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YAML to JSON
Convert YAML to JSON online and for free, without an account. Paste your data or drop a file in, and the result appears right away. Nothing is uploaded: the conversion runs in your browser.
How to convert YAML to JSON
- 1Paste your YAML or drop a file in
- 2Check that the format to convert to is JSON
- 3Copy or save the JSON result
- Your data as JSON, ready to use.
What happens to your data
- Nothing is uploaded.Your data is read and converted by your browser, on your own device.
- Free, no account.You do not sign up for anything and you install nothing.
- One tool, many formats.The same page also converts JSON, YAML, CSV, TSV, JSON Lines, .env and query strings.
What you can do
- Convert YAML to JSON as you go: paste your data or drop a file in, and the result is there.
- Copy the result, or use it in another tool of the site.
- Choose 2 or 4 spaces of indent when the result is JSON or YAML.
- Swap the two formats with one click to convert the other way, when the result can be read back.
- Turn a table into a Markdown table or an HTML table for a README or a web page.
Good to know
- A readable format for settings and config, where indentation shows the structure. Reading keeps big numbers exact; writing lets you pick 2 or 4 spaces of indent.
- JavaScript Object Notation, the usual format for web data. Numbers are kept exactly, even ones too big for JavaScript. A list of objects works as a table, one row per object.
- A table (CSV, TSV, JSON Lines) cannot become one .env file or one query string. Those hold a single object of names and values.
- A CSV is read with its first line as the column names. A semicolon as separator is recognized.
- Between text formats, big numbers such as 12345678901234567890 keep every digit.
- If the input is not valid, you see the error and its position instead of a result.
Questions
Is my data uploaded to a server?
No. It is read and converted by your browser on your own device. It is never sent to us or anyone else.
Can I convert YAML to JSON without installing anything?
Yes. It runs on the page in your browser. You need no program, library or account.
Can I paste a file instead of dropping it?
Yes. Paste the text into the input, or drop a file in. The result updates as you go.
Is it free?
Yes. It is free, with no account and no sign-up.