The directory of
open source SaaS
that actually ship.
Hand-curated alternatives to the SaaS you pay too much for. Every project is tested where possible and reviewed for production-readiness.
Browse by category
Every category is hand-organized. New categories added as the ecosystem grows.
Databases
PostgreSQL, MySQL, MongoDB, and more — the engines under your stack.
Analytics
Privacy-first web and product analytics. No cookie banners, no $100K/yr enterprise plans.
CRM & Sales
Customer relationship management, sales pipelines, and contact databases you actually own.
Communication
Team chat, video, async standups, and internal comms that respect your data.
Project Management
Issue trackers, kanban boards, and project planning — no per-user fees.
CMS & Content
Headless CMS, publishing platforms, and content infrastructure for blogs to product catalogs.
Email Marketing
Newsletters, drip campaigns, and transactional email without per-subscriber pricing.
Authentication & Identity
SSO, OAuth, MFA, and identity providers that you can self-host in an afternoon.
Search
Full-text and typo-tolerant search engines that scale from docs to product catalogs.
Storage & File Sync
Self-hosted file sync, S3-compatible object storage, and document collaboration.
Automation & Workflows
Visual workflow builders, schedulers, and event routers — Zapier without the per-task fees.
Monitoring & Observability
Uptime checks, metrics, traces, log aggregation, and observability you can self-host.
Code Hosting & Review
Self-hosted Git platforms, code review, and CI for teams that want to own their source.
Business Intelligence
SQL-first BI tools, dashboards, and analytics warehouses that connect to any data source.
Latest additions
Newly curated and reviewed.
Ackee
by Ackee
Lightweight, self-hosted, cookieless analytics for techies. GraphQL API, modern UI, no JavaScript required for visitors. The minimal analytics tool.
Activepieces
by Activepieces
Activepieces is an open source no-code automation platform. 300+ integrations, visual flow builder, TypeScript pieces, self-hostable, the modern open source Zapier/Make alternative.
Apache Airflow
by Apache Foundation
Apache Airflow is the original open source workflow orchestrator. Python-defined DAGs, rich UI, 1000+ providers, scalable execution, used by Airbnb, Google, Amazon, and every data team.
Apache Hop
by Apache Foundation
Apache Hop is an open source data orchestration tool. Visual pipeline designer, multi-engine (Spark, Flink, Google Dataflow), metadata injection, Hop GUI for developers. The Pentaho successor.
Apache Solr
by Apache Solr
Apache Solr is the original open source search server built on Apache Lucene. Battle-tested since 2004, full-text search, faceted search, geospatial, ML model upload, vector search (recent).
Appsmith
by Appsmith
Self-hostable low-code platform with 45+ data source integrations. Drag-and-drop UI, JS everywhere, granular permissions. The most flexible Retool alternative.
Built different.
Other directories list every GitHub repo with 50+ stars and call it curation. We don't. Every project listed here is hand-vetted for production-readiness, security, and active maintenance.
Hand-curated
No auto-approval. Every project is reviewed by a human editor before it ships.
Security-scored
Every project gets a security score from 0–100. We tell you when something is risky.
One-command install
Every listing has a copy-pasteable install command. Self-host in 5 minutes.