Regex Tester
Test and debug regular expressions with real-time matching and explanation
Files never leave your deviceNo signup required
//gi
2 matches found
Visit https://example.com or http://test.org/page?q=1 for details.
| # | Match | Index | Groups |
|---|---|---|---|
| 1 | https://example.com | 6 | — |
| 2 | http://test.org/page?q=1 | 29 | — |
Frequently Asked Questions
What is a regular expression?▼
A regular expression (regex) is a sequence of characters that defines a search pattern. It's used in programming for string matching, searching, and text manipulation.
What do the flags mean?▼
g (global) finds all matches, i (case-insensitive) ignores case, m (multiline) makes ^ and $ match line boundaries, s (dotAll) makes . match newlines.
How to Use Regex Tester
- 1Open the Regex Tester tool above - it loads instantly in your browser.
- 2Enter your data or upload your file. Everything is processed locally on your device - nothing is uploaded to any server.
- 3Get your results instantly. Copy, download, or share - completely free with no signup required.
Regex Testeris part of BriskTool's collection of free online tools. All tools run entirely in your browser for maximum privacy and speed.
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