Arduino Cloud Editor vs Theia IDE

Arduino Cloud Editor lets users read, edit, and verify code for Arduino Cloud projects in a browser, including projects set up through Arduino Cloud. Its experimental AI Assistant helps write sketch code and is included across Cloud plans, with different monthly interaction limits. The Free plan costs nothing and includes two Things, five variables per Thing, 25 compilations per day, and 30 AI interactions per month. Annual plan prices listed are $72 a year for Maker, $1,000 a year for Team, and $20 a year for School; Enterprise has no listed price. Physical board connections on Windows, macOS, and Linux require the Arduino Cloud Agent. ChromeOS can create and upload sketches, though board support is limited to compatible boards. Arduino Cloud supports remote code uploads and dashboard sharing with viewer or editor access. Amazon Alexa voice control is available, and the School plan lists Google Classroom integration. Arduino says plan features are subject to fair-use limits, including caps on variables, sketch storage, and sketch files. Maker is intended for personal use; business and school users are directed to corresponding plans.

Theia IDE is an open-source, AI-native development environment for cloud and desktop, built on the Theia Platform. Users can select cloud, self-hosted or local AI models and create custom agents. It integrates official SDKs for providers including OpenAI, Anthropic and Google, and sends AI data to the provider the user chooses. The IDE supports VS Code extensions through Open VSX, though some Microsoft-proprietary extensions are unavailable and some extension API features may not work as expected. Language support uses the Language Server Protocol, including for Python, Java, JavaScript and C++. Workspace Trust puts untrusted folders in Restricted Mode and disables features that could execute code or read sensitive workspace content, but the project says this protection is still maturing. The IDE does not collect or transmit user activity, project details or code, though it can check for IDE and extension updates. The ready-to-use IDE is free at free. Its online demo is limited to 30 minutes per session. The modular Theia Platform can be used to build customized or white-labeled cloud and desktop IDEs and tools.