head to head · open source
CrateDB vs Gladys Assistant
CrateDB has 4,436 GitHub stars, 617 forks, 332 open issues and last shipped yesterday. Gladys Assistant has 3,195 stars, 320 forks, 51 open issues and last shipped 2 days ago. CrateDB leads on adoption by 39% (4,436 vs 3,195 stars). CrateDB is written in Java under Apache-2.0; Gladys Assistant is written in JavaScript under Apache-2.0. CrateDB has attracted 14% as many forks as stars, Gladys Assistant 10%. CrateDB was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (iot), 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
| CrateDB | Gladys Assistant | |
|---|---|---|
| GitHub stars | ★ 4.4K | ★ 3.2K |
| License | Apache-2.0 | Apache-2.0 |
| Written in | Java | JavaScript |
| Last push | 2026-09-17 | 2026-09-16 |
| Forks | ⑂ 617 | ⑂ 320 |
| 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 Gladys Assistant if
- You want the Gladys Assistant feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches JavaScript
- You evaluated both and Gladys Assistant 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 Gladys Assistant
Gladys Assistant is a privacy first, open source home automation assistant, written in JavaScript and licensed under Apache 2.0, that runs on hardware you own — a Raspberry Pi, a NAS or a mini PC — so that smart home data stays local instead of living in a vendor cloud.
read the full Gladys Assistant overview →
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Frequently asked questions
Is CrateDB or Gladys Assistant more popular?
CrateDB has 4,436 GitHub stars and Gladys Assistant has 3,195. CrateDB has the larger community by that measure.
Are CrateDB and Gladys Assistant free?
Both are open source. CrateDB is licensed under Apache-2.0 and Gladys Assistant under Apache-2.0. Neither carries a licence fee.
What is the difference between CrateDB and Gladys Assistant?
CrateDB is written in Java and Gladys Assistant in JavaScript. 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 Gladys Assistant?
Choose CrateDB if you want the larger community (4,436 stars) or its Apache-2.0 licence terms. Choose Gladys Assistant if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.