Regex Tester
Developer ToolsToolio Regex Tester lets you refine a pattern against live sample copy. See what matches, adjust flags, and copy a working expression for your codebase. Sample data stays in the tab so logs and emails are never uploaded.
128k uses · Runs locally
How to use
- 1Paste sample text you want to search.
- 2Enter a regular expression and optional flags.
- 3Review highlighted matches in the sample.
- 4Copy the pattern once it behaves as intended.
Benefits
- Iterate on patterns without a REPL.
- Keep log excerpts on this device.
- Spot greedy matches before they hit production.
Frequently asked questions
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