About this utility
How to use JSON Validator
Check JSON syntax and summarize the root value.
What to provide
Paste JSON or drop a .json file to validate it locally.
- Paste, type, or drag and drop a supported text file into the input area.
- Review the input and the clearly labeled output behavior.
- Select “Run tool” or press Ctrl/Command + Enter, then copy, download, or move the result back into the first input for another pass.
What the result means
A validation report and formatted value.
Privacy and safety
This utility is loaded as browser code and processes your input only in this tab. OmniCastConverter has no upload endpoint and never stores your content, filenames, tokens, or secrets. Generated markup and code are shown as inert text and are never executed.
Limitations
- This checks JSON syntax, not a JSON Schema.
Try the included example
Select “Load example” at any time to restore this tested sample.
[{"id":1},{"id":2}]