browse by category (anchors / character classes / quantifiers / groups / lookarounds / flags), free-text search, and one-click copy. Side-by-side comparison shows how each construct differs across flavors (e.g. `(?<=...)` vs `(?P<name>...)`). All data is bundled and runs in your browser.
developerregex
Regex tester — live match & replace preview
Type a pattern and flags to highlight matches in the test string in real time. Capture groups and named groups are listed for every match, and there's a replace preview using $1 etc. Runs entirely in your browser.
developerregextext