What is the most common JSON syntax error?

Trailing commas after the last item in an array or object. Standard JSON does not allow trailing commas, though some parsers are lenient.

Can it validate JSON Schema?

This tool validates JSON syntax only. For JSON Schema validation, you will need a dedicated schema validator.

JSON up to 1 MB can be validated. For larger files, consider validating sections separately.

验证JSON并获取格式化输出，或显示带行号的详细错误信息。

文本输入

验证JSON并获取格式化输出，或显示带行号的详细错误信息。由 JustUse.me 提供 — 免费、无广告、保护隐私。此工具完全在浏览器中运行，文件不会上传到任何服务器。