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Regex Tester
Test JavaScript regex live with match highlighting. 7 ready presets including Vietnamese-specific (phone, ID number).
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Flags:
g global · i case-insensitive · m multiline · s dotall · u unicode · y sticky Presets:
Highlight matches 0 matches
📋 Match list (groups)
Features
- Live highlight: type the pattern, see matches instantly (80ms debounce)
- 7 presets: email, Vietnamese phone, URL, IPv4, date, hex color, Vietnamese ID
- Capture groups: full breakdown of each match and its sub-groups
- JavaScript engine: uses browser RegExp — 100% matches what you'd see in JS/TS code
Common flags
g— global (find all matches)i— case-insensitivem— multilines— dotall (. matches \n)u— unicode
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