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Toolformattextregexdebug

Regex Tester

Live pattern + flags against a sample buffer. Highlighted matches, capture groups inspector, error messages.

Source

tool

open channel·say hi anytime · 2026
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get in touch

Saw something here?Tell me about it.

It's a portfolio, not a service · but I read every note — drop a line if anything here resonated, or just to say hi.

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Work

Production builds, games, and visual archives.

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Daily-use tools and a personal link library.

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Background, contact, and channels for collaboration.

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M4RKYUM4RKYUM4RKYUM4RKYUM4RKYUM4RKYUM4RKYUM4RKYU
Crafted since 2024
ZhenXiao Mark YuZhenXiao Mark Yu
© 2026 ZhenXiao Mark Yu·Ontario, Canada
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Built with Next.js 16 · React 19 · Tailwind 4

Built with Next.js 16 · React 19 · Tailwind 4