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Two free tools that come up together in real workflows. Here's what each does.
Developer & Design
Yaml Prettifier — strict, copy-paste output, browser-side.
Open Yaml PrettifierFormatters
Validate YAML syntax, show errors with line numbers, format/beautify, and convert YAML to JSON.
Open YAML ValidateYour specific task is yaml prettifier — strict, copy-paste output, browser-side. Open the page, drop your input, get the result — typically under a second.
Your goal is validate yaml syntax, show errors with line numbers, format/beautify, and convert yaml to json. Same approach: paste in, get the result, move on. No account, no upload.
These tools solve different problems. Yaml Prettifier is a developer & design; YAML Validate is a formatters. They show up together in some workflows but you typically pick one based on which task you're actually doing.
Yes — both tools are free for unlimited personal use. The Pro plan unlocks higher limits and batch features but the core functionality stays free forever.
Absolutely. Many users chain multiple tools together — process a file with one, then feed the result into another. Nothing is uploaded, so chaining is essentially instant.
No. Both Yaml Prettifier and YAML Validate work without signup. We only ask for an email if you decide to subscribe to a paid plan.