Skip to content

M MesOutilsSimple, fast online tools

FR NL EN

← All tools / Dev & encoding

Regex tester

Test a pattern and see the matches live.

Pattern

//

Flags

g global · i case-insensitive · m multiline · s dot matches newlines · u unicode

Text to test

Matches

Applies a regular expression to a text and highlights the matches with their capture groups. The work runs in a separate thread and stops after two seconds, so a catastrophic pattern cannot freeze the page.

Other tools

Base64
URL encoding
JSON formatter
JSON ↔ YAML
XML ↔ JSON
JWT decoder
Text diff
Case and slug
All tools →

M MesOutilsSimple, fast online tools

No advertising cookies, no third-party trackers. Statistics are counted on our own servers, from a one-way fingerprint of the IP address.

The tools

Speed test
Password generator
QR code generator
IP tools
Network tools
WHOIS
Base64
All 42 tools →

The site

Home
Contact
Privacy

© 2026 MesOutils Built and hosted by ICT Computer FR NL EN