Let's Encrypt is a free, automated, and open Certificate Authority that provides TLS/SSL certificates for websites.
Best Cloudflare SSL/TLS Alternatives ranked by AI · updated Aug 2026
Cloudflare SSL/TLS provides HTTPS protection through Cloudflare's reverse proxy and edge network. Its free tier includes universal edge certificates for proxied domains and is designed for website owners who can route traffic through Cloudflare.
Top 6 Cloudflare SSL/TLS alternatives
ZeroSSL is a free SSL certificate provider that offers easy certificate creation, management, and renewal with automation tools.
AWS Certificate Manager is a service that lets you easily provision, manage, and deploy Secure Sockets Layer/Transport Layer Security (SSL/TLS) certificates for...
Pricing varies based on usage
WoSign Free SSL was a certificate authority service that issued free SSL/TLS certificates for websites. WoSign's publicly trusted certificate operations were discontinued...
Pros
- Provided free domain-validation certificates
- Supported standard HTTPS encryption
- Was available to individual website operators and small businesses
Cons
- No longer available for new certificates
- WoSign certificates were distrusted by major browsers
- No current renewal or customer-support path
Discontinued
5
Google Cloud Certificate Manager
Google Cloud
Google Cloud Certificate Manager provisions and manages TLS certificates for Google Cloud load balancers and related services. It supports Google-managed certificates and...
Pros
- Automatic certificate provisioning and renewal
- Integrates with Google Cloud load balancing
- Supports centralized certificate maps and policy control
Cons
- Primarily designed for Google Cloud infrastructure
- Requires Google Cloud networking and DNS configuration
- Certificates are not generally portable to unrelated servers
Free with supported Google Cloud services
6
Azure App Service Managed Certificates
Microsoft
Azure App Service Managed Certificates provide free TLS certificates for custom domains hosted on Azure App Service. Microsoft handles issuance and renewal...
Pros
- Free automatic certificates for supported custom domains
- Renewal is managed by Azure
- Quick setup inside the App Service portal
Cons
- Limited to eligible App Service configurations
- Certificates cannot be exported for general server use
- Does not cover every wildcard or advanced certificate scenario
Free with eligible Azure App Service plans
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