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LakeSoul

open source / Overall score: 2.8

LakeSoul is a cloud-native lakehouse table format and storage framework with a Rust-native metadata and file-IO core, ACID transactions, upsert semantics, schema evolution, automated compaction and fine-grained access control, shared identically across Spark, Flink, Presto, Ray, Daft and PyArrow bindings. Its Vortex file format can store multimodal data and vector embeddings alongside tabular data.

Openness

5 high confidence

5.0

license: Apache-2.0(OSI)
source: public
core features withheld: no

Apache-2.0 license body confirmed at the repository root (the repository also carries REUSE-convention SPDX headers on individual files, but a root LICENSE exists and is the verbatim Apache-2.0 text). The repository is public and unarchived and builds the whole framework, and the README describes no paid tier, enterprise edition or license-gated build beside it.

https://api.github.com/repos/lakesoul-io/LakeSoul recorded 2026-09-02
Repo metadata - license spdx_id Apache-2.0, private false, archived false, default branch main - for lakesoul-io/LakeSoul.
https://github.com/lakesoul-io/LakeSoul/blob/main/LICENSE recorded 2026-10-07
LICENSE file at the repository root is the verbatim Apache-2.0 text.
https://github.com/lakesoul-io/LakeSoul/blob/main/README.md recorded 2026-10-07
README describes a batteries-included lakehouse platform with no paid tier, enterprise edition or license-key-gated build beside the Apache-2.0 framework.

Adoption

2 low confidence

2.0

LakeSoul is consumed as a table format through Spark, Flink, Presto, Ray, Daft and PyArrow rather than installed as a single package, and no deployment count is published for any of them. That leaves GitHub stars as the only available adoption signal for this project.

https://api.github.com/repos/lakesoul-io/LakeSoul recorded 2026-09-02
Repo metadata - stargazers_count = 3,248 - for lakesoul-io/LakeSoul.

Capability

4 medium confidence

4.0

LakeSoul is a distributed lakehouse with its own metadata management, transaction log and compaction service, ACID transactions and schema evolution, shared across six compute engines. Its file format supports vector retrieval only as a file-format capability, not as a ranking or embedding model running inside a serving path, which is what Vespa provides and what keeps LakeSoul one step below it.

https://github.com/lakesoul-io/LakeSoul/blob/main/README.md recorded 2026-10-07
README documents a distributed, ACID-transactional lakehouse with its own metadata management and compaction service, shared across six compute engines.

Verified 2026-09-27