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Find and replace values across your entire CSV or within specific columns. Supports exact match, case-insensitive match, and regular expressions.
Yes. Select a specific column from the dropdown, or leave it on "All columns" for a global replace.
Yes. Use $1, $2, etc. in the replacement string to reference captured groups from your regex pattern.
All processing happens directly in your browser. Your files never leave your device and are never uploaded to any server.