Find the best open source alternative
We curate open source tools that replace paid software. We manually review every listing for quality, active maintenance, and self-hosting support.
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1Panel
1Panel is an open source web-based Linux server management panel with one-click Docker deployments, SSL certificate automation, website hosting, and a built-in app store for self-hosted tools. GPL-3.0 licensed.
Mautic
An open-source marketing automation platform offering campaign building, email marketing, lead nurturing, and data sovereignty.
Langfuse
Langfuse is an open source LLM observability platform for tracing prompts, debugging AI chains, and monitoring inference costs in production. MIT licensed, self-hosted via Docker.
Turso
Turso is an open source edge database built on libSQL (a SQLite fork) that provides SQLite-compatible storage with multi-tenancy and replication for serverless applications. Apache-2.0 licensed (libSQL).
WorkAdventure
WorkAdventure is an open source virtual office platform where remote teams navigate a customizable 2D map, triggering proximity-based video calls as avatars walk near each other. AGPL-3.0 licensed.
Khoj
Khoj is an open source personal AI assistant that searches your notes, documents, and the web for research-grade answers. Self-hosted, AGPL-3.0 licensed, with no data sent to external servers.
SiYuan
SiYuan is a local-first, block-based personal knowledge management system with bidirectional links, full-text search, and end-to-end encrypted cloud sync. AGPL-3.0 licensed.
Better Auth
Better Auth is an open source TypeScript authentication framework with MFA, social sign-on, multi-tenancy, and session management for any TypeScript backend. A self-hosted alternative to Clerk and Auth0. MIT licensed.
Leon
An open-source personal assistant that can live on your server, built with Node.js, Python, and AI for automating tasks.
Cachet
Cachet is a self-hosted status page system for communicating service incidents and maintenance windows to customers and internal teams. MIT licensed, built on Laravel.
Supermemory
Supermemory is an open source memory API for AI applications that stores, indexes, and retrieves user-specific context so LLMs can deliver personalized responses across sessions. Apache-2.0 licensed.
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