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Regex match inspector
Test a regular expression against text and inspect matches and positions. Long-running expressions are stopped.
01Enter your values
Runs in your browser02Regex match inspector
Runs in your browser
How it works
Test a regular expression against text and inspect matches and positions. Long-running expressions are stopped.
Runs in your browser
Discovery source
Your data stays yours
Inputs are processed on this page and are never sent to a server.
About this tool
Use tool ↑Test a regular expression against text and inspect matches and positions. Long-running expressions are stopped.
Inspect JavaScript regex matches and groups; at most 300 matches are displayed.
How to use it
- Enter your values
Pattern · Flags · Text
- Calculate / generate
Test a regular expression against text and inspect matches and positions. Long-running expressions are stopped.
- Result
Matches: 4 [0] Small [6] tools [13] Instant [21] answers
Calculation method
Inspect JavaScript regex matches and groups; at most 300 matches are displayed.
Regex match inspector
- Pattern
- \b\w{4,}\b
- Flags
- g
- Text
- Small tools. Instant answers.
Result
Matches: 4 [0] Small [6] tools [13] Instant [21] answers
Frequently asked questions
How should I interpret the result?
Inspect JavaScript regex matches and groups; at most 300 matches are displayed.
Where does my data go?
Calculations run on your device. Form inputs are not sent to a server.