Open-source robotic process automation (RPA) platforms offer a cost-effective way to explore and implement automation solutions. Here are some of the most popular open-source RPA tools and resources to consider:
1. TagUI

Description: A lightweight open-source RPA tool that can automate tasks using plain-language scripting.
Key Features:
Simple syntax for non-developers.
Supports automation for web, desktop, and command-line applications.
Integrates with Python for advanced functionality.
Use Case: Automating browser-based tasks like form filling and data scraping.
Website: TagUI

2. OpenBots

Description: A completely free and open-source RPA platform designed for businesses to deploy automation without paying for bot licenses.
Key Features:
Supports creating automation scripts for web, desktop, and APIs.
Integrates with enterprise tools and platforms.
Includes orchestration and scheduling tools.
Use Case: Suitable for small businesses to build scalable RPA solutions.
Website: OpenBots

3. Robot Framework

Description: A generic automation framework for test automation and RPA.
Key Features:
Extensible with Python libraries for custom automation.
Built-in support for web and desktop automation.
Large community and plugins for additional functionality.
Use Case: Ideal for combining RPA with test automation projects.
Website: Robot Framework

4. Automagica

Description: An open-source RPA tool that simplifies the development of automation scripts.
Key Features:
Easy-to-use Python-based framework.
Automates web and desktop tasks.
Works well for quick prototyping.
Use Case: Suitable for developers who prefer Python for building automation solutions.
Website: Automagica (The core has shifted towards premium, but older open-source versions are still available on GitHub).

5. Taskt

Description: A free, open-source RPA tool for Windows.
Key Features:
Simple drag-and-drop interface.
Pre-built commands for common automation tasks.
Active GitHub repository for updates and support.
Use Case: Automating desktop tasks and workflows without coding.
Website: Taskt

6. SikuliX

Description: An open-source automation tool that works based on image recognition.
Key Features:
Automates GUI interactions on any application using screenshots.
Supports scripting with Python or Java.
Use Case: Best for automating tasks in applications that don't offer APIs or accessibility via traditional RPA tools.
Website: SikuliX

7. pyRPA

Description: A lightweight Python-based RPA framework.
Key Features:
Automates web, desktop, and API tasks.
Python scripting for customization.
Use Case: Great for developers who want to leverage Python for automation.
Website: pyRPA GitHub

8. Bonita

Description: Open-source workflow automation software that integrates RPA functionalities.
Key Features:
Allows workflow design with drag-and-drop tools.
Supports integration with external systems and APIs.
Use Case: Suitable for combining RPA with broader business process management (BPM).
Website: Bonitasoft