head to head · open source
etcd vs UStore
etcd has 52,441 GitHub stars, 10,552 forks, 351 open issues and last shipped yesterday. UStore has 646 stars, 35 forks, 26 open issues and last shipped 3 days ago. etcd leads on adoption by 8,018% (52,441 vs 646 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 | ★ 646 |
| License | Apache-2.0 | Apache-2.0 |
| Written in | Go | C++ |
| Last push | 2026-11-02 | 2026-10-31 |
| 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 Note : The main branch may be in an unstable or even broken state during development. For stable versions, see [releases][github release]. etcd is a distributed reliable key value store for the most critical data of a distributed system, with a focus on being: Simple : well defined, user facing API (gRPC) Secure : automatic TLS with optional client cert authentication Fast : benchmarked 10,000 writes/sec Reliable : properly distributed using Raft etcd is written in Go and uses the [Raft][] consensus algorithm to manage a highly available replicated log. etcd is used in production by many companies, and the…
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…
read the full UStore overview →
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Frequently asked questions
Is etcd or UStore more popular?
etcd has 52,441 GitHub stars and UStore has 646. 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 (52,441 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.