JSON Formatter
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Format, minify, and validate JSON with optional key sorting.
- On your device
- No signup
Private on your device
Your information stays on your device and is not uploaded.
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Paste YAML to validate it and format with indentation, or minify into a compact document. Errors report line and column when available.
How to use this tool
1. Paste YAML into the YAML Formatter input panel. 2. Choose indent size or minify options if shown. 3. Click Format or read live output. 4. Fix any syntax errors reported before copying. 5. Copy the formatted YAML for configs or CI files. Processing runs on your device.
Worked example
Example: paste a compact deployment YAML with inconsistent spacing and format it to 2-space indent for review in a pull request.
How it works
Paste YAML to validate it and format with indentation, or minify into a compact document. Errors report line and column when available.
Limitations
Results are based on the inputs you provide and may not cover every edge case. This tool is for general use and is not professional advice.
Privacy and file handling
Your data stays on your device and is not uploaded.
FAQ
Frequently asked questions
Does it validate YAML?
Yes. Invalid YAML shows a parse error with line and column when available.
Is my YAML stored?
No. Everything stays on your device.
Is YAML Formatter and Validator free to use?
Yes. Utilnivo tools are free to use and do not require an account.
Related pages
- Formatters — compare developer tools and read FAQs
- Browse all free online tools on Utilnivo
- Explore more developer tools on Utilnivo
- JSON Formatter — Format, minify, and validate JSON with optional key sorting.
- XML Formatter — Format, minify, and validate XML with readable indentation.
- JSON Compare — Compare two JSON documents and instantly see added, removed, and changed values. JSON mode highlights changed keys with path hints.
- XML Compare — Compare two XML documents and see tag, attribute, and text line changes.
- Base64 Encoder & Decoder — Encode and decode text with Base64.
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