FileGizmo — Data & CSV tools
Find and replace text in CSV
Replace literal text in one CSV column or the entire table without uploading the file.
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Simple by design
Find and replace in CSV in three steps
FileGizmo finds and replaces literal text inside CSV cells without uploading the table. Choose a CSV, select one column or every column, and enter the find and replacement values. Matching can ignore capitalization or require exact case, and you can replace the first match in each cell or every occurrence.
Only cell values are edited; headers, column order, row order, and the CSV structure remain intact. Replacement text is always literal, so dollar signs and backslashes are not interpreted as special replacement instructions. Empty find values are rejected because they would match between every character. The result reports both changed cells and total replacements, making broad edits easier to verify.
Processing happens in a dedicated browser worker and the exported CSV protects formula-like prefixes. Use the preview to inspect identifiers, names, and codes before downloading. This tool performs literal text replacement rather than regular expressions, data-type conversion, or fuzzy matching. If a value appears in multiple semantic contexts, target the narrowest column instead of changing the entire table.
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Choose a CSV file
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Select a column and enter find and replacement text
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Replace preview and download the updated CSV
Good to know
Frequently asked questions
Can replacement target one column?
Yes. Select one header or choose every column in the table.
Can matching ignore capitalization?
Yes. Matching is case-insensitive by default and can be made case-sensitive.
Are replacement values treated literally?
Yes. Dollar signs and other special replacement symbols remain literal text.
Is the edited table uploaded?
No. Parsing replacement and CSV export all run in your browser.
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