JSON → YAML Converter

Paste JSON, get clean YAML. Private by design—everything runs locally in your browser.

JSON Input

0 chars

YAML Output

Tip: Press Ctrl/Cmd + Enter to convert. You can also drop a .json file into the input box.

About this JSON to YAML converter

If you have ever copied API data or a config file and wished it were easier to read, this JSON to YAML converter is for you. It turns dense JSON into clean, human-friendly YAML in seconds, so you can understand and edit your data faster. The tool is simple enough for beginners, but it is also a time-saver for developers who need a quick conversion without installing anything.

JSON and YAML describe the same kinds of information: objects, lists, strings, numbers, and true/false values. The difference is how they look. JSON uses braces, brackets, and quotes, while YAML relies on indentation and a more readable layout. This converter parses your JSON and outputs equivalent YAML, keeping the data intact while changing the format. Think of it as a translation layer between two popular data formats used across web development and configuration files.

How to use it step by step

  1. Paste your JSON into the input box, or drag and drop a .json file.
  2. Choose formatting options like indentation, sorted keys, or compact flow style.
  3. Click Convert (or press Ctrl/Cmd + Enter) to generate YAML instantly.
  4. Copy the YAML or download it as a .yaml file for your project.

Real-world use cases include preparing Kubernetes manifests, Docker Compose files, CI/CD pipeline configs, and app settings that expect YAML. It is also helpful for documentation and tutorials where YAML is easier for people to read at a glance. If you are troubleshooting an API response, converting JSON to YAML can make nested objects much clearer.

Keep in mind that JSON must be valid before it can be converted. Strings need double quotes, trailing commas are not allowed, and values like undefined or functions are invalid. If the converter reports an error, fix the JSON and try again. The output reflects the structure of your original data, so accurate input leads to accurate YAML.

Everything runs locally in your browser with no uploads or tracking. That makes it a safe choice for private datasets, internal configuration files, or sensitive information you do not want to send to a server.

5 Fun Facts about JSON ⇄ YAML

JSON is valid YAML

YAML 1.2 treats plain JSON as valid YAML, so your input is already “YAML enough”—conversion mainly prettifies spacing.

Spec overlap

Flow mode is JSON in disguise

YAML’s flow style ({}/[]) is basically JSON syntax, handy when you want compact single-line snippets.

Inline twin

Comments unlocked

JSON bans comments, but once converted you can sprinkle # notes into the YAML to explain fields without breaking the data.

Docs inside

Cloud tools speak both

AWS CloudFormation, GitHub Actions, and Kubernetes all accept JSON, but YAML stays friendlier to read and diff—hence the conversion.

Infra trivia

Bundle multiple docs

YAML can stack several documents in one file using --- separators, so you can tack on extra configs after converting.

Batch-friendly

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