Regex Tester
Write regular expressions and instantly test them against sample texts.
Regular Expression
Test Text
Results (Highlighted matches)
What is this tool for?
A Regular Expression (Regex) is a sequence of characters that makes up a search pattern. It is the "super power" of programmers to find, extract or replace parts of a massive text in milliseconds (for example, searching all emails within a 100-page document).
What can you do here? Write your Regex pattern above, apply the "Flags" (like g for global or i to ignore caps) and watch in real time as exact matches in your test text light up blue and green. Ideal for debugging your code before taking it to production!
What is Regex Tester and how does it work?
Write regular expressions and instantly test them against sample texts.. This free online tool is designed to be fast, secure, and easy to use directly from your browser without any downloads.
How to use this tool
Follow these simple steps to get the best results instantly:
- Select your preferred options or input your data into the panel.
- Click the main action button to start the process.
- Review your results instantly on the screen.
100% Privacy Guaranteed 🔒
We value your privacy. All processing is done locally on your device. No data is ever sent to or stored on our servers.