head to head · open source
etcd vs couchdb
etcd has 52,270 GitHub stars, 10,506 forks, 351 open issues and last shipped yesterday. couchdb has 6,953 stars, 1,077 forks, 376 open issues and last shipped yesterday. etcd leads on adoption by 652% (52,270 vs 6,953 stars). etcd is written in Go under Apache-2.0; couchdb is written in Erlang under Apache-2.0. etcd has attracted 20% as many forks as stars, couchdb 15%. couchdb was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (database), so they are genuine substitutes rather than adjacent tools.
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
| etcd | couchdb | |
|---|---|---|
| GitHub stars | ★ 52K | ★ 7.0K |
| License | Apache-2.0 | Apache-2.0 |
| Written in | Go | Erlang |
| Last push | 2026-09-18 | 2026-09-18 |
| Forks | ⑂ 11K | ⑂ 1.1K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick etcd if
- You weight community size — 52K 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 couchdb if
- You want the couchdb feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Erlang
- You evaluated both and couchdb fits your workflow better
About etcd
etcd is an Apache 2.0 licensed, Go written distributed key value store that holds the most critical data of a distributed system in a Raft replicated log, aimed at the platform and infrastructure engineers who must keep that control plane data consistent and available.
About couchdb
Apache CouchDB is an Apache licensed, Erlang built document database with an HTTP/JSON API and multi primary syncing replication, aimed at developers and operators who need data to stay consistent across several nodes, devices, or sites rather than behind one primary server.
read the full couchdb overview →
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Frequently asked questions
Is etcd or couchdb more popular?
etcd has 52,270 GitHub stars and couchdb has 6,953. etcd has the larger community by that measure.
Are etcd and couchdb free?
Both are open source. etcd is licensed under Apache-2.0 and couchdb under Apache-2.0. Neither carries a licence fee.
What is the difference between etcd and couchdb?
etcd is written in Go and couchdb in Erlang. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, etcd or couchdb?
Choose etcd if you want the larger community (52,270 stars) or its Apache-2.0 licence terms. Choose couchdb if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.