Free CSV Compare Tool
Compare two CSV files by row order or key column, then review added rows, removed rows, and cell-level changes without leaving the browser.
Browser-side CSV comparison
Paste CSV text or choose local files. The comparison is calculated in the current browser session.
Use row order for quick file-to-file checks. Use a key column when rows may be sorted differently.
Compare operational exports
Use CSV comparison for inventory exports, customer lists, order reports, pricing sheets, and other tabular files where row identity matters.
Review cell-level changes
Instead of scanning entire files line by line, inspect a single result table where changed cells are highlighted with original and modified values.
Prepare clean inputs
The clearest results come from CSV files with matching headers. Use row order for quick checks, or a stable key such as id, SKU, email, or account number when row order changes.