JSON to YAML Converter Online Free — Instant

JSON to YAML — convert JSON to YAML error runs in your browser · nothing uploaded

⌃⏎ run · ⎋ clear · / focus input

JSON ⇅ upload

⇅ drop a file to load it

YAML

send output to

no matches

Handles pastes up to ~5MB smoothly in your browser — bigger files still work, just budget a second or two.

JSON to YAML Online

Updated 2026-07-09

Convert JSON to YAML online for free, instantly in your browser. Paste JSON and SnapTools produces clean, properly indented YAML — nested objects become blocks, arrays become lists — ready to copy or download. Nothing is uploaded; the conversion runs locally.

YAML is the format of choice for configuration: Kubernetes manifests, CI/CD pipelines, and app config are far easier to read and edit in YAML than in JSON. This converter lets you take any JSON data and express it in that friendlier form in one step.

// how to use

1 Paste your JSON into the input panel.
2 SnapTools converts it to clean, indented YAML as you type.
3 Copy or download the YAML for your config files or pipelines.

// examples

JSON to YAML

Input

{"service":"web","ports":[80,443],"env":{"DEBUG":false}}

Output

service: web
ports:
  - 80
  - 443
env:
  DEBUG: false

// common uses

Generating Kubernetes or CI YAML Making config files readable Porting JSON settings to a YAML tool Documenting data structures

// faq

YAML is easier for humans to read and edit, which is why many config files and CI/CD pipelines use it. Converting lets you reuse JSON data in a YAML-based tool.

Yes for data — the values are preserved exactly. YAML simply expresses the same structure in a more readable layout.

Nested objects become indented blocks and arrays become dash-prefixed lists, at any depth, following standard YAML.

No — conversion happens in your browser, so nothing leaves your machine.

The reverse direction is on the roadmap; for now this tool converts JSON to YAML. Use the JSON Formatter to tidy the JSON side first.

↳ Curious to go deeper? Read the JSON vs YAML: which to use for config guide →

// related

YAML to JSON JSON Formatter JSON to CSV JSON Validator JSON Minifier

Use this via API

Get a free API key →

curl -X POST https://snaptools.dev/api/v1/tools/json-to-yaml \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"json":"{\"service\":\"web\",\"ports\":[80,443],\"env\":{\"DEBUG\":false}}"}'