Best Database Open Source Tools in 2026

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Open Source Alternatives

Totum

stars 983forks 57

Self-hosted low-code platform for internal business tools

Low-code Self Hosted Workflow Automation+5

BigchainDB

stars 4Kforks 760

Blockchain database with high throughput and low latency

Database Web3 API Development Tools+4

Apache CouchDB

stars 6.9Kforks 1.1K

NoSQL database with multi-primary sync and HTTP API

Database API Infrastructure File Sync & Storage+3

PouchDB

stars 17.6Kforks 1.5K

JavaScript database that syncs with CouchDB, works offline

Database Developer Framework API Development Tools+3

OrientDB

stars 5Kforks 871

Multi-model NoSQL database: graphs, docs, and key-value

Database Self Hosted Developer Tools+3

KeyDB

stars 12.5Kforks 662

Faster, multithreaded Redis drop-in with no API changes required

Database Open Core Developer Tools+4

TiKV

stars 16.8Kforks 2.3K

Distributed key-value store with ACID transactions at scale

Database Cloud Native Developer Tools+4

MinIO AIStor

stars 61.4Kforks 7.7K

Hyperscale S3-compatible object storage for AI workloads

Database Cloud Native Kubernetes+4

DuckDB

stars 40.2Kforks 3.6K

Fast in-process SQL analytics database, no server needed

Database Developer Tools Coding+3

Trino

stars 13.1Kforks 3.7K

High-performance distributed SQL query engine for big data

Database Data Visualization Developer Tools+3

MongoDB

stars 28.5Kforks 5.8K

Popular open source NoSQL document database for modern apps

Database Self Hosted Cloud Native+2

Directus

stars 37.2Kforks 4.9K

Wrap any SQL database with REST and GraphQL APIs and an admin UI

Headless CMS API Development Tools API Infrastructure+5