What's the difference between "open source" and "source-available" here?

Open source means an OSI-approved license — MIT, Apache 2.0, GPL, and similar — so you can run, modify, and redistribute it freely. Source-available means the code is visible but under a license, like BSL or a custom "fair source" license, that restricts commercial use or redistribution. We label each listing with which one it actually is, since the distinction has real licensing consequences.

Is "open source" the same as "free"?

Not necessarily. The license is free to use in the sense that you can self-host at no licensing cost, but most projects here also sell a hosted or managed version, and self-hosting has its own real cost in infrastructure and maintenance time. Check each listing for what's actually free versus what's the paid tier.

How do you judge whether a project is actively maintained versus abandoned?

Recent commit activity, release cadence, and issue response time — not star count. A project with a large star count from years ago can be effectively dead, while a smaller, newer one might be actively maintained. Verify directly on the project's repository before depending on it.

Open Source Databases

Compare Open Source products across curated subcategories and trusted providers

701 products · 5 subcategoriesOpen Source resources

Showing 1–12 of 701

Active filtersOpen source Clear all

1store

by Peng

NoSQL data store using the SEASTAR framework, compatible with Redis

Database AdministrationOpen Source DatabasesOpen Source

7days Golang

by Dai Jie

7 days golang programs from scratch (web framework Gee, distributed cache GeeCache, object relational mapping ORM framework GeeORM, rpc framework GeeRPC etc) 7天用Go动手写/从零实现系列

Database CachingCache & Key-Value StoresOpen Source

AD_Miner

by AD-Miner

AD Miner is an Active Directory audit tool that leverages cypher queries to crunch data from the #Bloodhound graph database to uncover security weaknesses

Graph DatabaseGraph DatabasesOpen Source

AI-Paper-Collector

by MLNLP

MLNLP社区用来更好进行论文搜索的工具。Fully-automated scripts for collecting AI-related papers

Onsite SearchSearch & Full-Text DatabasesOpen Source

AI-Search-Hub

by minsight-ai-info

One Query. All Search Skill. 聚合 Gemini、Grok、豆包、元宝等平台原生 AI 搜索能力，免费获取科技趋势、行业舆情、热点追踪、旅行规划、日常问题统一接进自己的 Agent 与工作流，指定链接免费爬取

Knowledge Graph ManagementGraph DatabasesOpen Source

ANGRYsearch

by DoTheEvolution

Linux file search, instant results as you type

Onsite SearchSearch & Full-Text DatabasesOpen Source

AWS Lambda Redshift Loader

by Awslabs

An Amazon Redshift Database Loader written for AWS Lambda

Database AdministrationOpen Source DatabasesOpen Source

AWS Secretsmanager Caching Python

by Aws

The AWS Secrets Manager Python caching client enables in-process caching of secrets for Python applications.

Database CachingCache & Key-Value StoresOpen Source

AWS Workload Credentials Provider

by Aws

The AWS Workload Credentials Provider (formerly the AWS Secrets Manager Agent) is a client-side solution that helps you standardize how you consume credentials from AWS services across your compute environments.

Database CachingCache & Key-Value StoresOpen Source