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DEVELOPER TOOLS
Regex Tester
Test patterns against your text. Your text stays on this device.
Your result will appear here.
How to use this tool
Paste your input, choose any options, and select Test pattern. Copy the result when you are ready.
Uses JavaScript regular expressions in a worker with a one-second timeout. Up to 1,000 matches are shown. An empty match advances by one UTF-16 code unit.