JSON验证
JSON 格式化 & 错误检测
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提示：输入 JSON 代码后点击"验证 & 格式化"按钮，工具会自动检测 JSON 格式是否正确。如果格式正确，会显示格式化后的结果；如果格式错误，会显示具体的错误信息和错误位置。
About JSON Validator
Check whether JSON is valid and locate syntax errors quickly. The validator reports useful error context so you can fix missing commas, unclosed strings, unmatched brackets, and illegal characters.
Common Uses
- Validate API request and response payloads.
- Find syntax errors in config files.
- Check JSON copied from logs, docs, or databases.
- Prepare JSON before formatting or diffing.
FAQ
Can the validator show line and column information?
Yes. When possible, MKDiff shows line, column, position, and a focused error message.
Does it support comments in JSON?
Standard JSON does not support comments. Remove comments before validation unless your target system accepts a JSON-like format.
Can I format valid JSON after validation?
Yes. The validator can format valid JSON so the structure is easier to read.
Is validation done server-side?
No. Validation runs in the browser and your JSON stays on your device.