head to head · open source
OpenContracts vs olake
OpenContracts has 1,484 GitHub stars, 189 forks, 11 open issues and last shipped yesterday. olake has 1,453 stars, 252 forks, 178 open issues and last shipped yesterday. OpenContracts leads on adoption by 2% (1,484 vs 1,453 stars). OpenContracts is written in Python under MIT; olake is written in Go under Apache-2.0. OpenContracts has attracted 13% as many forks as stars, olake 17%. olake 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
| OpenContracts | olake | |
|---|---|---|
| GitHub stars | ★ 1.5K | ★ 1.5K |
| License | MIT | Apache-2.0 |
| Written in | Python | Go |
| Last push | 2026-09-19 | 2026-09-19 |
| Forks | ⑂ 189 | ⑂ 252 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick OpenContracts if
- You weight community size — 1.5K stars and counting
- You want the MIT license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick olake if
- You want the olake 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 olake fits your workflow better
About OpenContracts
OpenContracts is an MIT licensed, self hosted document intelligence platform that turns a repository of documents into a programmable citation graph, built for builders and hackers who need a document management system for the agentic world as much as a place to store files.
read the full OpenContracts overview →
About olake
OLake Go is an open source data ingestion engine written in Go and licensed under Apache 2.0. It replicates transactional databases, Apache Kafka, and S3 into Apache Iceberg or plain Parquet, and it provides a web UI and a command line interface for building scalable, real time pipelines. The project sits in the Apache Iceberg and lakehouse ecosystem, where its stated goal is to move data into vendor neutral table formats that can be read by query engines and warehouses.
read the full olake overview →
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Frequently asked questions
Is OpenContracts or olake more popular?
OpenContracts has 1,484 GitHub stars and olake has 1,453. OpenContracts has the larger community by that measure.
Are OpenContracts and olake free?
Both are open source. OpenContracts is licensed under MIT and olake under Apache-2.0. Neither carries a licence fee.
What is the difference between OpenContracts and olake?
OpenContracts is written in Python and olake 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, OpenContracts or olake?
Choose OpenContracts if you want the larger community (1,484 stars) or its MIT licence terms. Choose olake if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.