Does it sort numbers correctly, not alphabetically?

Yes — the sort is numeric-aware, so 2 sorts before 10.

Sort CSV

Sort CSV sorts a CSV file's rows by the column you choose, keeping the header row in place.

Click to upload a fileor drag and drop

Column number (1-based)

Order

Keep only CSV rows matching a value.

Extract specific columns from a CSV file.

Combine multiple PDF files into one document.

Split a PDF into individual single-page files.