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YAML ↔ JSON Converter

YAML ↔ JSON Converter

Convert YAML documents to JSON, or JSON values to YAML. The result updates as you type.

Free
No signup
Instant
Private
Input
0 words • 0 characters • 0 without spaces • 0 lines
Direction
Convert to
Output
0 words • 0 characters • 0 without spaces • 0 lines

Private by design

This conversion runs entirely in your browser. Your text is not sent to a server.

Tip

YAML → JSON and XML → JSON keep nested structure. CSV expects a header row, or a JSON array of objects the other way.

How to convert with YAML ↔ JSON Converter

  1. Paste YAML, XML, or CSV (or JSON for the reverse direction).

  2. The converted result updates as you type — nothing is uploaded.

  3. Pick a direction, or Convert to to open YAML, XML, or CSV.

  4. Copy the result. Invalid input shows an error instead of output.

When should you use it?

  • YAML

    Turn config files into JSON, or JSON back into YAML.

  • XML

    Map elements to objects, or objects back to elements.

  • CSV

    Use the header row as keys, or emit a table from objects.

  • Stays here

    Spreadsheets and configs never leave this tab.

Your data stays private.

YAML, XML, and CSV conversion run entirely in your browser.

Learn more about privacy →

About converting YAML, XML, and CSV with JSON

YAML ↔ JSON, XML ↔ JSON, and CSV ↔ JSON share this family. YAML and XML keep nested structure. CSV expects a header row, or a JSON array of objects the other way. Invalid input shows an error instead of a guessed document. Convert to jumps between YAML, XML, and CSV.

Worked example: a YAML mapping with nested keys becomes a JSON object; a two-column CSV with a header becomes an array of objects. XML attributes and repeated tags follow the converter’s mapping — inspect the result before you ship it.

Related: JSON Formatter to pretty-print, XML Formatter if you only need indent, SQL Formatter for queries. Nothing is uploaded. These are not database migrations.

Related data tools

XML ↔ JSON Converter

Convert XML documents to JSON, or JSON objects to XML. The result updates as you type.

Open tool

CSV ↔ JSON Converter

Convert CSV to JSON objects, or JSON arrays to CSV. The result updates as you type.

Open tool

JSON Minifier

Remove whitespace from valid JSON. Type or paste below — the result updates as you type.

Open tool

JSON Formatter

Pretty-print JSON with indentation, optional key sorting, and minify. The result updates as you type.

Open tool

YAML ↔ JSON Converter examples

YAML → JSON

Input
name: Ada age: 36
Output
{ "name": "Ada", "age": 36 }

Data converters

ToolExampleTypical use
YAML{ "name": "Ada" }Configs and documents as JSON
XML{ "user": { "name": "Ada" } }Nested tags as JSON objects
CSV[{ "name": "Ada" }]Tables as an array of objects

YAML ↔ JSON Converter FAQ

Yes. Paste YAML, choose YAML → JSON, and the formatted JSON appears as you type. Nothing is uploaded.

Yes. Objects and arrays are preserved when converting valid JSON into YAML.

The tool validates input first and shows an error instead of producing incorrect output.