Regex Tester
Test a regex against your text and see matches highlighted in real time.
2 matches
About Regex Tester
Meet Regex Tester: test a regex against your text and see matches highlighted in real time. Perfect for engineers shipping side projects or production code. Instead of fiddling with clunky software, you get a clean result for decoding a token while debugging in just a click or two. No login, no install, no catch — just open it and go.
Why use Regex Tester?
- Fewer mistakes: let Regex Tester handle the fiddly parts so you don't have to.
- Skip the expensive software — Regex Tester does the job for free.
- Simple enough for beginners, dependable enough to use every day.
- Designed to help you learn by example with less effort.
- Get clean, ready-to-use results you can copy and run with.
Whether you do this daily or just once in a while, Regex Tester is built for engineers shipping side projects or production code.
Key features
- Copy your output in one tap and take it anywhere.
- Built to handle real, everyday coding tasks reliably.
- No watermarks, paywalls or usage caps.
- Works on every modern browser, mobile and desktop.
What you can use Regex Tester for
- Decoding a token while debugging
- Formatting a messy API response
- Testing a tricky regular expression
How to use Regex Tester
- Open Regex Tester — there's nothing to install or sign up for.
- Enter your details in the fields above.
- Click “Generate” and let Regex Tester do the work in seconds.
- Copy or tweak the result, and run it again any time.
Tips for getting the best results
- Great for decoding a token while debugging — one of the most common reasons people open Regex Tester.
- Be specific with your input — the more detail you give, the better Regex Tester performs.
- Try it more than once; small tweaks can noticeably improve the result.
Frequently asked questions
How much does Regex Tester cost?
Nothing — Regex Tester is free to use, with no trial limits or paywall.
Who should use Regex Tester?
Regex Tester is great for engineers shipping side projects or production code who want to skip the boilerplate — for example, when decoding a token while debugging.
How does Regex Tester work?
Fill in the fields above and choose “Generate”. Regex Tester processes your input and returns a result in seconds, right in your browser.
What is Regex Tester?
Test a regex against your text and see matches highlighted in real time. It's a free online coding tool you can use right from your browser — handy for decoding a token while debugging and formatting a messy API response.
Can I use Regex Tester for commercial work?
Yes. You're free to use Regex Tester and its results for personal, educational and commercial projects at no cost.
Can I use Regex Tester on my phone?
Absolutely. Regex Tester runs in any modern browser, so it works on phones, tablets and computers alike.