The Bottom Line
- Best for
- Literally every HTTPS-served site in 2026 except those with a specific compliance need for EV certificates. Automation via certbot, Caddy (auto-HTTPS), or a Cloudflare/Vercel-managed certificate is the only sensible setup.
- Price
- Free, no paid tier. Compare plans
Key facts
- Let's Encrypt is a free certificate authority providing SSL/TLS certificates
- It automates the issuance and renewal of HTTPS certificates for any website
- Completely free, run by a non-profit
Pros
- Free SSL certificates
- Automated renewal
- Wide support
- Open source
- Industry standard
Cons
- 90-day certificates
- No wildcard easy
- Setup complexity
- Rate limits
- No warranty
What is Lets Encrypt?
Available on: Web
Ratings Across the Web
Lets Encrypt holds an aggregate rating of 4.8 out of 5 from 20 reviews across G2, last checked August 22, 2026.
Ratings aggregated from independent review platforms. Learn more
Key Features
- Free SSL/TLS
- Automated
- ACME protocol
- Widely trusted
- Non-profit
- Open source
Pricing Plans
Pricing checked Sep 29, 2026
| Plan | Price | Details |
|---|---|---|
| Free | $0 |
+2 more Show less
|
Is Lets Encrypt worth the price?
Let's Encrypt offers an exceptionally fair and generous pricing model, as it is entirely free.
There are no dollar amounts to compare, as all certificates are provided at no cost. This is best for anyone needing SSL/TLS certificates, from individual bloggers to large enterprises, who prioritize cost-effectiveness and automation.
Hidden Costs & Gotchas
Certificates valid for only 90 days
Reviews
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Lets Encrypt FAQ
How does Let's Encrypt contribute to web security?
Which teams benefit most from using Let's Encrypt?
What kind of automation does Let's Encrypt offer?
How is Let's Encrypt priced?
What are the primary limitations of using Let's Encrypt?
Can Let's Encrypt be compared to Auth0 for security purposes?
Source: letsencrypt.org