Characters matching RegEx /\w/ui

Regex "word" characters may match Unicode characters that get canonicalized to one of the regular characters too with /ui flags: developer.mozilla.org/en-US/docs/Web/JavaScript/Re…

Fuzzer

Created Dec 5, 2025

Updated Dec 5, 2025

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CategoryRegular Expressions

VisibilityPublic

TypeJS

CharsetUTF-8

Template used:

/\w/ui.test(String.fromCodePoint(i)) && log(i)

Sample payloads

/\w/ui.test(String.fromCodePoint(i)) && alert(i)