Create PKCS#12 Bundle
Privacy Notice: No data is stored on the server.
All keys and certificates are generated in-memory for your download only,
and are discarded immediately after the ZIP file is created.
ℹ️ How to use this tool
This tool generates a private key, a certificate signing request (CSR), and optionally a self-signed certificate packaged into a PKCS#12 (.p12) file.
- Common Name (CN): use your Minecraft server address, e.g.
play.example.net
. - Subject Alternative Names: add extra hostnames if players connect via multiple addresses.
- Key Size: 2048 is standard; 4096 offers stronger security.
- Validity: choose how many years the certificate should remain valid.
- The ZIP you download contains
private_key.pem
,request.csr
, and (if self-signed)certificate.pem
andcertificate.p12
.