Find Open Source Alternatives
Ditch paid software. Discover open source tools that actually work.
80+
Alternatives
25
Categories
2019k+
GitHub Stars Tracked
Featured Projects
Excalidraw
Virtual whiteboard for sketching hand-drawn diagrams and wireframes
Grafana
Open source observability platform for metrics, logs, and traces
Supabase
Open source Firebase alternative with Postgres, auth, and edge functions
Cal.com
Open source scheduling infrastructure — the Calendly alternative for individuals and teams
Apache Superset
Modern data exploration and visualization platform
Mattermost
Secure, self-hosted team messaging platform as an alternative to Slack
Vaultwarden
Lightweight Bitwarden-compatible server in Rust
Meilisearch
Lightning-fast open source search engine — Algolia alternative
Discourse
Open source community discussion platform
Uptime Kuma
Self-hosted monitoring tool with status pages and notifications
PocketBase
Open source backend in a single binary — Firebase alternative
n8n
Fair-code workflow automation with 400+ integrations
Syncthing
Continuous peer-to-peer file synchronization
Appwrite
Open source BaaS — Firebase alternative with auth, database, storage
NocoDB
Open source Airtable alternative — turns any database into a smart spreadsheet
Nextcloud
Self-hosted productivity platform with file storage, sharing, collaboration, and more
Plausible Analytics
Lightweight and privacy-friendly web analytics — no cookies, fully GDPR compliant
Outline
Beautiful wiki and knowledge base for teams
Keycloak
Open source identity and access management — Auth0 alternative
Bitwarden
Open source password manager with browser extensions and team vaults
Medusa
Open source headless commerce engine — Shopify alternative
Coolify
Open source Heroku/Vercel alternative — self-hosted PaaS
Metabase
Open source business intelligence with SQL and no-code query builder
Hoppscotch
Open source API development ecosystem — Postman alternative
Dub
Open source link management — Bitly alternative
Twenty CRM
Modern open source CRM — a beautiful alternative to Salesforce and HubSpot
Jitsi Meet
Open source video conferencing solution that is secure and easy to deploy
Dokku
The smallest PaaS — Heroku alternative with git push deployment
Plane
Open source project management for teams
Authentik
Open source identity provider with modern UI and flows
Umami
Simple, fast, privacy-focused web analytics
AppFlowy
Open source alternative to Notion — AI-powered workspace for wikis, docs, and projects
BookStack
Simple, self-hosted wiki platform organized by books, chapters, and pages
Continue
Open source AI code assistant for VS Code and JetBrains
Bruno
Fast, Git-friendly API client — Postman alternative
Chatwoot
Open source customer engagement platform — alternative to Intercom for live chat and support
Listmonk
High-performance, self-hosted newsletter and mailing list manager
Tabby
Self-hosted AI coding assistant with local models
Rocket.Chat
Open source team communication platform
Typesense
Fast, typo-tolerant search engine — Algolia alternative
Penpot
Open source design and prototyping platform for cross-domain teams
Saleor
Open source headless commerce platform with GraphQL API
Infisical
Open source secrets management platform
Wiki.js
Powerful open source wiki engine with visual editor and Git sync
Documenso
Open source DocuSign alternative
Trigger.dev
Open source background jobs framework for TypeScript
Formbricks
Open source survey platform — Typeform alternative
Baserow
Open source no-code database — Airtable alternative
Lago
Open source metering and usage-based billing
OpenStatus
Open source monitoring and status page platform
Highlight.io
Open source full-stack monitoring — error tracking, session replay, logging
Focalboard
Open source project management tool with kanban, table, and calendar views
Docmost
Open source collaborative wiki and documentation software — Notion and Confluence alternative
Top Projects
Excalidraw
Virtual whiteboard for sketching hand-drawn diagrams and wireframes
Supabase
Open source Firebase alternative with Postgres, auth, and edge functions
AppFlowy
Open source alternative to Notion — AI-powered workspace for wikis, docs, and projects
Syncthing
Continuous peer-to-peer file synchronization
Grafana
Open source observability platform for metrics, logs, and traces
Hoppscotch
Open source API development ecosystem — Postman alternative
Browse by Category
Analytics
3 open source · 1 proprietary
Authentication
3 open source · 1 proprietary
Automation
3 open source · 1 proprietary
Backend-as-a-Service
3 open source · 1 proprietary
Billing
2 open source · 1 proprietary
Business Intelligence
2 open source · 1 proprietary
CRM
6 open source · 4 proprietary
Cloud Storage
3 open source · 1 proprietary
Communication
4 open source · 2 proprietary
Community
2 open source · 1 proprietary
Design
2 open source · 2 proprietary
Developer Tools
4 open source · 3 proprietary
Documents
3 open source · 2 proprietary
E-Commerce
2 open source · 1 proprietary
Email Marketing
2 open source · 1 proprietary
Error Tracking
2 open source · 1 proprietary
Forms & Surveys
2 open source · 1 proprietary
Hosting & Deployment
2 open source · 2 proprietary
Link Management
3 open source · 1 proprietary
Monitoring
3 open source · 2 proprietary
Note-Taking
5 open source · 2 proprietary
Password Management
2 open source · 1 proprietary
Project Management
8 open source · 6 proprietary
Scheduling
2 open source · 2 proprietary
Search
2 open source · 1 proprietary
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