Where is tool content processed?
Tool content is processed in your browser.
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RegEx Tester
Test and debug regular expressions quickly with real-time highlighting. Our secure regex tester runs locally in your browser for privacy.
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Tool workspace
How it works
Choose the settings you need, review the result, then copy or export it from the tool area.
Use cases
Use this tool for quick everyday tasks, prototypes, documentation, and browser-first workflows.
Privacy
Tool content is processed in your browser.
Limitations
Results depend on browser capabilities and the options available in this release.
FAQ
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Compare two texts and find the differences easily. A fast and secure side-by-side text comparison tool running entirely in your browser.