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Regex Tester

Test a regular expression against sample text and inspect matches, groups, indexes and replacement output locally. It accepts text and produces JSON. The operation runs in your browser when the selected option is supported there.

Runs on your deviceFree · no signup
Before you startClear input, output, and processing details.
Input
text you paste
Result
JSON
Capacity
Runs in your browser
Privacy
Stays in your browser

1. Add your input. 2. Choose settings. 3. Check the result and download it. Your original file is not changed on your device. Privacy details

Saved settings — free

Reuse your preferred Regex Tester setup. Recipes stay in this browser and never include files or entered text.

No settings saved for this tool yet.

Included free - no upgrade required

Choose the download name while the generated file type stays unchanged.

Free Pro export namingMatch listCapture groupsFlagsReplacement preview
متى تحتاج هذه الأداة
Preparing JSON from text without installing desktop software
Process one compatible file at a time for a focused result.
Using Match list, Capture groups, and Flags for the specific result you need
كيف تعمل

Choose text, select the available options, then run Regex Tester. The interface exposes the supported settings before creating JSON. The operation runs in your browser when the selected option is supported there.

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