Regex Tester
Test regular expressions against sample text. See matches, indices, and a highlighted preview. Supports flags: global, ignore case, multiline.
What This Tool Does
Test regular expressions against sample text. See matches, indices, and a highlighted preview. Supports flags: global, ignore case, multiline. This tool runs entirely in your browser, meaning your files are never uploaded to any server. Your data stays private and secure on your own device.
Simply upload your file, wait for the processing to complete, and download the result. It's fast, free, and works on any device with a modern web browser.
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Frequently Asked Questions
What regex syntax is supported?
Is there a match limit?
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