Security / Certificate Files

OpenSSL / LibreSSL

opens 6 file types
macOS
AT A GLANCE
PlatformsmacOS
Opens6 file types
Get it fromwww.openssl.org
Download OpenSSL / LibreSSL

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6 file types verified
Last reviewed Oct 2026

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What is OpenSSL / LibreSSL?

OpenSSL / LibreSSL is listed in our database as a program that opens or converts the file formats shown on this page. It runs on macOS. The formats it works with include .PEM, .P7M, .CER, .REQ and .CRT.

You can get the official version from the developer's website (www.openssl.org); we do not host the installer and only point you to the original source. A detailed, hand-checked description of OpenSSL / LibreSSL is on the way; for now the information here comes straight from our database.

Files OpenSSL / LibreSSL opens

6 formats
Security / Certificate Files

Click any badge for full per-format details - what it is, how to open it and how to convert it.

Download OpenSSL / LibreSSL

SOURCEwww.openssl.orgofficial site - avoid third-party download portals
PLATFORMSmacOS

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programs & formats

Files OpenSSL / LibreSSL opens most

1.PEMPEM - Base64-encoded certificate / key container (X.509, PKCS)
2.P7MPKCS#7 / S/MIME Message (digitally signed or encrypted)
3.CERSecurity certificate (X.509 .cer)
4.REQCertificate Signing Request (CSR) - .req
5.CRTSecurity certificate (X.509 .crt)
6.CSRCertificate Signing Request (PKCS#10)

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