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Controlled server processing

Free Online YAML Validator and Formatter

Validate YAML using Symfony and emit normalized YAML. Object deserialization and custom tags are disabled. This tool processes bounded inputs on this server without retaining submitted content.

Inputs are sent to this server. Uploads are processed temporarily and not retained. Network diagnostics may query public resolvers or the destination website.

Result



How to use YAML Validator and Formatter
Validate YAML using Symfony and emit normalized YAML. Object deserialization and custom tags are disabled. This tool processes bounded inputs on this server without retaining submitted content.
  1. Set Text.
  2. Run the tool, review the result and its stated limitations, then copy or download if needed.
Example & practical use
Validate YAML using Symfony and emit normalized YAML. Object deserialization and custom tags are disabled. This tool processes bounded inputs on this server without retaining submitted content. The example below demonstrates Text.
Example input:
{
  "text": "a: 1"
}
Expected result (relevant fields):
{
  "valid": true,
  "result": "a: 1\n"
}
Features & result limitations
Validate YAML using Symfony and emit normalized YAML. Object deserialization and custom tags are disabled. This tool processes bounded inputs on this server without retaining submitted content.
Frequently asked questions
What inputs does YAML Validator and Formatter accept?
Text
How should I interpret the YAML Validator and Formatter result?
Validate YAML using Symfony and emit normalized YAML. Object deserialization and custom tags are disabled. This tool processes bounded inputs on this server without retaining submitted content.
Where does YAML Validator and Formatter process my data?
Inputs are processed on this server. Uploads use temporary files removed at request end. Public diagnostics contact the named resolvers or website. Private text is not stored in usage counters.