How to use pem certificate viewer
Inspect a public X.509 certificate’s names, dates, key details and fingerprint. This browser tool shows the inputs, assumptions and resulting output so you can use it for a specific everyday task.
- Enter your own values or choose a supported file.
- Adjust the options and run the tool.
- Review the result, then copy, export or save it when available.
Try this next
Paste a public PEM certificate to inspect subject, issuer, validity dates and a SHA-256 fingerprint.
Viewing a certificate does not verify its trust chain, revocation status or ownership. Do not paste private keys or other secrets.
Questions, answered.
Is pem certificate viewer free to use?
Yes. This tool is part of Nepocore’s free browser toolkit. There is no paid tier, file-download gate or application account required.
What should I check before using the result?
Viewing a certificate does not verify its trust chain, revocation status or ownership. Do not paste private keys or other secrets.
Does this tool upload my files or text?
The tool processes its input in your browser. File contents and text are not sent to a processing server. See the privacy page for local storage and hosting details.