Top Open Source Alternatives to Popular SaaS Apps

Discover open-source apps categorized by the SaaS tools they replace. Find high-quality, free alternatives to your favorite software.

Godot

Godot is an open-source game engine for creating 2D and 3D games, featuring a flexible architecture and a rich set of tools.

11 Open Source Alternatives to Godot

Notion

A versatile workspace tool that combines note-taking, project management, and collaboration features into a single platform.

11 Open Source Alternatives to Notion

Unity

A cross-platform game engine widely used for creating both two-dimensional and three-dimensional video games and simulations.

11 Open Source Alternatives to Unity

ClickUp

ClickUp is a comprehensive productivity platform designed to help teams manage tasks, projects, and workflows in one centralized location.

10 Open Source Alternatives to ClickUp

Construct

Construct 3 is a game engine designed for both beginners and experienced developers, offering powerful tools to bring game ideas to life.

10 Open Source Alternatives to Construct

GameMaker Studio

GameMaker Studio is a versatile game development platform designed for creating 2D games, catering to both beginners and experienced developers.

10 Open Source Alternatives to GameMaker Studio

RPG Maker

A series of game development software that allows users to create their own role-playing video games with minimal programming knowledge.

10 Open Source Alternatives to RPG Maker

Coda

Coda is a versatile cloud-based platform that combines the functionality of documents, spreadsheets, and applications into a single collaborative workspace.

9 Open Source Alternatives to Coda

Confluence

Confluence is a collaborative workspace platform developed by Atlassian that enables teams to create, organize, and share content.

9 Open Source Alternatives to Confluence

Evernote

Note-taking and organization software that helps users capture ideas, manage tasks, and organize information across devices.

9 Open Source Alternatives to Evernote

Monday

A cloud-based work operating system that enables teams to manage projects, workflows, and everyday tasks with customizable boards and automation.

9 Open Source Alternatives to Monday

Airtable

Cloud-based platform for creating and sharing relational databases, ideal for project management and collaboration.

8 Open Source Alternatives to Airtable