head to head · open source
etcd vs undb
etcd has 52,270 GitHub stars, 10,504 forks, 351 open issues and last shipped yesterday. undb has 2,980 stars, 156 forks, 56 open issues and last shipped 1.2 years ago. etcd leads on adoption by 1,654% (52,270 vs 2,980 stars). etcd is written in Go under Apache-2.0; undb is written in TypeScript under AGPL-3.0. etcd has attracted 20% as many forks as stars, undb 5%. etcd 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
| etcd | undb | |
|---|---|---|
| GitHub stars | ★ 52K | ★ 3.0K |
| License | Apache-2.0 | AGPL-3.0 |
| Written in | Go | TypeScript |
| Last push | 2026-09-17 | 2025-07-13 |
| Forks | ⑂ 11K | ⑂ 156 |
| 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 undb if
- You want the undb feature set and don't need the biggest community
- You prefer the AGPL-3.0 license terms
- Your stack matches TypeScript
- You evaluated both and undb 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 undb
undb is a local first, offline first no code database platform that also serves as a backend as a service. It lives in the open source no code database and BaaS ecosystem, and it is written in TypeScript with SQLite as its database engine. The project provides a table management UI, and it can be packaged into a single binary with Bun or run as a Docker service.
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Frequently asked questions
Is etcd or undb more popular?
etcd has 52,270 GitHub stars and undb has 2,980. etcd has the larger community by that measure.
Are etcd and undb free?
Both are open source. etcd is licensed under Apache-2.0 and undb under AGPL-3.0. Neither carries a licence fee.
What is the difference between etcd and undb?
etcd is written in Go and undb in TypeScript. 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 undb?
Choose etcd if you want the larger community (52,270 stars) or its Apache-2.0 licence terms. Choose undb if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.