Open Apps
Curated open-source app directory for every need
What is Open Apps? Complete Overview
Open Apps is a curated directory of high-quality open-source applications that serve as alternatives to popular SaaS tools. The platform helps users discover free, open-source software across various categories, all vetted by experienced technologists. It targets developers, tech professionals, and businesses looking to reduce costs while maintaining quality by switching from proprietary SaaS solutions to open-source alternatives. The directory organizes apps by category (AI, BaaS, DevOps, Productivity) and by SaaS alternatives they replace (Cursor, WordPress, Datadog, Tableau), making it easy to find suitable replacements for specific needs. Each listing includes detailed information about the open-source solution and what commercial product it can replace.
Open Apps Interface & Screenshots

Open Apps Official screenshot of the tool interface
What Can Open Apps Do? Key Features
Curated Open-Source Directory
Open Apps provides a carefully selected collection of high-quality open-source applications across multiple categories. Each app is vetted by experienced technologists for performance, reliability, and maintenance status, saving users time in their search for open-source alternatives.
SaaS Alternative Finder
The platform helps users find open-source replacements for specific commercial SaaS products they currently use. Whether looking for alternatives to Cursor, WordPress, Datadog or Tableau, Open Apps maps commercial products to their best open-source counterparts.
Category-Based Discovery
Apps are organized into intuitive categories like AI, Backend as a Service, DevOps, and Productivity. This structure helps users explore solutions within their specific domain or discover new tools they might not have considered.
Featured Apps Highlight
Open Apps showcases particularly notable open-source solutions, like Ghost (CMS alternative), Posthog (analytics), Convex (backend platform), Zed (code editor), and AnythingLLM (AI application), helping users quickly identify high-quality options.
Technologist-Reviewed
All listed applications undergo review by experienced technologists who evaluate them for quality, performance, and viability. This vetting process ensures users only discover reliable open-source options worth their time to implement.
Best Open Apps Use Cases & Applications
Finding CMS Alternatives
A blogger looking to move from WordPress to a more streamlined platform can discover Ghost through Open Apps, gaining a modern, open-source CMS optimized for publishing without licensing fees.
Replacing Analytics Tools
A startup needing product analytics but wanting to avoid Mixpanel's costs can find PostHog through Open Apps, implementing a full-featured open-source alternative that provides similar insights into user behavior.
Backend Development Solutions
Developers building applications who want to avoid Firebase's proprietary lock-in can discover Convex, an open-source BaaS platform with TypeScript-based APIs for data management.
AI Development Tools
Teams seeking privacy-focused AI solutions can find AnythingLLM through Open Apps, an all-in-one application supporting various LLMs and document types while keeping data secure.
How to Use Open Apps: Step-by-Step Guide
Browse the homepage to view featured open-source apps or use the category navigation to explore specific types of solutions.
If looking to replace a specific SaaS product, check the 'Top Open Source Alternatives To SaaS' section to find recommended substitutes.
Click on any app listing to view detailed information about the open-source solution, including its features and what commercial product it replaces.
Visit the project's official website or repository (linked from the Open Apps listing) to download or learn more about implementation.