FAQ
Common questions about Regex Tester.
What regex flavors are supported?
Our tester supports JavaScript-compatible regex syntax, which is similar to most modern languages. For advanced features, check compatibility.
Can I see capture groups?
Yes, the tool displays all capture groups for each match, making it easy to debug complex patterns.
Is my data safe?
Absolutely. All processing is done in your browser; no data is sent to any server.
Do I need to escape special characters?
Yes, you should escape special characters as you would in your code. The tool will treat the input as a raw regex pattern.