Regex Tester
Live regex matching with group breakdown.
Regex Tester is a free, browser-based tool on Toolery. Live regex matching with group breakdown. Everything runs locally on your device, so it's fast and completely private — no uploads, no queues, and no sign-up to try it.
Regex Tester — FAQ
Is Regex Tester free to use?
Yes. Regex Tester is completely free on Toolery — no watermarks and no sign-up required to try it.
Is Regex Tester private — do my files stay on my device?
Yes. Regex Tester runs entirely in your browser. Your files and input are processed on your own device and never uploaded to a server, so nothing is stored, seen, or shared.
How do I use Regex Tester?
Live regex matching with group breakdown. Open the tool, add your file or input, and get the result instantly — it all happens on your device.
Does Regex Tester send my data anywhere?
No. Regex Tester runs entirely in your browser — your input never leaves the tab, which makes it safe for code, tokens, and other sensitive data.