What the tool can do
- Shows found matches and capture groups.
- Highlights matches directly in the text.
- Supports g, i, m, s and u flags.
Testing and Debugging
Regex tester online
Regex tester is useful for developers, SEO specialists and analysts when they need to quickly check a search pattern, pull data or validate strings.
FreeNo registrationOnline in browser
How to use
- Enter the regular expression and the desired flags.
- Paste example text into the box below.
- Check the highlight and list of matches.
Where is this service useful?
Validation of email, phone numbers and URLs.
Search for patterns in logs, downloads and content.
Preparation of parsing and automation rules.
FAQ
Is it possible to check capture groups?
Yes. If there are groups in the expression, the tool will show the contents of each match separately.
Is the service suitable for SEO tasks?
Yes. It is convenient for them to search for extra characters, URL patterns, tags and repeated structures in texts.
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NBM-IT
Need a tool for your process?
We can make a custom calculator, validator, integration helper or audit panel for your data, CRM and internal scripts.