🗄️

Databases

Replaces: Oracle, MSSQL

Powerful open-source database systems for relational and NoSQL use cases. Proven alternatives to Oracle and Microsoft SQL Server.

🛡️ 13 Open Source Tools
PostgreSQL

PostgreSQL

The most advanced open-source relational database

16.0k
Oracle DB Microsoft SQL Server
PostgreSQL ●● Medium
May 2026
MariaDB

MariaDB

Community-developed MySQL fork with enhanced features

5.7k
Oracle DB Microsoft SQL Server
GPL-2.0 ●● Medium
May 2026
SQLite

SQLite

Embedded SQL database without a server

7.0k
Oracle DB Microsoft SQL Server
Public Domain ● Easy
May 2026

TimescaleDB

Time-series database built on PostgreSQL

18.0k
Oracle DB Microsoft SQL Server
Apache-2.0 ●● Medium
May 2026

InfluxDB

Specialized time-series database for metrics and events

29.0k
Oracle DB Microsoft SQL Server
Apache-2.0 ●● Medium
May 2026

Valkey

High-performance in-memory key-value store (FOSS fork of Redis)

22.0k
Oracle DB Microsoft SQL Server +1
BSD-3-Clause ● Easy
May 2026

FerretDB

MongoDB-compatible NoSQL layer on top of PostgreSQL (FOSS)

11.0k
Oracle DB Microsoft SQL Server +1
Apache-2.0 ●● Medium
May 2026

Neo4j CE

Leading graph database for connected data

13.0k
Oracle DB Microsoft SQL Server
GPL-3.0 ●● Medium
Apr 2026

Dicedb

Open-source, low-latency key/value engine built on Valkey with hierarchical storage tiers.

10.7k
Oracle MSSQL
MIT ●● Medium
Apr 2026

Terminusdb

TerminusDB is a distributed, collaborative database designed for building, sharing, versioning, and…

3.2k
Oracle MSSQL
Apache-2.0 ●●● Advanced
May 2026

Octobase

OctoBase is the open-source database behind AFFiNE, local-first, yet collaborative.

1.9k
Oracle MSSQL
AGPL-3.0 ●● Medium
Mar 2025

Graft

Graft is an open-source transactional storage engine optimized for lazy, partial, and strongly consistent…

1.4k
Oracle MSSQL
Apache-2.0 ●●● Advanced
May 2026
ClickHouse

Clickhouse

ClickHouse® is a real-time analytics database management system

47.2k
Oracle MSSQL
Apache-2.0 ● Easy
May 2026