← Useful Tools
🔍
Regex Tester
Type a regex and test string, see every match highlighted live.
🟡 MediumDifficulty
2 hoursTime
Python, JavaScriptLanguages
What you're building
A regex playground: type a pattern and flags, paste a test string, and every match gets highlighted directly in the text as you type -- no more guessing whether your regex actually works.
What you'll unlock 🔓
You'll need
- Basic JavaScript
- A code editor
- A browser
🗺️ Build roadmap
01 Setup
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02 Build the pattern/flags/text inputs
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03 Compile the regex safely
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04 Find all matches
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05 Highlight matches in the text
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06 Show a match count and list
🔒
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