RegEx Tester
Test your regular expressions instantly. Enter your regex and text, click Test, and see the matches below. All operations are performed in your browser.All operations happen locally in your browser. Your data is private.
Matches
Regex Tester: Your Pattern Detective
Regular expressions (regex) are powerful, but let’s be honest—they can be intimidating. I’ve spent hours debugging patterns, chasing that one missing backslash or misunderstood flag. That’s why a good Regex Tester is a lifesaver for anyone working with text, data, or code.
This tool is for developers, data analysts, and anyone who wants to master pattern matching. Paste your regex, add your test text, and see matches instantly—no more guessing, no more trial and error.
Why Use a Regex Tester?
- Instant Feedback: See matches and errors as you type—learn by doing.
- Debugging: Quickly spot mistakes and refine your patterns.
- Privacy First: All testing happens in your browser. Your data stays private.
- Productivity: Save time and avoid frustration with real-time results.
Tips from Experience
Start simple—test small patterns before building complex ones. Use flags like g (global) and i (case-insensitive) to expand your search. And don’t forget: regex is a skill that gets better with practice.
I use this tool for everything from validating emails to scraping data and even cleaning up logs. It’s a must-have for any serious coder.
Final Thoughts
Regex can be tricky, but with the right tools, you’ll crack any pattern. This Regex Tester is your detective’s magnifying glass—fast, private, and always ready. Next time you’re stuck on a pattern, remember: Ferry Irwandi’s got your back, helping you find the match.
How to use
- Enter a regular expression in the Regular Expression field (no enclosing slashes).
- Set optional Flags (e.g.
g,i,m). - Paste or type the Test Text to run against the regex.
- Click Test to view matches in the output pane. Use Copy to copy results.