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Find and replace
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About this tool
Replace literal text or JavaScript regex matches with optional case and global controls.
Common uses
- Replace literal text or JavaScript regex matches with optional case and global controls.
- Enter source, a nonempty search string and replacement; choose plain text or regex mode.
How to use it
- 1.Enter source, a nonempty search string and replacement; choose plain text or regex mode.
- 2.Choose first or all matches and case sensitivity, then inspect match count and output.
Limits and notes
- Plain replacement keeps $ literal; regex supports $1 and $&. Computation uses a terminable Worker with a 900ms timeout: 200,000 input, 2,000 pattern, 20,000 replacement and 500,000 output characters, up to 5,000 matches.
Frequently asked questions
What does this tool do?
Replace literal text or JavaScript regex matches with optional case and global controls.
What should I check before using the result?
Plain replacement keeps $ literal; regex supports $1 and $&. Computation uses a terminable Worker with a 900ms timeout: 200,000 input, 2,000 pattern, 20,000 replacement and 500,000 output characters, up to 5,000 matches.