SSL Converter
SSL Converter

One tool for every
certificate format.

Convert SSL certificates between PEM, DER, P7B/PKCS#7, PFX/PKCS#12, CRT, CER and KEY — online or through the API.

certificate formats

Supported in and out.

pfx (PKCS#12)p7b (PKCS#7)pem (Base64)der (Binary)crt (Certificate)cer (Alt. Certificate)key (Private Key)
SSL Converter Online

Convert in your browser

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Why SSL Converter?

One format to rule them all

Free & simple

No accounts, no upsell. One form, one cURL call.

Many formats

PEM, DER, P7B, PFX, CRT, CER, KEY — in and out.

API-ready

A single POST endpoint at /api/. Authenticate with a key.