编码与加密
X.509 证书解码器
Subject, issuer, validity, SAN, fingerprint — all at a glance.
Paste a PEM certificate and click Decode.
编辑注
Understanding · The certificate format that runs the internet.
本深度章节目前仅有英文版本。上方的转换工具支持您的语言;长篇说明文章尚未翻译。
常见问题
Quick answers.
›What certificate formats are supported?
The tool supports PEM format, which typically starts with `-----BEGIN CERTIFICATE-----`, as well as binary DER files. It can also parse Certificate Signing Requests (CSRs).
›Is my certificate data secure?
Yes. The decoding process is performed entirely within your web browser. No certificate data or metadata is ever uploaded to our infrastructure.
›What information can I see in the output?
You can view the Common Name (CN), expiry dates, serial number, public key algorithm, and fingerprints (SHA-1 and SHA-256). It also highlights if a certificate is currently expired.
›Can it decode a chain of certificates?
If you paste a bundle containing multiple certificates, the tool will decode and display the details for each individual certificate in the order they appear.
大家也在搜索
相关工具