Rocksi
Hannover, Germany
What it is
Rocksi is a free browser-based simulator for programming a 3D virtual robot with block coding. It is designed for learners at mixed levels, and its maker says it can be used in school classes, university lectures, workshops, and fairs. Rocksi runs in modern browsers including Firefox, Chrome, and Safari without a download or installation. The supported robot list includes Franka, Niryo NED, Sawyer, and Robotiq grippers. The software page lists Blockly and JS-Interpreter among its programming libraries, along with three.js, cannon-es, urdf-loaders, and xacro-parser for 3D functionality. The listed platforms also include iPhone, iPad, iOS, Android, Linux, and Windows. Rocksi is associated with Robokind Stiftung in Hannover, Germany, which the privacy policy identifies as the data controller. The policy says server logs may contain browser and operating system details, pages visited, visit time, and IP address, and are normally deleted within seven days. The project repository describes the software as MIT licensed.
For and against
For
- Runs in modern browsers without installation.
- Uses block coding for a 3D virtual robot.
- Maker describes use in classes, lectures, and workshops.
- Free plan requires no registration.
Against
- Server logs may include IP address and browsing details.
- No free trial is listed.
The verdict
Rocksi pairs browser access and block coding with support for several robot models and platforms. Its privacy policy describes what server logs may contain and their usual deletion period.
Who it suits
Rocksi may suit educators and learners looking for a browser-based, block-coding robot simulator, including use in classes, lectures, workshops, or fairs. It supports several named robot models and a range of listed platforms.
Plans and prices
Free
Completely free; no registration required
Read 8 Oct 2026 · rocksi.net
On the record
- 3D libraries
- The software page lists three.js, cannon-es, urdf-loaders and xacro-parser among its libraries.rocksi.net · read 8 Oct 2026
- Browser access
- Rocksi runs in modern browsers including Firefox, Chrome and Safari, without a download or installation.rocksi.net · read 8 Oct 2026
- Education
- The maker says Rocksi was created with education in mind and can be used in school classes, university lectures, workshops and fairs.rocksi.net · read 8 Oct 2026
- License
- The software page links to the Rocksi source code repository, which describes the project as distributed under the MIT license.github.com · read 8 Oct 2026
- Maker
- The imprint identifies Robokind Stiftung as the responsible organization and gives its address as Appelstraße 30, 30167 Hannover, Germany.rocksi.net · read 8 Oct 2026
- Privacy
- The privacy policy says server logs may include browser and operating system details, visited pages, visit time and IP address, and are normally deleted within seven days.rocksi.net · read 8 Oct 2026
- Privacy contact
- The privacy policy identifies Robokind Stiftung in Hannover, Germany, as the data controller.rocksi.net · read 8 Oct 2026
- Programming library
- The software page lists Blockly and JS-Interpreter among the libraries used for Rocksi.rocksi.net · read 8 Oct 2026
- Purpose
- Rocksi is a browser based simulator for programming a 3D virtual robot, similar to Scratch or Lego Mindstorms.rocksi.net · read 8 Oct 2026
- Robot models
- The homepage names Franka Emika and Niryo robots, while the software page also lists Sawyer and Robotiq grippers.rocksi.net · read 8 Oct 2026
- Support
- The homepage provides [email protected] for updates and feedback.rocksi.net · read 8 Oct 2026
