Open Source Software Alternatives

Bonjourr is a minimalist and lightweight startpage inspired by iOS for Chrome, Firefox, Edge, and Safari. Customize backgrounds, links, and widgets to launch your day beautifully.

Self-hosted file sharing and management platform with file transfers, pastes, collections, and a REST API.

Bitwarden infrastructure/backend (API, database, Docker, etc).

BigBlueButton is an open-source web conferencing platform built for online learning. Whiteboard, breakout rooms, and live polls make classes feel real for remote and hybrid teams.

Self-hostable PaaS for deploying full-stack apps and databases with zero downtime, auto HTTPS, and Docker support.

Lightweight self-hosted server monitoring hub with historical data, Docker stats, and configurable alerts.

Modern and easy to use SQL client for MySQL, Postgres, SQLite, SQL Server, and more. Linux, MacOS, and Windows.

Free, open source turn-based strategy game set in a high-fantasy world, with single-player campaigns and online multiplayer.

The open source Zapier alternative. Build workflow automation without spending time and money.

Browser extension that automates repetitive web tasks by visually connecting blocks — no code required.

Open source identity provider and SSO solution that replaces Auth0 and Okta with a self-hostable, flexible authentication platform.

A self-hosted personal knowledge base that turns markdown notes into an AI-augmented knowledge graph with semantic search and wiki synthesis.

Open source Notion alternative that brings projects, wikis, and teams together with AI while keeping you in control of your data.

Apache Airflow is a platform to programmatically author, schedule, and monitor complex workflows. Build pipelines as code and orchestrate your data jobs with rich observability.

Local-first, end-to-end encrypted alternative to Notion that lets you build a private knowledge base, docs, and tasks with no central server.

A universal habit and tracking dashboard tailored for Raspberry Pi and Docker with a modern React frontend.

Turn your Android phone into a 4K webcam via USB or WiFi with an open-source desktop client and mobile app.

Offline-first, self-hostable note-taking app with rich text, tags, attachments, and cross-device sync via Docker.

Cap is an open-source Loom alternative for beautiful, shareable screen recordings. Record in 4K, get instant share links, and keep full content ownership on your own infrastructure.

Open-source scheduling infrastructure — a self-hostable alternative to Calendly for booking meetings and appointments.

Open source AI-powered omnichannel customer service platform that combines live chat, ticketing, and team collaboration as an alternative to Slack, Zendesk, Intercom, and HubSpot.

Simple OTP app for desktop and mobile.

Open-source web analytics platform with SEO keyword and search performance reporting.

Open-source Matrix client for secure, decentralized messaging, voice, and video — runs on your own server.

Free, browser-based invoice generator with live PDF preview, customizable templates, multi-currency support, and no sign-up required.

Free, open-source backup software that stores encrypted, incremental backups to cloud storage and remote servers.

draw.io is a JavaScript, client-side editor for general diagramming.

A free and open-source ERP and CRM platform for businesses, foundations, and freelancers of any size.

Open Source Alternative to Vercel, Netlify and Heroku.

Open-source collaborative wiki and documentation platform, an alternative to Confluence and Notion.

Open-source customer engagement. Automate transactional and marketing messages across email, SMS, mobile push, WhatsApp, Slack, and more 📨

Open source community forum platform combining long-form discussion, real-time chat, and strong moderation. Self-host it or use managed hosting.

Source-available headless CMS and backend that turns any SQL database into REST and GraphQL APIs with a no-code admin Studio.

Self-hostable project management for dev teams: issues, cycles, modules, pages, and analytics. Go + React alternative to Jira and Linear.

Decentralized private messenger using email infrastructure for secure, end-to-end encrypted communication.

Open source photography workflow application and raw developer for organizing, editing, and exporting large photo libraries.

DBeaver is a free, universal database tool and SQL client for developers and analysts. Connect to MySQL, PostgreSQL, SQLite, Oracle, and dozens more with a powerful open-source IDE.

Open-source GPS track manager with 3D topography visualization for outdoor activities.

CryptPad is an end-to-end encrypted, zero-knowledge collaborative office suite. Write, edit, and share documents, sheets, and code with confidence that servers never read them.

Self-hosted SEO monitoring dashboard with Google Search Console, a 2,000-page site crawler, Core Web Vitals, and a built-in MCP server for AI agents.

Self-hosted recipe, pantry, and cooking tracker with a PWA and native Android app — no telemetry, no cloud lock-in.

Open-source, agentic-first CRM with a built-in research agent that books follow-ups, enriches contacts, and keeps your pipeline up to date.

Commento is a fast, privacy-focused commenting platform for websites. No tracking, no ads, lightweight embed — a respectful Disqus alternative for blogs and documentation sites.

Self-hosted RSS reader inspired by Google Reader — organize, read and subscribe to your favorite feeds on your own server.

Collabora Online is a powerful open-source office suite built on LibreOffice. Edit documents, sheets, and slides together in self-hosted environments with full file compatibility.

Open source, local-first Slack and Notion alternative that puts you in control of your data with offline support and end-to-end encryption.

Open source Calendly alternative that runs on Cloudflare’s free tier with Google Calendar and Outlook sync.

A beautiful open source clipboard manager for macOS.

Self-hostable social media scheduler for content creators and small teams with distributed job processing.

Database diagrams editor that allows you to visualize and design your DB with a single query.

Captura is a Windows screen recorder that captures screen, audio, cursor, mouse clicks, and keystrokes. Lightweight, configurable, and perfect for tutorials, demos, and bug reports.