head to head · open source
ClickHouse vs nitrite-java
ClickHouse has 50,116 GitHub stars, 9,017 forks, 7,547 open issues and last shipped today. nitrite-java has 916 stars, 95 forks, 0 open issues and last shipped 4 days ago. ClickHouse leads on adoption by 5,371% (50,116 vs 916 stars). ClickHouse is written in C++ under Apache-2.0; nitrite-java is written in Java under Apache-2.0. ClickHouse has attracted 18% as many forks as stars, nitrite-java 10%. ClickHouse 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
| ClickHouse | nitrite-java | |
|---|---|---|
| GitHub stars | ★ 50K | ★ 916 |
| License | Apache-2.0 | Apache-2.0 |
| Written in | C++ | Java |
| Last push | 2026-09-28 | 2026-09-24 |
| Forks | ⑂ 9.0K | ⑂ 95 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick ClickHouse if
- You weight community size — 50K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches C++
- You value the larger contributor base for long-term maintenance
pick nitrite-java if
- You want the nitrite-java 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 nitrite-java fits your workflow better
About ClickHouse
ClickHouse is an open source, column oriented database management system written in C++ that delivers real time analytical query performance on massive datasets. It operates within the broader data infrastructure ecosystem, serving as a high performance alternative to traditional row oriented databases for OLAP workloads.
read the full ClickHouse overview →
About nitrite-java
Nitrite (NOsql Object, or NO2) is an open source, Apache 2.0 licensed NoSQL embedded document store for Java that runs inside the application process and is aimed at developers building desktop, mobile, and small web applications.
read the full nitrite-java overview →
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Frequently asked questions
Is ClickHouse or nitrite-java more popular?
ClickHouse has 50,116 GitHub stars and nitrite-java has 916. ClickHouse has the larger community by that measure.
Are ClickHouse and nitrite-java free?
Both are open source. ClickHouse is licensed under Apache-2.0 and nitrite-java under Apache-2.0. Neither carries a licence fee.
What is the difference between ClickHouse and nitrite-java?
ClickHouse is written in C++ and nitrite-java 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, ClickHouse or nitrite-java?
Choose ClickHouse if you want the larger community (50,116 stars) or its Apache-2.0 licence terms. Choose nitrite-java if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.