JSON Formatter
Format, minify, and validate JSON with optional key sorting.
- Browser-based
- No signup
Developer
Paste YAML to validate it and format with indentation, or minify into a compact document. Errors report line and column when available.
Results update as you type. Nothing is stored or sent to a server.
Paste YAML to validate it and format with indentation, or minify into a compact document. Errors report line and column when available.
Use the YAML Formatter and Validator form near the top of this page. Enter the values you know, run the tool, and review the results panel. You can change inputs and run it again. Processing stays in your browser and is not uploaded to Utilnivo servers.
Example: open YAML Formatter and Validator, enter a realistic set of inputs for your situation, and note the primary result. Change one input—such as an amount, rate, or option—and compare how the output changes so you can choose a scenario that fits your needs.
Second example: try edge cases that matter for your task—such as zero values, a different unit system, or a second file—and confirm the tool shows a clear result or a helpful validation message.
Paste YAML to validate it and format with indentation, or minify into a compact document. Errors report line and column when available.
This tool runs in your browser for convenience. Results are estimates or transformations based on the inputs you provide and may not cover every edge case.
Yes. Invalid YAML shows a parse error with line and column when available.
No. Formatting runs locally in your browser.