Data Converter
Convert YAML ⇄ JSON, CSV → JSON and JSON → CSV, with type inference for CSV — all client-side. The YAML parser is basic (no anchors, merge keys or multiple documents).
Convert between YAML and JSON in either direction. A basic hand-written YAML parser: anchors, merge keys and multi-document files are not supported and may be mangled.
A basic YAML parser: anchors, merge keys and multi-document files are not supported and can be silently mangled. Check important conversions.
Paste or upload CSV and get JSON, with headers and automatic type inference.
Flatten a JSON array of objects into a downloadable CSV. Arrays are joined with semicolons; cells are not neutralised for spreadsheet formulas.
Arrays are joined with semicolons, arrays of objects become JSON text, and cells beginning with = + - or @ are not neutralised against spreadsheet formula injection.