Data Converter

Convert and validate between JSON, YAML and TOML. Paste config files or API payloads — Python parses all three natively, right here in your browser.

Runs entirely on your machine. This tool declares no network access, so nothing you paste ever leaves the page.

Input

Input format

Output

Converted JSON, YAML and TOML will appear here.

Path query

Extract a value from the parsed structure. Supports dotted keys and bracket indices: e.g. users[0].name, services.web.ports[1]. Bracket indices are integers; quoted keys like data["a.b"].c let a key contain dots.

Saved snippets

Recent inputs you saved, stored inside this .vessel file.