Are my JSON files uploaded anywhere?

No. This conversion runs entirely inside your browser, so the file never leaves your device. You can confirm it yourself: open the network tab of your browser's developer tools and watch that nothing is sent while the file converts.

Is converting JSON to YAML free?

Yes, without a limit on how many files you convert and with no watermark on the result. Files up to 100 MB are covered by the free plan.

Does converting JSON to YAML lose quality?

No. YAML stores the same content without discarding anything, so the result is identical in quality to the original.

Do I need to install anything to open YAML files?

No installation is needed for the conversion itself — it runs in the browser you already have. Opening the YAML afterwards needs whatever software normally handles YAML Ain't Markup Language on your device.

JSONtoYAML

Convert JSON to YAML

Up to 3 files at once, 100 with Pro. Mixed formats are fine.

You can convert JSON to YAML free and without an account: drop the file above and the YAML is ready to download in a second or two. The conversion happens inside your own browser, so the file is never uploaded — it works on Windows, Mac, Linux, iPhone and Android, and keeps working with the network switched off.

What JSON and YAML are for

The data format of the web. Nested structures, read by every programming language.

Indentation-based configuration format. Readable by people, picky about whitespace.

How to convert JSON to YAML

Drop your JSON file onto this page, or click to pick one.
Choose YAML as the target. The conversion runs inside your browser — the file is never uploaded.
Download the finished YAML file.

JSON vs YAML: what changes

JSON compared with YAML
	JSON	YAML
Full name	JavaScript Object Notation	YAML Ain't Markup Language
File extension	.json	.yaml, .yml
Media type	application/json	application/yaml

Quality: Nothing is lost. The result holds exactly the same picture, text or data as the original.
Where it runs: This conversion runs inside your browser. Your file is never uploaded, and it works with the network disconnected.

JSON to YAML: common questions

Are my JSON files uploaded anywhere?: No. This conversion runs entirely inside your browser, so the file never leaves your device. You can confirm it yourself: open the network tab of your browser's developer tools and watch that nothing is sent while the file converts.
Is converting JSON to YAML free?: Yes, without a limit on how many files you convert and with no watermark on the result. Files up to 100 MB are covered by the free plan.
Does converting JSON to YAML lose quality?: No. YAML stores the same content without discarding anything, so the result is identical in quality to the original.
Do I need to install anything to open YAML files?: No installation is needed for the conversion itself — it runs in the browser you already have. Opening the YAML afterwards needs whatever software normally handles YAML Ain't Markup Language on your device.