100% Free Wildcard SSL Certificate Generator

Get a free Let's Encrypt certificate automatically

1 ACME Account

Email Address

Used for certificate expiry notifications

Environment

Staging issues untrusted test certificates - use for development

Production issues real trusted certificates (50/week limit)

2 Domain Configuration

Domain(s) *

Comma-separated. First domain becomes the primary name.

3 Domain Verification

Complete ONE of these challenges to prove domain ownership:

4 Generate Certificate

Ready to finalize

We'll generate a new CSR and finalize the order with Let's Encrypt.

Key Type

Certificate issued successfully!

Certificate

View Certificate Login to Save

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About Free Wildcard SSL Certificate Generator

Get free 90-day wildcard SSL certificates from Let's Encrypt automatically. Our 4-step ACME wizard handles account registration, domain verification via DNS, and certificate issuance — no manual configuration needed. Supports wildcard certs (*.example.com) for all your subdomains.

How to Use

1Enter your email and choose Staging (testing) or Production (real) environment.
2Enter your domain name (e.g., example.com or *.example.com).
3Add the DNS TXT record to verify domain ownership.
4Download your free SSL certificate and private key.

Use Cases

•Secure multiple subdomains with a single wildcard certificate
•Automate SSL certificate issuance for development and staging
•Replace expiring certificates without manual intervention
•Secure API endpoints and microservices with free certificates

Technical Details

Certificate Info

Issuer: Let's Encrypt
Validity: 90 days
Type: Wildcard (DV)

ACME Protocol

DNS-01 challenge validation
Staging and Production environments
Automatic account registration

Tips & Best Practices

•Always test with Staging first before issuing Production certificates.
•DNS propagation can take up to 48 hours — wait before verifying.
•Certificates expire in 90 days — set up auto-renewal.

Frequently Asked Questions

Yes, Let's Encrypt certificates are trusted by all major browsers and operating systems. They are used by millions of websites worldwide.

A wildcard certificate (*.example.com) secures your domain and all its subdomains (api.example.com, mail.example.com, etc.) with a single certificate.

Let's Encrypt certificates are valid for 90 days. We recommend setting up automatic renewal every 60 days to avoid expiration.

Video Tutorial

Video tutorial coming soon