How to use CSV Row Filter
- Load CSV and choose delimiter and header behavior.
- Select one column, a text condition, comparison value where required, and case sensitivity.
- Review rows before and after, then download the filtered CSV.
CSV Row Filter
Filter CSV rows by one selected column and a constrained text condition, then download the result.
Private by design. CSV and JSON stay in browser memory in this tab. Nothing is uploaded, logged, saved, or executed.
Maximum 16 MB · 50,000 rows · 500 columns · 1,000,000 characters per cell.
Add CSV data, then process it.
Keep rows matching a clear equals, contains, prefix, suffix, or empty-value condition without running code.
How OpenFileTools processes it
Local processing, explicit choices.
One shared deterministic parser handles UTF-8, BOM, quoted fields, escaped quotes, embedded line breaks, and explicit delimiter modes. Cells render only as text, and output is created locally after review.
Questions, answered.
Can I run a regular expression?
No. This tool intentionally uses constrained text conditions; the separate Regex Tester owns regex testing.
Is the source uploaded?
No. Source data and generated output remain in browser memory in this tab.