Alternatives / Snowflake
Looking for an open source Snowflake alternative? We compared 10 open source analytical databases, data warehouses, and data tools by license, self-hosting, performance, and pricing. They range from columnar OLAP engines to semantic layers, ELT tools, and collaborative notebooks.
Written by Maxime DERAME
Last updated:
| Alternative | Best for | License |
|---|---|---|
| ClickHouse | Real-time analytics on massive datasets | Apache-2.0 |
| TimescaleDB | Time-series on PostgreSQL | Apache-2.0 + Timescale License |
| Cube | Semantic layer for analytics | Apache-2.0 / MIT |
| Apache Druid | Streaming analytics with fast queries | Apache-2.0 |
| Databend | Cloud-native data warehouse | Apache-2.0 + Elastic (EE) |
| Deep Lake (Activeloop) | Unstructured and AI data | Apache-2.0 |
| CloudQuery | ELT from cloud and security tools | MPL-2.0 |
| CrateDB | IoT and log analytics | Apache-2.0 |
| Deepnote | Collaborative notebooks | Apache-2.0 |
| Apache Cloudberry | Greenplum-style MPP analytics | Apache-2.0 |
We looked for open-source projects that cover parts of what Snowflake does: storing and querying large analytical datasets, ingesting data, and modeling and exploring it. We verified each project's license, recent activity, stars, and self-hosting in its repository. Snowflake is a managed cloud data platform, so the list mixes databases, a semantic layer, an ELT tool, and a notebook, and we flag licenses that are source available or open core. See our methodology for the full criteria.
ClickHouse, Apache Druid, Databend, CrateDB, TimescaleDB, and Apache Cloudberry are analytical databases. Cube is a semantic layer that sits on top of databases, CloudQuery is an ELT tool that moves data into them, Deepnote is a notebook for exploring data, and Deep Lake stores AI data. No single tool replaces Snowflake's fully managed, all-in-one experience.
ClickHouse is the most popular open-source analytical database, with columnar storage and very fast queries. Databend is a cloud-native data warehouse built in Rust on object storage, Apache Cloudberry is an MPP database descended from Greenplum, and Apache Druid targets real-time analytics on streaming data.
ClickHouse, Apache Druid, Apache Cloudberry, CrateDB, Deepnote, and Deep Lake are Apache-2.0, Cube is Apache-2.0 and MIT, and CloudQuery is MPL-2.0. TimescaleDB is Apache-2.0 outside its tsl directory, which is under the source-available Timescale License and includes features such as compression and continuous aggregates. Databend is Apache-2.0 except for enterprise files under the Elastic License.
All ten can be self-hosted, and several offer managed cloud services. Running a distributed analytical database means handling storage, scaling, upgrades, and backups, so teams without data engineers may prefer the vendors' hosted offerings.
All ten projects were updated within days or weeks of this update, with Deep Lake's last commit in May 2026.
Snowflake is a proprietary managed data warehouse billed by compute and storage, which can become expensive and ties data to its platform. Open-source alternatives let you run analytics on your own infrastructure or cloud account, avoid usage-based pricing, use open formats and standard SQL, and avoid lock-in, at the cost of operating the system and assembling the surrounding tools.
| Alternative | Type | License | Self-hosted | Best for |
|---|---|---|---|---|
| ClickHouse | Columnar OLAP database | Apache-2.0 | Yes | Real-time analytics |
| TimescaleDB | Time-series on PostgreSQL | Apache-2.0 + Timescale License | Yes | Metrics and sensor data |
| Cube | Semantic layer | Apache-2.0 / MIT | Yes | Consistent metrics |
| Apache Druid | Real-time analytics database | Apache-2.0 | Yes | Streaming analytics |
| Databend | Cloud data warehouse | Apache-2.0 + Elastic (EE) | Yes | Cost-effective warehousing |
| Deep Lake (Activeloop) | AI data database | Apache-2.0 | Yes | ML data |
| CloudQuery | ELT platform | MPL-2.0 | Yes | Cloud and security data |
| CrateDB | Distributed SQL | Apache-2.0 | Yes | IoT and logs |
| Deepnote | Notebook | Apache-2.0 | Yes | Collaborative analysis |
| Apache Cloudberry | MPP database | Apache-2.0 | Yes | Greenplum migration |
Want fast analytics on huge datasets
ClickHouse offers columnar storage, compression, replication, sharding, and billion-row queries in seconds under Apache-2.0.
Want a cloud-native open-source warehouse
Databend is a Rust data warehouse on object storage with SQL, time travel, and vector search, though enterprise files use the Elastic License.
Have time-series or metrics data in PostgreSQL
TimescaleDB adds partitioning, compression, and continuous aggregates to PostgreSQL, with some features under the Timescale License.
Need real-time analytics on streams
Apache Druid ingests streaming data from Kafka and Kinesis with time-indexed columnar storage and millisecond queries.
Want a consistent metrics layer across BI tools
Cube defines metrics once in code and serves them through REST, GraphQL, SQL, and MDX APIs with caching and security.
Need to load data from many cloud sources
CloudQuery syncs data from hundreds of cloud and security tools into many destinations with a connector SDK.
Migrate from Greenplum
Apache Cloudberry is a PostgreSQL-based MPP database compatible with Greenplum, with migration tools.
Want collaborative analysis notebooks
Deepnote combines Python, SQL, and AI assistance with real-time collaboration, dashboards, and scheduled notebooks.