ZeroSSL vs acme.sh
A detailed comparison to help you choose between ZeroSSL and acme.sh.
ZeroSSL Free SSL alternative to Let's Encrypt | acme.sh ACME shell script for Let's Encrypt automation | |
|---|---|---|
| Overview | ||
| Rating | 3.8 (46 reviews) | 3.9 (71 reviews)✓ |
| Pricing model | freemium | free |
| Starting price | Free tier available | Free |
| Best for | Developers who want a Let's Encrypt alternative for CA diversification or need OV/EV certificates | Linux sysadmins who want a lightweight ACME client that works on minimal systems without Python |
| Tags | ||
| Tags | free tierapi access | free tieropen source |
| Visit ZeroSSL → | Visit acme.sh → | |
ZeroSSL
Pros
- + Alternative CA to Let's Encrypt — diversification
- + REST API for certificate management
- + Paid OV/EV available
Cons
- - Free tier limited to 3 certificates
- - Less established than Let's Encrypt
acme.sh
Pros
- + Works on any Unix/Linux — no dependencies
- + Supports DNS API for wildcard certs
- + Multiple ACME CAs supported
Cons
- - Shell script — less features than Certbot
- - Manual configuration
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