DuckDBQuery CSV and Parquet files locally with SQL and save a reusable analytical database.
Free MIT engine · own CPU, RAM and disk · no hosted compute included
Developer tools
ClickHouse
Free softwareOpen sourceLocal
Store event data and run SQL queries for analytical reports.
What you can use it for
Store event data and run SQL queries for analytical reports.
- Blazing fast SQL aggregations over billions of rows using vectorized SIMD execution.
- High compression ratios (up to 5x-10x) reducing disk storage footprint.
- Linear horizontal scalability across distributed cluster nodes.
Workflow coverage and comparison notes
High-performance columnar analytical data warehouse and real-time SQL execution without $2-$4/credit compute bills. Free Apache-2.0 open-source columnar database alternative to ClickHouse Cloud. Delivers identical analytical query performance, processing billions of rows per second with identical SQL syntax, compression ratios, and materialized views. You manage hardware storage tiers, backups, and cluster replication.
Before you switch
Optimized strictly for analytical append-only workloads (OLAP); not suited for frequent single-row transactional updates (OLTP).
Alternatives to these paid apps
Each comparison covers the workflow described above, rather than every paid feature.
More for the same workflow
See alternatives →DuckDB