Find and replace text in a CSV
To find and replace text in a CSV, open find & replace in Sigmera, pick the column, type what to find and what to replace it with, and choose whether to match case or the whole cell. Preview the result, then download the cleaned file. It all happens in your browser — your data is never uploaded, so it’s GDPR-safe by design.
Last updated: June 2026
Use find & replace free in your workspace
Free account, no credit card — every tool, unlimited rows, 3 free downloads a month, nothing uploaded.
🔒 Everything runs in your browser — your file is never uploaded, and the workspace even works offline once it has loaded.
How to find and replace in a CSV
- 1. Open find & replace in your free workspace. Your file is read into the browser’s memory — never sent over the network.
- 2. Pick the column and enter your text. Type what to find and what to replace it with; leave the replacement empty to simply delete the matches.
- 3. Choose how to match. Optionally match case, match the entire cell only, and keep the original column alongside a new
_cleanedone. - 4. Preview and download. See exactly which cells changed, then create a free account to export the cleaned CSV.
Frequently asked questions
- Does this tool upload my CSV file?
- No. Find & replace runs entirely inside your web browser using client-side JavaScript. Your file is never uploaded to a server and never leaves your device, so it is GDPR-safe by design.
- Can I match the whole cell or just part of it?
- Both. By default it replaces every occurrence of your text inside a column. Tick 'Match entire cell only' to replace a cell solely when it equals your text exactly, and 'Match case' to make the search case-sensitive.
- Can I delete text instead of replacing it?
- Yes. Leave the 'Replace with' field empty and every match is removed. You can also keep the original column and write the result into a new _cleaned column.
- How is this different from Excel's Find & Replace?
- Excel works on the whole sheet and changes cells in place. Sigmera targets a single column, can keep the original alongside the cleaned value, previews the result before you commit, and runs in your browser with nothing uploaded.