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Regex Tester
Test regular expressions against sample text with live highlighting.
Frequently asked questions
Is Regex Tester really free?
Yes — Regex Tester is 100% free with no signup, no watermarks, and no usage limits on the basic version.
Is Regex Tester safe to use?
Your files are processed in your browser whenever possible and never stored on our servers.
Does Regex Tester work on mobile?
Yes — it works on iPhone, iPad, Android, Windows and Mac in any modern browser.
Do I need to install anything?
No. Regex Tester runs entirely in your browser. No download, no extension, no account.
What's the difference between Free and Pro?
Free covers the core Regex Tester features with reasonable daily limits. Pro removes limits, lifts the file-size cap, and unlocks batch processing and embed widgets.
Other ways people use Regex Tester
Popular long-tail searches — each opens a tailored landing page for that use case.
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