Server Fault is a question and answer site for system and network administrators. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I'm looking for a way to find the expiration of a certificate file (either .pfx or .cer) without installing it.

I have access to read the file but can not install it.

share|improve this question
up vote 7 down vote accepted

Uh... double-click the *.cer file. Feast your eyes on the part that says "Valid from x/x/x to x/x/x"

This does not require installing the cert.

What am I missing here?

share|improve this answer
Welp, sometimes I over think the solution. Thanks! Needless to say, this is exactly what I am looking. – Josh R Nov 15 '13 at 1:20

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.