head to head · open source
etcd vs rxdb
etcd has 52,276 GitHub stars, 10,510 forks, 351 open issues and last shipped 2 days ago. rxdb has 23,386 stars, 1,175 forks, 17 open issues and last shipped 2 days ago. etcd leads on adoption by 124% (52,276 vs 23,386 stars). etcd is written in Go under Apache-2.0; rxdb is written in TypeScript under Apache-2.0. etcd has attracted 20% as many forks as stars, rxdb 5%. rxdb 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 | rxdb | |
|---|---|---|
| GitHub stars | ★ 52K | ★ 23K |
| License | Apache-2.0 | Apache-2.0 |
| Written in | Go | TypeScript |
| Last push | 2026-09-18 | 2026-09-18 |
| Forks | ⑂ 11K | ⑂ 1.2K |
| 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 rxdb if
- You want the rxdb feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches TypeScript
- You evaluated both and rxdb 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 rxdb
RxDB is a local first, reactive NoSQL database for JavaScript applications, aimed at developers building offline capable or realtime user interfaces who want client side data storage and sync through their own backend rather than a hosted vendor.
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Frequently asked questions
Is etcd or rxdb more popular?
etcd has 52,276 GitHub stars and rxdb has 23,386. etcd has the larger community by that measure.
Are etcd and rxdb free?
Both are open source. etcd is licensed under Apache-2.0 and rxdb under Apache-2.0. Neither carries a licence fee.
What is the difference between etcd and rxdb?
etcd is written in Go and rxdb 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 rxdb?
Choose etcd if you want the larger community (52,276 stars) or its Apache-2.0 licence terms. Choose rxdb if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.