Open Source RPA: UI.Vision, OpenRPA and Robot Framework vs. UiPath

UI.Vision, OpenRPA and Robot Framework compared: what free RPA really delivers and where operating costs eat up the savings.

Hand-drawn sketch: a robotic arm holding an open padlock

Open source RPA with UI.Vision, OpenRPA or Robot Framework costs no license fees, but shifts the effort onto your own team: all three projects are freely usable in their own way, yet operation, maintenance and troubleshooting are entirely up to you without enterprise support. UI.Vision RPA is licensed under the AGPLv3 or alternatively commercially, and is free for private and commercial use in unmodified form. OpenRPA is licensed under MPL-2.0 and remains combinable with an optional cloud orchestration component called OpenFlow as well as commercial support. Robot Framework is licensed under Apache-2.0 and is primarily a test automation framework that can also be used for RPA tasks. As of: August 2026.

What does UI.Vision RPA actually do?

UI.Vision positions itself as a Selenium-IDE-compatible tool with a visual web macro recorder and a JavaScript API for DOM and image search, screenshots, tab control and CSV processing. The software runs as a browser extension for Chrome, Firefox and Edge and, according to its own repository, can be used entirely free of charge for private and commercial purposes as long as you use it unmodified or embed it unmodified into other applications. If you want to modify the source code yourself or integrate it into a product you don't want to distribute under the AGPL, you need the commercial license. For browser-based, recurring tasks such as reading out portals or filling in forms, this is a low entry point. Details on features and licensing model can be found in the UI.Vision RPA repository on GitHub.

What sets OpenRPA apart from a pure browser tool?

According to its own repository, OpenRPA covers a broader range than UI.Vision, including SAP and legacy system automation, image recognition, OCR and the management of multiple robots via the separate OpenFlow component. The core software is freely available under MPL-2.0; anyone wanting to orchestrate multiple robots centrally additionally needs an OpenFlow account, whose pricing model is not described in detail in the repository. The vendor offers commercial support separately via its own platform. For Windows-heavy environments with older applications that go beyond pure browser automation, this is the more obvious candidate of the two tools. Source: the OpenRPA repository on GitHub.

What is Robot Framework suited for, and what isn't it?

According to its own description, Robot Framework is primarily a generic open source framework for acceptance testing and test-driven development that also covers RPA use cases, but was not primarily designed for them. It is licensed under Apache-2.0, while documentation and additional material are under Creative Commons terms, and is maintained by the non-profit Robot Framework Foundation. The practical difference from UI.Vision and OpenRPA: Robot Framework is keyword-driven and text-based rather than recording-based, which requires development experience but in turn allows cleanly versionable, testable automations. For companies without their own development capacity, the entry barrier is noticeably higher than with UI.Vision. Details can be found in the Robot Framework repository on GitHub.

Where does operating overhead eat the license savings back up?

With all three tools, the typical UiPath license fee is eliminated, but you take on hosting, updates, error handling and scaling yourself, which is cited in public comparisons as a typical disadvantage of open source RPA tools compared to commercial vendors: a steeper learning curve, less training material and an update speed dependent on community contributions. UiPath, in return, comes with a guided interface, ready-made templates and structured enterprise support, for which you pay ongoing license costs in return. So weigh realistically whether the license saved is worth the additional internal operating load, or whether the effort only pays off for a few clearly delimited processes. NordFlux relies on both UiPath and open source automation in customer projects depending on requirements, depending on how much operating responsibility a company wants to bear itself.

Frequently asked questions about open source RPA

Is UI.Vision RPA really free for commercial use?

Yes, as long as you use the software unmodified or embed it unmodified, it is, according to the license text, free of charge for private and commercial purposes. Only those who modify the source code or integrate it into a closed-source product need the commercial license.

Do I absolutely need OpenFlow for OpenRPA?

No, according to the repository, OpenFlow is an optional backend component for managing multiple robots. For operating a single robot, the core software alone is sufficient.

Can Robot Framework fully replace UiPath in a classic RPA project?

For development-savvy teams with test automation experience this is possible, for business departments without their own development capacity generally not. Robot Framework is text- and keyword-based rather than recording-based, which requires a different way of working than with UiPath or UI.Vision.

What is the biggest hidden cost factor in open source RPA?

The biggest factor is usually the internal operating time for updates, error handling and scaling, which is covered within the license price for commercial vendors. Anyone who does not plan for this effort often significantly underestimates the actual total cost of open source RPA.

Simon Glowik, founder of NordFlux
About the author

Founder of NordFlux. Spent four years automating processes at enterprise scale at Dräger, and now brings that depth to the mid-market — pragmatic and with full data sovereignty.

Certifications

  • Microsoft certified — PL-900 and AZ-900
  • UiPath certified — Automation Developer Associate
  • UiPath zertifiziert — Automation Developer Associate
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