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Regex & Glob Pattern StudioFree onlineNo sign-upNo upload
Debug ECMAScript Regex Named Captures & .gitignore Glob Patterns
Inspect every regex match offset, numbered and named capture group, `$<name>` replacement output, and `.gitignore` `!negation` rule match interactively in your browser.
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Regex & Glob Pattern Studio — regex named capture groups gitignore tester
Regex & Pattern Studio executes directly in your local JS runtime so confidential log lines, email fixtures, and path trees never touch external servers.
Quick tip: Anchor input validators with `^` and `$` and prefer bounded quantifiers (`{1,64}`) over nested `.*` groups.
Frequently asked questions
Does `.gitignore` mode support directory-only `/` suffixes and `!` overrides?
Yes. It evaluates ordered `.gitignore` rules including `**`, trailing `/`, and `!` re-inclusion rules.
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