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PEM / DER Converter

Convert cryptographic formats between PEM and DER. Move between text-based and binary encodings for certificates and keys.

pemderhex

Source input

Paste PEM, raw base64 DER, or hexadecimal DER depending on the selected input mode.

Blocks
1
Label
CERTIFICATE
DER size
843 bytes

Normalized PEM

Base64 DER

Hex DER

Hex output is ungrouped to keep it easy to paste into other tooling.

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