WorkbenchA useful little toolbox.

PFX certificate viewer

Check a PKCS#12 password and inspect certificate dates locally.

Processed on your device. No file upload.
Choose a file to get started

Drop it here, or use the file picker.

How to use this tool

  1. Choose your file or try the example.
  2. Run the tool and check the result.
  3. Save the result where a download is available.

Supported features & limits

Reads PKCS#12 supported by node-forge. Shows public certificate metadata; private keys are never displayed or exported. ELSTER files work only when their algorithms are supported. Maximum 10 MB.

What happens to my files?

Your browser reads the file locally. File contents are not sent to our server. Closing or resetting this page clears the working result. Downloaded copies remain on your device.

Maintained by Roman Zmazhenko. Updated 1 November 2026.