YAML to JSON Converter

Paste YAML and convert it to clean, formatted JSON instantly, all in your browser.

✔ 100% Free✔ No Signup✔ No Watermark✔ Unlimited Use

Updated 2026-07-05 · Built and maintained by the MakeToolz team.

Convert YAML to JSON in Your Browser

This free YAML to JSON converter turns YAML into clean, formatted JSON instantly. Paste a config file, a CI pipeline, a Docker Compose file or any YAML, click convert, and get properly indented JSON you can copy or download. It handles mappings, nested objects, lists, and typed values like numbers, booleans and null.

Everything runs in your browser, so your config never leaves your machine, which matters when YAML holds settings or secrets. It is handy for pasting YAML into a tool that only accepts JSON, or just for reading a dense config more clearly.

How to Use the YAML to JSON Converter

  1. 1
    Paste your YAML into the box.
  2. 2
    Click Convert to JSON.
  3. 3
    Copy the formatted JSON or download it as a .json file.

Why Use MakeToolz's YAML to JSON Converter?

Mappings and lists

Handles nested objects, arrays and lists of objects.

Typed values

Recognizes numbers, booleans, null and quoted strings.

Pretty output

Returns JSON with clean two-space indentation.

Copy or download

Grab the JSON in one click or save it as a file.

Private

Your YAML is converted in your browser and never uploaded.

Free

No signup, no limits.

Frequently Asked Questions

How do I convert YAML to JSON?
Paste your YAML here and click Convert to JSON. The tool parses the mappings, lists and values and returns clean, indented JSON you can copy or download.
Is my YAML uploaded to a server?
No. The conversion happens entirely in your browser, so config files and any secrets in them stay on your device.
What YAML features are supported?
Standard mappings, nested objects, lists, lists of objects, and scalar types (strings, numbers, booleans and null), plus inline flow lists and objects. Advanced features like anchors, multi-document files and block-folded strings may not convert.
Why does a number come out as a string?
Values wrapped in quotes stay strings on purpose, matching YAML rules. Remove the quotes if you want it treated as a number or boolean.

Related Free Tools

🧩 JSON FormatterBeautify, minify and validate JSON with clear error messages. 🔐 Base64 Encoder / DecoderEncode text to Base64 or decode it back, with UTF-8 support. 🔗 URL Encoder / DecoderPercent-encode text for URLs, or decode it back to plain text.

More Developer Tools

JSON to CSV ConverterJWT DecoderHash GeneratorMD5 Hash GeneratorSHA-256 GeneratorBorder Radius GeneratorCSS Grid GeneratorFlexbox GeneratorBox Shadow GeneratorGlassmorphism GeneratorUUID GeneratorUnix Timestamp Converter

Browse all text & utility tools →