Every CSV converter online makes you upload your file to a server. Fine for a grocery list, less fine for a customer export. The CSV Pro runs entirely in your browser. Nothing is uploaded, nothing is stored. 20 tools: CSV to JSON, Excel, SQL, XML, Markdown. Excel to CSV, JSON, SQL, HTML. Plus a viewer with search and sort, split, merge, dedupe and a delimiter converter. No account, no limits, no watermark.