compare
Envoy vs H2O
The same facts for both, read from GitHub every night, and the relation a person reviewed.
| Fact | Envoy | H2O |
|---|---|---|
| Language | C++ | C |
| Licence | Apache-2.0 | MIT |
| Stars | 29k | 12k |
| Latest | v1.39.2 | tag-no-more-releases |
| Last push | 2026-10-06 | 2026-10-06 |
| Release cadence | about 1 day between releases | about 1394 days between releases |
| Active contributors | 75+ commit authors on the default branch in the last 90 days | 3 commit authors on the default branch in the last 90 days |
| Flags | none | none |
How they relate
Both replace nginx. Alternatives to nginx →
PartialEnvoyProxy and load balancer configured through an API, without serving static files.
PartialH2OHTTP/1, HTTP/2 and HTTP/3 server and reverse proxy, scriptable with mruby.
Envoy
H2O
- tag-no-more-releases2026-01-19we no longer tag versions!
- v2.3.0-beta22019-08-13H2O version 2.3.0-beta2pre-release
- v2.2.62019-08-13H2O version 2.2.6
- v2.3.0-beta12018-06-02H2O version 2.3.0-beta1pre-release
- v2.2.52018-06-01H2O version 2.2.5
Envoy
unsigned The latest release, v1.39.2, carries no signature GitHub could verify.
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H2O
unsigned The latest release, tag-no-more-releases, carries no signature GitHub could verify.
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