Parsefy is a set of browser-only converters for JSON, CSV, Excel and markdown tables. Paste an API response or drop a .json file and get clean, spreadsheet-ready output — nested objects become dot-notation columns, and records with different keys merge into one header row instead of dropping fields. Nothing is uploaded. Everything runs in your own tab, so it's safe for production data and client exports. No account, no file-size limits, works offline.