head to head · open source
oomwoo vs CrateDB
oomwoo has 11,061 GitHub stars, 692 forks, 3 open issues and last shipped 5 days ago. CrateDB has 4,436 stars, 617 forks, 332 open issues and last shipped 4 days ago. oomwoo leads on adoption by 149% (11,061 vs 4,436 stars). oomwoo is written in Python under Apache-2.0; CrateDB is written in Java under Apache-2.0. oomwoo has attracted 6% as many forks as stars, CrateDB 14%. 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
| oomwoo | CrateDB | |
|---|---|---|
| GitHub stars | ★ 11K | ★ 4.4K |
| License | Apache-2.0 | Apache-2.0 |
| Written in | Python | Java |
| Last push | 2026-09-17 | 2026-09-18 |
| Forks | ⑂ 692 | ⑂ 617 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick oomwoo if
- You weight community size — 11K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick CrateDB if
- You want the CrateDB 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 CrateDB fits your workflow better
About oomwoo
OOMWOO is an open source robot vacuum cleaner that you build yourself from a Raspberry Pi CM4 or CM5, 3D printed parts, Arduino and ESP32 electronics, and ROS2 software, aimed at makers and Home Assistant users who want a local, cloud free cleaning robot they can hack, repair, and extend.
read the full oomwoo overview →
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 →
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Frequently asked questions
Is oomwoo or CrateDB more popular?
oomwoo has 11,061 GitHub stars and CrateDB has 4,436. oomwoo has the larger community by that measure.
Are oomwoo and CrateDB free?
Both are open source. oomwoo is licensed under Apache-2.0 and CrateDB under Apache-2.0. Neither carries a licence fee.
What is the difference between oomwoo and CrateDB?
oomwoo is written in Python and CrateDB 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, oomwoo or CrateDB?
Choose oomwoo if you want the larger community (11,061 stars) or its Apache-2.0 licence terms. Choose CrateDB if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.