Best Open-Source Databases & Backend | open-source.storeAll categoriesDatabases & Backend
Backend services, database clients, managed hosting, caching, and search systems.
57 tools found 
Supabase OSS
Self-host Supabase OSS for a private Postgres backend with auth, storage, and realtime APIs under Apache-2.0, eliminating cloud vendor lock-in.
Apache-2.0Backend-as-a-Service

Redis
Self-host Redis as an in-memory cache, message broker, and vector store to retain complete data sovereignty and avoid Redis Enterprise subscription costs.
77.1kLinuxDockermacOS1d ago BSD-3-ClauseCaching & In-Memory

NocoDB
NocoDB turns existing SQL databases into collaborative spreadsheets with kanban views and web forms as a self-hosted alternative to AppSheet.
65.4kWebDockerLinux1d ago AGPL-3.0No-Code Databases

Meilisearch
Meilisearch is an open-source search engine replacing Algolia with instant typo-tolerant search, hybrid vector querying, and full data privacy.
59.8kLinuxmacOSWindowstoday MITSearch Engines

Appwrite
Appwrite is a self-hosted Backend-as-a-Service alternative to Firebase, providing auth, databases, functions, and storage via a single Docker stack.
57.9kLinuxmacOSWindowstoday BSD-3-ClauseBackend-as-a-Service

ClickHouse
ClickHouse is an open-source columnar database for real-time analytics, running sub-second SQL queries across billions of rows on self-hosted hardware.
Apache-2.0Managed Databases
Go & gRPC engineer · founder of EasyP
PromotedGo, gRPC and Protobuf done right, LLM agents in production, and the hard parts of shipping a first product.
GogRPCProtobufLLM agents

TiDB
TiDB is a distributed MySQL-compatible database that replaces sharded clusters with native horizontal scaling and real-time columnar HTAP analytics.
Apache-2.0Managed Databases

Keycloak
Keycloak is an open-source alternative to Okta and Auth0 that runs on your own infrastructure, providing self-hosted OIDC, SAML, and user federation.
Apache-2.0Authentication & Identity

HashiCorp Vault
HashiCorp Vault replaces static secret sprawl and SaaS credential hubs with self-hosted dynamic credentials, PKI, and centralized data encryption.
Authentication & Identity

CockroachDB
CockroachDB replaces proprietary distributed databases like Cloud Spanner with a self-hosted, PostgreSQL-compatible engine built for high availability.
BSL-1.0Managed Databases

JumpServer
JumpServer replaces proprietary PAM suites like CyberArk with a self-hosted bastion gateway featuring browser-based access and automated password rotation.
GPL-3.0Authentication & Identity

Dragonfly
Dragonfly is an in-memory caching store replacing Redis and Memcached with a multi-threaded architecture that maximizes hardware throughput on Linux.
BSL-1.0Caching & In-Memory
macOS
1d ago
BSD-3-ClauseCaching & In-Memory
today
Apache-2.0Authentication & Identity
today
Apache-2.0Managed Databases