CSV row filter
Keep only the CSV rows whose column values match a condition you set.
CSV row filter
Paste CSV or TSV data and this tool keeps only the rows whose values match a condition you set on one column — the way a spreadsheet's filter view works, without opening a spreadsheet. Point it at an export from a database, a form tool or an analytics dashboard and pull out just the rows you need before pasting the result somewhere else.
Pick the column by its header name or its 1-based position, then choose a condition: equals, does not equal, contains, starts with, greater than, less than, is empty, or matches a regular expression. Add a second condition on another column and join the two with AND or OR — for example city equals "Prague" AND age greater than 30. Case-sensitive matching, comparing values as numbers instead of text, and inverting the selection to keep the non-matching rows instead are all separate toggles, and the input delimiter defaults to a comma but accepts a tab, semicolon or anything else your file uses.
The first row is always read as the header, both to resolve a column by name and, when "Keep header row" is on, to carry through into the output; it is never itself tested against a condition. Splitting is a plain delimiter split, so a comma or the chosen delimiter inside a quoted field is treated as a real separator, same as a quick paste-and-check would be. The live tally reports rows in, rows matched and the output size, and turning on "Show match count in output" adds that same count as a comment line at the top of the copyable result.
Everything runs locally in your browser — the CSV never leaves your device, which matters when the file contains customer records or anything else private. Copy the filtered rows, download them as a .txt file, or send the output straight back into the input to layer on another condition.