Regex Tester
Developer ToolsLive regex with match highlights
FreePrivateInstant
Similar tools you may like
History
All history →Regex Tester — at a glance
Write a regular expression and see live which parts of your text match it.
Pattern: \d+
Text: Order 123 and 45
Match
Match 1: 123
Match 2: 45
How to use it — step by step
Great for learning regex and for checking patterns before putting them in code.
1
Write the pattern
Type your regular expression without the surrounding slashes.
2
Pick flags
g = all matches, i = ignore case, m = multi-line, s = dot matches new line.
3
Add test text
Paste the text you want to search.
4
See matches
Matches are highlighted with their position and capture groups.
Pro tips
Small things that make the result better.
✦\d means a digit, \w a letter/number, \s a space.
✦Add the g flag to find every match, not just the first.
✦Use ( ) to capture parts of a match (groups).
Quick facts
4 flagsg, i, m and s
Livehighlighting as you type
Groupscapture groups shown
Errorsinvalid patterns flagged
Frequently Asked Questions
What does the g flag do?+
It finds all matches in the text instead of stopping at the first.
What does i do?+
It makes the match ignore upper/lower case differences.
Which regex flavour is used?+
The JavaScript regular expression engine of your browser.
Is my data safe?+
Yes. Everything runs inside your own browser. Your text, files and images are never uploaded to any server.
More Free Tools
Guides you might like
All guides →Cron Expression ExplainerReading a cron expression: five fields and six gotchasRobots.txt Generatorrobots.txt explained: Allow, Disallow, wildcards and the mistakes that block your siteChmod Calculatorchmod permissions explained: what 755, 644 and 777 actually meanSitemap XML Generatorsitemap.xml explained: what to include, the 50,000 URL limit and HTML sitemaps