What is this CSV row filter?
A free, browser-based tool that filters the rows of a CSV by a condition on a single column. Keep only the rows you want — or drop the ones you don't — using equals, contains, regex, empty checks, or numeric comparisons. It's ideal for cleaning lead lists and CRM exports before importing them elsewhere. Everything runs locally in your browser, so your data is never uploaded.
How to use it
- Upload a CSV file or paste it into the box on the left.
- Choose the column to test, pick a condition, and enter a value.
- Toggle Keep or Drop to decide what happens to the matching rows.
- Copy the result or download it as a new CSV.
Common use cases
- Keeping only rows whose email column is not empty before an import.
- Dropping free-plan rows to focus on paying customers.
- Filtering a numeric column, e.g. seats >= 10, to find your top accounts.