Replace / BigQuery
Best free BigQuery alternatives (open source, self-hosted) 2026
The best open-source alternative to BigQuery is ClickHouse or DuckDB, self-hosted on Railway. Analytics you host. ClickHouse is Apache-2.0; DuckDB is MIT — Snowflake without the credit warehouse.
Estimated save $2,400 a year.
Open the stackStart on Railway
How BigQuery compares
| BigQuery | ClickHouse / DuckDB | |
|---|---|---|
| Pricing model | Hosted subscription | Open-source or fair-code license; you pay the host |
| Hosting | Vendor cloud | Self-hosted on Railway or any VPS |
| Rough monthly cost | Public list price not verified this run | Hosting only — no SaaS seat meter in this repo |
- ClickHouse
Apache-2.0 columnar analytics database
- DuckDB
MIT embedded analytics if the job is a file, not a cluster
FAQ
- What is the best free open-source BigQuery alternative?
- The best open-source alternative to BigQuery is ClickHouse or DuckDB, self-hosted on Railway. Analytics you host. ClickHouse is Apache-2.0; DuckDB is MIT — Snowflake without the credit warehouse.
- Is it free?
- The ClickHouse / DuckDB licenses are open source or fair-code. You still pay hosting (Railway or any VPS) and any APIs the stack calls. There is no BigQuery seat or task bill on this path.
- Can I migrate from BigQuery?
- Yes. Start with the workflows or data you actually use, then cut over. The ClickHouse / DuckDB stack page has the agent prompt and the cost table; most teams rebuild the slice that matters and leave old BigQuery links until they expire.
- How do I deploy it?
- Open the ClickHouse / DuckDB stack, copy the agent prompt, and deploy on Railway (one service, PORT, and a volume when the app needs disk). Placeholder: ClickHouse server + a volume, or DuckDB in-process if the job is a file. Dashboards can sit on /stacks/metabase-bi. No one-click template in this repo yet — Start on Railway.
- What does this replace?
- Snowflake. The published small-team estimate on this stack is $2,400 a year.
Related pages
Stack of the Week
Get one stack a week that replaces a SaaS bill.