What is a .P7B file?
P7B is a PKCS#7 bundle of certificates, often a certificate chain.
- Did you know
- P7B files carry certificates only - never the private key.
- P7B follows the PKCS#7 Cryptographic Message Syntax, a standard from RSA Laboratories.
- Windows and Java Tomcat are the platforms that most commonly hand out certificate chains as P7B files.
- What Analyser reads
- Inspect security and crypto files: PEM private/public keys (RSA/EC/Ed25519, PKCS#1 vs PKCS#8, encryption), OpenSSH .pub with SHA-256 fingerprint, PuTTY .ppk, PKCS#10 CSR, X.509 CRL, PKCS#7 bundles, OpenVPN/WireGuard configs, Java KeyStores, Apple .mobileconfig/.mobileprovision, Windows .reg (with autorun flagging), and pcap/pcapng captures - warning when a private key or secret is present.
- Depth of analysis
- .P7B is an identification-grade format: Analyser recognises it from its bytes and decodes the header metadata it carries, rather than opening it in a full viewer. Formats that do get a full viewer are marked "Full" on the formats page.
- Open a .P7B file
- Drag a .P7B file onto the Analyser home page (or tap to pick one). It is identified entirely in your browser - nothing is uploaded, there is no account, and it works offline once installed.