PEM / DER Converter
Convert between PEM and DER certificate formats. Runs entirely in your browser.
PEM vs DER: What's the difference?
PEM (Privacy Enhanced Mail) is a Base64-encoded format with header/footer lines. DER (Distinguished Encoding Rules) is the raw binary ASN.1 encoding. Most tools and servers accept PEM, but some (like Java keystores) require DER.
This converter works entirely in your browser — no data is uploaded anywhere.
Ready to Secure Your Enterprise?
Experience how our cryptographic solutions simplify, centralize, and automate identity management for your entire organization.