Convert Your PEM Files to DER

Change your base64-encoded files (PEM) to binary (DER) files for maximum Java keystore and environment compatibility. You can convert these files instantly using our free client-side tool (meaning your sensitive files never leave the browser).

Use Our Browser-Based Certificate Converter

Upload PEM File (.pem, .crt, .cer, .key, .txt) *

OpenSSL/Bash (Linux/Unix): Convert PEM to DER

Make your selection from the file types below to generate a command that converts PEM-encoded files to DER-encoded files with .der extensions.

Reminder: Be sure to first replace the placeholder values with your file names and extensions.

Certificate File (.pem → .der)

Private Key File (.pem → .der)

CSR File (.pem → .der)

Only one file type can be selected at a time.

OpenSSL/Bash (Linux/Unix) Command:

openssl x509 -outform DER -in certificate.pem -out certificate.der

Why Choose Us?

- We Offer the Most Trusted Brands

- Streamlined SSL Support (24 Hours/7 Days/365 Year)

- Excellent SSL Experts

- Unlimited SSL Tools

- A 30 Day Money Back Guarantee

Our certs are supported on 99.9% of web browsers, iPhones & mobile devices

Our Awesome Customers

Previous Slide Next Slide