Find Open Source Alternatives

AppFlowy

Open source alternative to Notion — AI-powered workspace for wikis, docs, and projects

Mattermost

Secure, self-hosted team messaging platform as an alternative to Slack

Penpot

Open source design and prototyping platform for cross-domain teams

Plausible Analytics

Lightweight and privacy-friendly web analytics — no cookies, fully GDPR compliant

Listmonk

High-performance, self-hosted newsletter and mailing list manager

Nextcloud

Self-hosted productivity platform with file storage, sharing, collaboration, and more

Jitsi Meet

Open source video conferencing solution that is secure and easy to deploy

NocoDB

Open source Airtable alternative — turns any database into a smart spreadsheet

Chatwoot

Open source customer engagement platform — alternative to Intercom for live chat and support

Excalidraw

Virtual whiteboard for sketching hand-drawn diagrams and wireframes

Twenty CRM

Modern open source CRM — a beautiful alternative to Salesforce and HubSpot

Cal.com

Open source scheduling infrastructure — the Calendly alternative for individuals and teams

Docmost

Open source collaborative wiki and documentation software — Notion and Confluence alternative

Plane

Open source project tracking tool — alternative to Jira and Linear with issues, cycles, and modules

Hoppscotch

Open source API development ecosystem — lightweight Postman alternative with real-time collaboration

Infisical

Open source secret management platform — alternative to HashiCorp Vault for teams

Appwrite

Open source backend platform with auth, databases, storage, functions, and messaging

Supabase

Open source Firebase alternative with Postgres database, auth, storage, edge functions, and realtime

Formbricks

Open source survey and forms platform — Typeform alternative with in-app surveys and targeting

Trigger.dev

Open source background jobs framework — Zapier alternative for developers with code-first workflows

Lago

Open source metering and usage-based billing platform — alternative to Stripe Billing

OpenStatus

Open source monitoring and status page platform — alternative to Better Stack and Betterstack

Dub

Open source link management platform — Bitly alternative with analytics, branded links, and QR codes

Documenso

Open source document signing platform — DocuSign alternative with a beautiful signing experience

Rocket.Chat

Open source team communication platform — Slack alternative with channels, DMs, video calls, and federation

Focalboard

Open source project management tool — Trello/Monday alternative with kanban, table, and calendar views

Outline

Beautiful wiki and knowledge base for teams — Notion/Confluence alternative with real-time collaboration

BookStack

Simple, self-hosted wiki platform — Confluence alternative organized by books, chapters, and pages

Wiki.js

Powerful open source wiki engine with visual editor, Git sync, and dozens of auth providers

Syncthing

Continuous peer-to-peer file synchronization — decentralized Dropbox alternative with no cloud dependency

Baserow

Open source no-code database — Airtable alternative with tables, forms, and automations

Umami

Simple, fast, privacy-focused web analytics — Google Analytics alternative that respects user privacy

n8n

Fair-code workflow automation tool — Zapier alternative with 400+ integrations and visual editor

Bruno

Fast, Git-friendly API client — Postman alternative that stores collections in your filesystem

Continue

Open source AI code assistant — GitHub Copilot alternative that works with any LLM in VS Code and JetBrains

Tabby

Self-hosted AI coding assistant — GitHub Copilot alternative with local models and privacy

PocketBase

Open source backend in a single binary — Firebase alternative with auth, database, file storage, and admin UI

Uptime Kuma

Self-hosted monitoring tool — fancy uptime monitoring with status pages, notifications, and Docker support

Grafana

Open source observability platform — Datadog alternative for metrics, logs, and traces visualization

Discourse

Open source community discussion platform — modern forum with categories, trust levels, and rich integrations

Keycloak

Open source identity and access management — Auth0 alternative with SSO, LDAP, and social login

Authentik

Open source identity provider — Auth0 alternative with modern UI, flows, and application proxy

Meilisearch

Lightning-fast open source search engine — Algolia alternative with typo tolerance and faceted search

Typesense

Fast, typo-tolerant search engine — Algolia alternative optimized for instant search-as-you-type

Bitwarden

Open source password manager — 1Password alternative with browser extensions, mobile apps, and team vaults

Vaultwarden

Lightweight Bitwarden-compatible server in Rust — lightweight 1Password alternative for self-hosting

Medusa

Open source headless commerce engine — Shopify alternative for developers with modular architecture

Saleor

Open source headless commerce platform — Shopify alternative with GraphQL API and multi-channel support

Highlight.io

Open source full-stack monitoring — Sentry alternative with error tracking, session replay, and logging

Coolify

Open source Heroku/Vercel alternative — self-hosted PaaS for deploying apps, databases, and services

Dokku

The smallest PaaS implementation — Heroku alternative powered by Docker with git push deployment

Metabase

Open source business intelligence tool — Power BI alternative with SQL and no-code query builder

Apache Superset

Modern data exploration and visualization platform — Power BI alternative with rich charts and dashboards