head to head · open source
caddy vs algo
caddy has 75,840 GitHub stars, 4,970 forks, 286 open issues and last shipped 2 days ago. algo has 30,388 stars, 2,366 forks, 77 open issues and last shipped 10 days ago. caddy leads on adoption by 150% (75,840 vs 30,388 stars). caddy is written in Go under Apache-2.0; algo is written in Python under AGPL-3.0. caddy has attracted 7% as many forks as stars, algo 8%. caddy was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| caddy | algo | |
|---|---|---|
| GitHub stars | ★ 76K | ★ 30K |
| License | Apache-2.0 | AGPL-3.0 |
| Written in | Go | Python |
| Last push | 2026-09-17 | 2026-09-09 |
| Forks | ⑂ 5.0K | ⑂ 2.4K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick caddy if
- You weight community size — 76K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Go
- You value the larger contributor base for long-term maintenance
pick algo if
- You want the algo feature set and don't need the biggest community
- You prefer the AGPL-3.0 license terms
- Your stack matches Python
- You evaluated both and algo fits your workflow better
About caddy
Caddy is a Go based, Apache 2.0 licensed HTTP/1.1, HTTP/2, and HTTP/3 web server and reverse proxy that obtains and renews TLS certificates automatically by default, built for operators and teams who want every site on HTTPS without maintaining a separate certificate workflow.
read the full caddy overview →
About algo
Algo VPN is a set of Ansible scripts from Trail of Bits, written in Python and released under AGPL 3.0, that turns a fresh cloud virtual machine into a personal WireGuard and IPsec VPN server, and it is aimed at individuals and small teams who want to run their own VPN instead of trusting a hosted provider.
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Frequently asked questions
Is caddy or algo more popular?
caddy has 75,840 GitHub stars and algo has 30,388. caddy has the larger community by that measure.
Are caddy and algo free?
Both are open source. caddy is licensed under Apache-2.0 and algo under AGPL-3.0. Neither carries a licence fee.
What is the difference between caddy and algo?
caddy is written in Go and algo in Python. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, caddy or algo?
Choose caddy if you want the larger community (75,840 stars) or its Apache-2.0 licence terms. Choose algo if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.