head to head · open source
Olares vs datachain
Olares has 5,278 GitHub stars, 329 forks, 155 open issues and last shipped yesterday. datachain has 2,820 stars, 157 forks, 101 open issues and last shipped today. Olares leads on adoption by 87% (5,278 vs 2,820 stars). Olares is written in Go under AGPL-3.0; datachain is written in Python under Apache-2.0. Olares has attracted 6% as many forks as stars, datachain 6%. datachain was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (ai-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.
← all 20902 open source comparisons
Side by side
| Olares | datachain | |
|---|---|---|
| GitHub stars | ★ 5.3K | ★ 2.8K |
| License | AGPL-3.0 | Apache-2.0 |
| Written in | Go | Python |
| Last push | 2026-09-19 | 2026-09-20 |
| Forks | ⑂ 329 | ⑂ 157 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Olares if
- You weight community size — 5.3K stars and counting
- You want the AGPL-3.0 license terms
- Your stack matches Go
- You value the larger contributor base for long-term maintenance
pick datachain if
- You want the datachain feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Python
- You evaluated both and datachain fits your workflow better
About Olares
Olares is an open source personal cloud operating system built to run AI agents and large language models on hardware you own. It is written in Go and released under the AGPL 3.0 license, and it sits in the cloud native and self hosted corner of the machine learning infrastructure ecosystem. The project describes itself as an operating system you operate in plain language, powered by Kubernetes, turning a machine or a set of machines into a self hosted AI platform reachable from any browser.
read the full Olares overview →
About datachain
DataChain is an Apache 2.0 Python library that turns files in S3, GCS, and Azure into versioned, typed datasets queryable at warehouse speed, and it is built for data and machine learning teams handling unstructured data as well as for the AI coding agents that operate on those datasets.
read the full datachain overview →
More in AI & Machine Learning
Related comparisons
More Machine Learning Infrastructure projects
Compare either of these against the rest of the Machine Learning Infrastructure field.
Frequently asked questions
Is Olares or datachain more popular?
Olares has 5,278 GitHub stars and datachain has 2,820. Olares has the larger community by that measure.
Are Olares and datachain free?
Both are open source. Olares is licensed under AGPL-3.0 and datachain under Apache-2.0. Neither carries a licence fee.
What is the difference between Olares and datachain?
Olares is written in Go and datachain in Python. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Olares or datachain?
Choose Olares if you want the larger community (5,278 stars) or its AGPL-3.0 licence terms. Choose datachain if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.