In Databases
What are the best free and open-source databases?
AI Visibility Ranking
Brands ordered by GenRank score for this question.
DirectionalQuestion-level figures rest on at most 6 answers per brand, so treat them as direction, not a verdict; the category ranking is the number to judge by. Scores are for the week of 2026-11-08.
| Rank | Brand | Named by | Score |
|---|---|---|---|
| 1 | PostgreSQL | 6/6 | 100.0 |
| 2 | MariaDB | 6/6 | 67.7 |
| 3 | SQLite | 6/6 | 65.3 |
| 4 | MySQL | 5/6 | 58.9 |
| 5 | Valkey | 6/6 | 54.1 |
| 6 | DuckDB | 4/6 | 35.6 |
| 7 | ClickHouse | 4/6 | 34.1 |
| 8 | Apache Cassandra | 4/6 | 33.3 |
| 9 | Neo4j | 4/6 | 32.1 |
| 10 | Redis | 3/6 | 28.6 |
Sources these answers cited
The sites each surface's answer cited this week. The logos are the surfaces that cited the site.
| Source | Cited by |
|---|---|
| airbyte.comBest Open Source Database Software Compared for 2026 |   2 surfaces |
| fivetran.comBest Open Source Databases: Top 12 Tools to Consider |  2 surfaces |
| instaclustr.comTop 10 open source databases: Detailed feature comparison - NetApp Instaclustr | 2 surfaces |
| jusdb.comOpen Source Databases (2026): PostgreSQL, MySQL, ClickHouse, Cassandra & Beyond | 2 surfaces |
| openlogic.comTop Open Source Databases and Data Technologies in 2026 | OpenLogic | 2 surfaces |
| clickhouse.comReal-Time Data Analytics Platform | ClickHouse |  1 surfaces |
| cloudspress.com15 Best Free and Open-Source Databases in 2026 | 1 surfaces |
| couchdb.apache.orgApache CouchDB | 1 surfaces |
| dbeaver.ioDBeaver Community | Free Open-Source Database Management Tool | 1 surfaces |
| devhunt.orgOSS Database Comparison: Best Open Source Databases 2026 | 1 surfaces |
| duckdb.orgAn analytical SQL database management system – DuckDB | 1 surfaces |
| findarepo.com30 Best Open-Source Databases on GitHub (November 2026): SQL, Vector & Embedded | 1 surfaces |
15 more
Rank trend
Rank trends are drawn once two weekly editions under the same methodology exist. Only the first edition is in so far.