SSL Certificate Generator

Generate self-signed SSL certificates for domains and IPs for testing and learning purposes.
IP Or Domain
Generate SSL Parameters
Certificate Generate Result Download
Certificate
Private Key

Description

The SSL certificates generated on this website are not issued by a CA institution and are only intended for learning and testing purposes (such as deploying HTTPS websites with Nginx).
When accessing the deployed HTTPS website, an untrusted certificate prompt will appear.
  • You can input a domain name or IP to generate the corresponding domain certificate or IP certificate. You can also generate wildcard certificates, for example, *.example.com.
  • Algorithm: Choose an encryption algorithm, supporting two certificate algorithms, RSA and ECDSA, with RSA being the most commonly used algorithm.
  • Storage type: When you download the certificate, it will be stored in PKCS12 format. You will need to input a storage password and certificate alias.
  • Download: A zip compressed file containing three files:
    • cert.pem: Certificate in PEM format.
    • private.key: Private key in PEM format.
    • generate.pfx: Certificate stored in PKCS12 format, including the private key.
    When deploying a website with Nginx, you can use the cert.pem and private.key files. If you need other certificate formats, you can use tools like OpenSSL to convert them.