JWT DecoderJWT 解码器
Decode JWT headers and payloads locally without verifying or uploading tokens.在浏览器本地解码 JWT 头部与载荷，不验证签名且不上传。
Your files are processed entirely in your browser. Nothing is uploaded to any server.所有文件均在浏览器本地处理，不会上传到服务器。
About this tool工具说明
Decode JWT headers and payloads locally without verifying or uploading tokens. Works directly in your browser - no software to install, no account required, completely free.在浏览器本地解码 JWT 头部与载荷，不验证签名且不上传。
FAQ常见问题
Does this verify the signature?
No. It decodes the header and payload so you can inspect claims locally.
Is my token uploaded?
No. The token is decoded entirely in your browser.
Can I inspect expiration claims?
Yes. exp, iat and nbf claims are shown as readable local times when present.
会验证签名吗？
不会。本工具只解码头部和载荷，方便本地查看声明。
Token 会上传吗？
不会，解码完全在浏览器本地完成。
可以查看过期时间吗？
可以，存在 exp、iat、nbf 时会显示可读时间。
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