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YAML & TOML Validator

Validate and format YAML and TOML files with exact error lines, sort keys and convert between YAML, TOML and JSON. Nothing is uploaded.

No uploads 
name: toolwand
version: 2
features:
  - offline
  - private
server:
  host: 0.0.0.0
  port: 8080
  tls:
    enabled: true
    cert: ./cert.pem

✓ Valid YAML

How to use YAML & TOML Validator

  1. 1Open YAML & TOML Validator. It runs in your browser, no sign-up.
  2. 2Type or paste your input.
  3. 3Copy or download the result.

Questions

Is my config uploaded?

No. Parsing and formatting happen in your browser.

Which versions are supported?

YAML 1.2 (with 1.1 compatibility) and TOML 1.0.

Why do comments disappear?

Formatting re-serialises the parsed data, so comments are not preserved. Validation alone never changes your file.

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