Visual regex builder
Build a regular expression from visual blocks and ready-made presets, then test it live against your own text.
Add blocks to build a patternHow to use
Visual regex builder lets you build a regular expression from visual blocks and ready-made presets, then test it live against your own text. Paste your text and the result appears immediately, ready to copy back out.
All processing happens in your browser, so your text is never sent anywhere. It's completely free, with no sign-up, no watermarks and no limits on how often you use it.
Examples
Drop in a paragraph and the tool processes it line by line, updating as you edit.
Once visual regex builder shows your output, use the copy or download button to grab it — no retyping.
Frequently asked questions
Is Visual regex builder free to use?
Yes. Visual regex builder is completely free with no sign-up, no watermarks and no usage limits.
Is my data private?
Yes. All processing happens in your browser, so your text is never sent anywhere.
Does Visual regex builder work on mobile?
Yes. It works in any modern browser on desktop, tablet or phone, and keeps working offline once the page has loaded.
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