About convert-csv

convert-csv.com is a free collection of 38 data conversion and analysis tools that run entirely in your web browser. Convert between CSV, Excel, JSON, XML, YAML, SQL, KML, GeoJSON and more without uploading a single byte.

Most online converters send your files to a server. We don't. Every conversion happens locally using JavaScript and Web Workers, so your data stays on your device. That makes these tools safe for sensitive or proprietary data.

The tools handle large files without freezing the page. Streaming parsers and background workers keep things responsive, even with 50MB+ files.

Everything is free with no sign-up and no limits. Missing a tool? It's probably on the roadmap.