DevSwitch.net
Sign in
Back to Tools
⇄

JSON to YAML Converter

Convert JSON data to YAML format

File Converters
Tip: YAML is more human-readable than JSON with cleaner syntax and no braces.

Input JSON Data

Paste your JSON code here...

Explore More Tools

No tools match your search.

JSON to YAML Converter

This tool reads JSON (JavaScript Object Notation) text, parses it into a data tree of keys, values, arrays, and nested objects, then rewrites that tree using YAML syntax. Objects become mappings, arrays become sequences, and nesting is expressed with indentation instead of braces and commas. The conversion runs in your browser, so nothing is uploaded to a server.

Use it when you have JSON output from an API or a config file and you need the same data in YAML, which is often preferred for settings that people read and edit by hand.

What This Converter Actually Does

JSON and YAML describe the same shape of data using different punctuation. JSON marks structure with curly braces, square brackets, and quotation marks. YAML uses line breaks and indentation. When you convert json to yaml, the tool maps each JSON construct to its YAML equivalent:

  • A JSON object becomes a YAML mapping (key and value on a line).
  • A JSON array becomes a YAML sequence (dash-prefixed items).
  • Nested objects and arrays are shown through indentation levels.
  • Strings, numbers, booleans, and null are carried over as scalar values.

The result holds the same information, only in a layout that many teams find quicker to scan and modify.

How to Use the Online JSON to YAML Converter

The parser checks your input first. If the JSON is well formed, it builds the data tree and prints YAML in the output area. If a bracket or quote is missing, you get an error message instead of a half-finished result, so you know exactly what to fix.

  1. Open the JSON to YAML Converter under File Converters.
  2. Paste your JSON into the input textarea, or upload a .json file.
  3. Read the YAML that appears in the output area.
  4. Click "Copy" to send it to your clipboard, or "Download" to save it as a file.

A short example shows the shape of the change. This JSON: 

{
  "name": "devswitch",
  "ports": [80, 443],
  "tls": { "enabled": true }
}

Becomes this YAML: 

name: devswitch
ports:
  - 80
  - 443
tls:
  enabled: true

When to Reach for YAML Instead of JSON

YAML strips out most of the punctuation that JSON requires, which reduces visual noise in files people edit often. That is why many container, CI, and application config files use it. Consider converting json to yaml online in these cases:

  • You received API data as JSON but your config system expects YAML.
  • You want to add comments, which YAML supports and JSON does not.
  • You are documenting a settings block and want fewer brackets to read around.
  • You are migrating a project from JSON-based config to YAML.

If you need the reverse direction, use the YAML to JSON converter to turn YAML back into strict JSON for tools that only accept it.

How This Tool Differs From Related Converters

Every conversion here works on structured data but targets a different output format. Pick the one that matches where the data is going:

  • This online json to yaml converter produces indentation-based YAML for config and readable settings.
  • The JSON to CSV converter flattens an array of objects into rows and columns for spreadsheets.
  • The JSON to XML converter writes tagged XML for systems that expect markup.
  • The JSON beautifier keeps JSON as JSON but reformats spacing for reading.

Flat JSON (an array of objects with the same keys) suits tabular targets like CSV. Nested JSON with deep objects tends to read better as YAML.

FAQ

It parses your JSON into a data tree of keys, values, and arrays, then rewrites that same structure in YAML syntax. Objects turn into mappings, arrays turn into sequences, and nesting is shown through indentation rather than braces. The data stays identical; only the formatting changes to a layout that is often quicker to read and edit.

No. The conversion runs entirely in your browser using client-side JavaScript. Your JSON is parsed and rewritten on your own device, and nothing you paste or upload leaves the page. This means you can convert config files that hold private values without those values being transmitted anywhere.

Yes. Use the YAML to JSON converter for the reverse trip. It reads YAML mappings and sequences, builds the same data tree, and prints strict JSON with braces and brackets. This is common when you edit config in YAML but a tool downstream only accepts JSON input.

The parser validates the input before writing any output. If a brace, bracket, quote, or comma is missing, it stops and shows an error message rather than producing a partial file. That way you never copy YAML that only reflects half of your data. Fix the reported issue and run the conversion again.

Yes. Nested JSON is preserved by indentation. Each level of an object or array in JSON becomes a deeper indentation level in YAML. Objects inside arrays and arrays inside objects both carry over. Because YAML uses whitespace for structure, deeply nested data often reads more clearly than the equivalent JSON with many closing braces stacked together.

YAML removes most of the required punctuation, so files hold fewer braces, brackets, and quotes. It also supports comments, which JSON does not. For settings that people open and change by hand, this reduces mistakes like a missing comma. JSON remains better where a program consumes the data directly and strict syntax matters.

Yes. You can upload a .json file and its contents load into the input area for conversion. The file is read in your browser, not sent anywhere. After the YAML output appears, you can copy it to the clipboard or download it as a file to keep on your machine.

This tool keeps the full tree shape of your data and writes it as YAML with indentation for nesting. The JSON to CSV converter instead flattens an array of objects into rows and columns, taking keys from the first object as headers. Use YAML for config and nested data, and CSV for tabular data that fits a spreadsheet.

Yes. Numbers stay numbers, booleans stay true or false, and null is carried across. Strings become YAML scalar values. Because both formats describe the same underlying types, the values keep their meaning after conversion. Only the surrounding syntax changes, so a value read back from the YAML matches what it was in the original JSON.

Because the work runs in your browser, the practical limit depends on your device memory rather than a server quota. Small and medium files convert without trouble. Very large inputs may take longer since the whole tree is parsed and rewritten in the page. For most config files and API responses, size is not a concern.

No account is needed. Open the page, paste or upload your JSON, and read the YAML in the output area. Since the conversion happens on your own device, there is nothing to sign up for and no login step. You can also explore other developer tools on the site the same way.