31 Open Source Projects Every DevOps Engineer MUST Know
1. Coolify: self-host your apps with a Heroku-like experience on your own VPS.
github.com/coollabsio/coolif…
2. Nextcloud: private file storage, collaboration, and team productivity stack.
github.com/nextcloud/server
3. n8n: automate APIs, alerts, and workflows without writing glue code.
github.com/n8n-io/n8n
4. Taubyte: deploy event-driven functions globally at the edge.
github.com/taubyte/tau
5. PocketBase: lightweight backend with auth, database, and realtime in one binary.
github.com/pocketbase/pocket…
6. Dokku: deploy apps with git push on a single server.
github.com/dokku/dokku
7. Appwrite: full backend server with auth, database, storage, and functions.
github.com/appwrite/appwrite
8. Supabase: Postgres-based backend with auth and realtime APIs.
github.com/supabase/supabase
9. Postiz: AI-powered social media scheduling platform.
github.com/gitroomhq/postiz-…
10. Tolgee: developer-friendly localization and translation management.
github.com/tolgee/tolgee-pla…
11. MedusaJS: headless commerce engine for custom eCommerce systems.
github.com/medusajs/medusa
12. Formbricks: privacy-first in-product surveys and feedback collection.
github.com/formbricks/formbr…
13. Hanko: passwordless authentication using WebAuthn and passkeys.
github.com/teamhanko/hanko
14. ToolJet: low-code platform for building internal tools fast.
github.com/ToolJet/ToolJet
15. Novu: unified notification infrastructure for email, SMS, push, and more.
github.com/novuhq/novu
16. Flipt: Git-managed feature flags and gradual rollouts.
github.com/flipt-io/flipt
17. PostHog: self-hosted product analytics and experimentation suite.
github.com/PostHog/posthog
18. Dub: open-source branded link shortener with analytics.
github.com/dubinc/dub
19. Mattermost: secure, self-hosted team messaging platform.
github.com/mattermost/matter…
20. Mautic: open-source marketing automation and campaign management.
github.com/mautic/mautic
21. Wekan: simple self-hosted Kanban board for task management.
github.com/wekan/wekan
22. Cal. com: open-source scheduling and booking platform.
github.com/calcom/cal.com
23. Plausible: privacy-focused website analytics without cookies.
github.com/plausible/analyti…
24. Fathom (Lite): simple privacy-first web analytics alternative.
github.com/usefathom/fathom
25. Trieve: open-source semantic search engine using vector embeddings.
github.com/trieveai/trieve
26. Composio: integration layer for connecting third-party APIs easily.
github.com/composiohq/compos…
27. LLMWare: framework for building LLM-powered applications.
github.com/llmware-ai/llmwar…
28. Airbyte: open-source data integration and ELT platform.
github.com/airbytehq/airbyte
29. AppFlowy: local-first open-source workspace alternative to Notion.
github.com/AppFlowy-IO/AppFl…
30. Plane: open-source project and issue management tool.
github.com/makeplane/plane
31. NocoDB: turn any SQL database into an Airtable-style interface.
github.com/nocodb/nocodb
You may not use all of them.
But knowing these tools exist can save you months of rebuilding what open source already solved.