head to head · open source
Cube vs peerdb
Cube has 20,857 GitHub stars, 2,138 forks, 1,185 open issues and last shipped yesterday. peerdb has 3,272 stars, 212 forks, 204 open issues and last shipped yesterday. Cube leads on adoption by 537% (20,857 vs 3,272 stars). Cube is written in Rust under a custom or non-standard licence; peerdb is written in Go under AGPL-3.0. Cube has attracted 10% as many forks as stars, peerdb 6%. Cube was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (bigquery), 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
| Cube | peerdb | |
|---|---|---|
| GitHub stars | ★ 21K | ★ 3.3K |
| License | Custom / other | AGPL-3.0 |
| Written in | Rust | Go |
| Last push | 2026-09-17 | 2026-09-17 |
| Forks | ⑂ 2.1K | ⑂ 212 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Cube if
- You weight community size — 21K stars and counting
- You want the Custom / other license terms
- Your stack matches Rust
- You value the larger contributor base for long-term maintenance
pick peerdb if
- You want the peerdb feature set and don't need the biggest community
- You prefer the AGPL-3.0 license terms
- Your stack matches Go
- You evaluated both and peerdb fits your workflow better
About Cube
Cube Core is an open source semantic layer for AI, BI, and embedded analytics. It lives in the data analytics and data engineering ecosystem for SQL warehouses, BI tools, applications, and AI agents. It lets teams define metrics, dimensions, joins, and access rules once in code, then expose them through SQL, REST, and GraphQL APIs. It is headless and ships no user interface.
About peerdb
PeerDB is a data integration project in the Postgres ecosystem. It lives in the Data & Analytics / Data Engineering & Integration category and focuses on streaming data from Postgres to data warehouses, queues, and storage engines. The project is built around Postgres first ETL and change data capture workflows rather than a broad connector catalog.
read the full peerdb overview →
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Frequently asked questions
Is Cube or peerdb more popular?
Cube has 20,857 GitHub stars and peerdb has 3,272. Cube has the larger community by that measure.
Are Cube and peerdb free?
Both are open source. Cube has no licence declared in this registry, and peerdb is licensed under AGPL-3.0. Both are free to self-host.
What is the difference between Cube and peerdb?
Cube is written in Rust and peerdb in Go. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Cube or peerdb?
Choose Cube if you want the larger community (20,857 stars) or its Custom / other licence terms. Choose peerdb if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.