head to head · open source
etcd vs UStore
etcd has 52,270 GitHub stars, 10,506 forks, 351 open issues and last shipped today. UStore has 638 stars, 35 forks, 26 open issues and last shipped 3 days ago. etcd leads on adoption by 8,093% (52,270 vs 638 stars). etcd is written in Go under Apache-2.0; UStore is written in C++ under Apache-2.0. etcd has attracted 20% as many forks as stars, UStore 5%. etcd 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 | UStore | |
|---|---|---|
| GitHub stars | ★ 52K | ★ 638 |
| License | Apache-2.0 | Apache-2.0 |
| Written in | Go | C++ |
| Last push | 2026-09-18 | 2026-09-15 |
| Forks | ⑂ 11K | ⑂ 35 |
| 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 UStore if
- You want the UStore feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches C++
- You evaluated both and UStore 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 UStore
UStore Modular 1 Multi Modal 2 Transactional 3 Database For Artificial Intelligence 4 and Semantic Search 5 1. supports: RocksDB • LevelDB • UDisk • UCSet backends 2. can store: Blobs • Documents • Graphs • 🔜 Features • 🔜 Texts 3: guarantees Atomicity • Consistency • Isolation • Durability 4: comes with Pandas and NetworkX API and 🔜 PyTorch data loaders 5: brings vector search integrated with USearch and UForm drivers : Python • C • C++ • GoLang • Java packages : PyPI • CMake • Docker Hub Youtube intro • Discord chat • Full documentation Quickstart Installing UStore is a breeze, and the usage is about as simpl…
read the full UStore overview →
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Frequently asked questions
Is etcd or UStore more popular?
etcd has 52,270 GitHub stars and UStore has 638. etcd has the larger community by that measure.
Are etcd and UStore free?
Both are open source. etcd is licensed under Apache-2.0 and UStore under Apache-2.0. Neither carries a licence fee.
What is the difference between etcd and UStore?
etcd is written in Go and UStore in C++. 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 UStore?
Choose etcd if you want the larger community (52,270 stars) or its Apache-2.0 licence terms. Choose UStore if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.