SSL Certificate Generator
Generate free self-signed SSL/TLS certificates instantly for development and testing. Create RSA or ECDSA certificates with Subject Alternative Names (SAN). No registration required. Client-side generation ensures maximum privacy and security. Perfect for localhost, internal networks, and development environments.
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What is SSL Certificate Generator?
Certificate Generator allows you to create self-signed SSL/TLS certificates and private keys for local development servers and testing environments.
Key Benefits
- Dev environment
- No cost
- Full control
- Immediate issuance
Common Use Cases
- •Local HTTPS
- •Testing APIs
- •Internal tools
- •Learning SSL
How to Generate Self-Signed Cert
- Details: Enter Common Name (e.g. localhost) and validity.
- Generate: Click create certificate.
- Download: Download cert (.crt) and key (.key) files.
Key Features
- Generate self-signed SSL certificates
- Custom subject information (CN, O, OU)
- Key size selection (2048, 4096 bits)
- Validity period configuration
- Download certificate and private key
- PEM format output