pem

14.8M downloads in the last 30 days (491.7K/day), up 22% from the previous period.

4.2K crates depend on pem. Strong ecosystem adoption means battle-tested code and long-term stability.

pem has only 1 owner despite 4.2K dependents. This is a bus-factor concern — consider the implications for long-term support.

The API has been stable (1.x) for over 10 years with 28 releases. This level of maturity means you can depend on it without worrying about breaking changes.

At 18KB, pem is lightweight. Small crate size correlates with focused, well-scoped functionality.

Notable dependents include jsonwebtoken, asn1-rs, rcgen, kube-client, x509-certificate. When high-quality crates choose pem, it's a strong quality signal.