CertLens Desk

CertLens Desk is a paid, local-first Mac utility for developers, operators, and support teams who need to inspect X.509 certificates and prepare renewal handoffs without uploading sensitive material to a web tool. Paste a PEM or DER base64 certificate, then review the subject, issuer, validity window, DNS Subject Alternative Names, host coverage, key usage, SHA fingerprints, renewal owner, deploy target, renewal window, and next action. CertLens Desk keeps the workflow fast and private: no account, no analytics, no tracking, and no server upload. Use CertLens Desk to: - Decode PEM certificates locally - Check certificate expiry and remaining days - Review Common Name, issuer, serial number, SAN DNS names, and key usage - Compare a hostname against certificate SAN coverage - Track renewal owner, deploy target, renewal window, risk score, and chain proof - Copy SHA-256 and SHA-1 fingerprints - Generate a compact shareable certificate renewal report - Keep certificate review notes private on your Mac CertLens Desk is intentionally focused. It does not monitor remote endpoints in the background, does not install certificates, and does not send pasted certificate text to Gobling Company or any third party. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/