head to head · open source
CrateDB vs HomeSpan
CrateDB has 4,436 GitHub stars, 617 forks, 332 open issues and last shipped 2 days ago. HomeSpan has 2,166 stars, 199 forks, 9 open issues and last shipped 5 days ago. CrateDB leads on adoption by 105% (4,436 vs 2,166 stars). CrateDB is written in Java under Apache-2.0; HomeSpan is written in C++ under MIT. CrateDB has attracted 14% as many forks as stars, HomeSpan 9%. CrateDB 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
| CrateDB | HomeSpan | |
|---|---|---|
| GitHub stars | ★ 4.4K | ★ 2.2K |
| License | Apache-2.0 | MIT |
| Written in | Java | C++ |
| Last push | 2026-09-18 | 2026-09-15 |
| Forks | ⑂ 617 | ⑂ 199 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick CrateDB if
- You weight community size — 4.4K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Java
- You value the larger contributor base for long-term maintenance
pick HomeSpan if
- You want the HomeSpan feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches C++
- You evaluated both and HomeSpan fits your workflow better
About CrateDB
CrateDB is a distributed, scalable SQL database built for storing and analyzing massive amounts of data in near real time, including complex queries. It is written in Java, licensed under Apache 2.0, and based on Lucene. The project combines the benefits of an SQL database with the scalability and flexibility typically associated with NoSQL databases, and it is PostgreSQL compatible, speaking the PostgreSQL wire protocol as well as offering an HTTP API. It lives in the analytics, big data, and IoT ecosystem, and the topic list places it alongside distributed SQL databases, Elasticsearch, industrial IoT, and IoT a…
read the full CrateDB overview →
About HomeSpan
HomeSpan is an MIT licensed C++ Arduino library for the Arduino ESP32 ecosystem. It lets developers build HomeKit devices on Espressif ESP32 microcontrollers without external bridges or components. The project implements Apple's HomeKit Accessory Protocol Specification Release R2, called HAP R2, and pairs directly to HomeKit through a home WiFi network.
read the full HomeSpan overview →
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Frequently asked questions
Is CrateDB or HomeSpan more popular?
CrateDB has 4,436 GitHub stars and HomeSpan has 2,166. CrateDB has the larger community by that measure.
Are CrateDB and HomeSpan free?
Both are open source. CrateDB is licensed under Apache-2.0 and HomeSpan under MIT. Neither carries a licence fee.
What is the difference between CrateDB and HomeSpan?
CrateDB is written in Java and HomeSpan 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, CrateDB or HomeSpan?
Choose CrateDB if you want the larger community (4,436 stars) or its Apache-2.0 licence terms. Choose HomeSpan if its feature set, stack or MIT licence fits better. Both are self-hostable.