Extract and Replace Text with Regex

Use regex to find patterns, extract data, or prepare find-and-replace operations before running them in your editor.

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Regular expression

//g

Flags:

Examples:

Test text

Matches

The quick brown fox jumps over the lazy dog. Pack my box with five dozen liquor jugs.Enter a pattern above to see matches highlighted here.

Text Processing tips

🔤

Test your search pattern here before running a global find-and-replace in your code editor or text processing script.

🎯

Use the "g" (global) flag to see all matches at once. The match count in the top-right updates in real time as you type.

💡

Alternation (cat|dog) matches either word. Useful for extracting multiple related terms from a large body of text in one pass.

🔢

Quantifiers: \d{3} matches exactly 3 digits; \d{2,4} matches 2 to 4 digits; \d+ matches one or more. Test each against your data.

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