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Find & Replace

Help & limits

Literal mode treats the find text exactly and uses case-insensitive Unicode matching only when selected. Regex mode runs in a worker that can be cancelled or timed out (1.5 seconds); input is limited to 200 KB. Regex flags are Unicode and global, with optional case-insensitive and multiline modes. Replacement text is always literal, including $. Maximum literal input 1 MB; output 2 MB.

Example: Replace cat with dog; $ stays literal.

Runs in your browser. No upload.