head to head · open source
etcd vs Apache Druid
etcd has 52,441 GitHub stars, 10,552 forks, 351 open issues and last shipped yesterday. Apache Druid has 14,093 stars, 3,813 forks, 784 open issues and last shipped yesterday. etcd leads on adoption by 272% (52,441 vs 14,093 stars). etcd is written in Go under Apache-2.0; Apache Druid is written in Java under Apache-2.0. etcd has attracted 20% as many forks as stars, Apache Druid 27%. 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 | Apache Druid | |
|---|---|---|
| GitHub stars | ★ 52K | ★ 14K |
| License | Apache-2.0 | Apache-2.0 |
| Written in | Go | Java |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 11K | ⑂ 3.8K |
| 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 Apache Druid if
- You want the Apache Druid feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Java
- You evaluated both and Apache Druid 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 Apache Druid
Apache Druid Druid is a high performance real time analytics database. Druid's main value add is to reduce time to insight and action. Druid is designed for workflows where fast queries and ingest really matter. Druid excels at powering UIs, running operational (ad hoc) queries, or handling high concurrency. Consider Druid as an open source alternative to data warehouses for a variety of use cases. The design documentation explains the key concepts. Getting started You can get started with Druid with our local or Docker quickstart. For Kubernetes deployments, the druid operator is maintained in a separate…
read the full Apache Druid overview →
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Frequently asked questions
Is etcd or Apache Druid more popular?
etcd has 52,441 GitHub stars and Apache Druid has 14,093. etcd has the larger community by that measure.
Are etcd and Apache Druid free?
Both are open source. etcd is licensed under Apache-2.0 and Apache Druid under Apache-2.0. Neither carries a licence fee.
What is the difference between etcd and Apache Druid?
etcd is written in Go and Apache Druid in Java. 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 Apache Druid?
Choose etcd if you want the larger community (52,441 stars) or its Apache-2.0 licence terms. Choose Apache Druid if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.