head to head · open source
PageIndex vs matrixone
PageIndex has 35,765 GitHub stars, 3,152 forks, 103 open issues and last shipped yesterday. matrixone has 1,888 stars, 312 forks, 745 open issues and last shipped today. PageIndex leads on adoption by 1,794% (35,765 vs 1,888 stars). PageIndex is written in Python under MIT; matrixone is written in Go under Apache-2.0. PageIndex has attracted 9% as many forks as stars, matrixone 17%. matrixone was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (agents), 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
| PageIndex | matrixone | |
|---|---|---|
| GitHub stars | ★ 36K | ★ 1.9K |
| License | MIT | Apache-2.0 |
| Written in | Python | Go |
| Last push | 2026-09-19 | 2026-09-20 |
| Forks | ⑂ 3.2K | ⑂ 312 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick PageIndex if
- You weight community size — 36K stars and counting
- You want the MIT license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick matrixone if
- You want the matrixone feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Go
- You evaluated both and matrixone fits your workflow better
About PageIndex
PageIndex is a vectorless, reasoning based retrieval augmented generation engine written in Python and released under the MIT license. It lives in the AI and machine learning infrastructure ecosystem, with topics spanning RAG, information retrieval, LLM reasoning, context engineering, and agentic AI. Instead of building a vector index, PageIndex generates a hierarchical tree index for each document and then lets a large language model reason its way through that tree, in the same way a human expert turns to the right section of a long report. The project ships as a Python SDK, a hosted cloud service, and a docume…
read the full PageIndex overview →
About matrixone
MatrixOne is an AI native HTAP database written in Go that brings Git style version control to data and adds built in vector and full text search, built for teams shipping intelligent agents, RAG applications, and real time analytical workloads that would rather run one system than four.
read the full matrixone overview →
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Frequently asked questions
Is PageIndex or matrixone more popular?
PageIndex has 35,765 GitHub stars and matrixone has 1,888. PageIndex has the larger community by that measure.
Are PageIndex and matrixone free?
Both are open source. PageIndex is licensed under MIT and matrixone under Apache-2.0. Neither carries a licence fee.
What is the difference between PageIndex and matrixone?
PageIndex is written in Python and matrixone 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, PageIndex or matrixone?
Choose PageIndex if you want the larger community (35,765 stars) or its MIT licence terms. Choose matrixone if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.