This formatter parses raw CSV and renders it as an aligned table so problems become obvious before you import anything. Ragged rows — a line with more or fewer fields than the header — are the number one cause of failed imports, and they are almost invisible in a text editor but jump out in a grid. The parser follows RFC 4180, so quoted fields containing commas or embedded line breaks are shown as single cells rather than being split. Use it as a quick pre-flight check on any export before you push it into a CRM, an e-commerce catalogue or a database, and because nothing is uploaded, files containing personal data stay on your device.
Free, fast, and runs entirely in your browser — no signup, no upload to a server.