Impact

How Open Chiari is used, how well it works, and how anyone can take it over. Counted without cookies or personal data.

Use since launch

Launched November 4, 2026 · updated daily

Visits
15
3D models explored
10
Explain It links made
0
Study listings opened
0
Sites embedding the model
0

Totals only. Open Chiari never records who you are, what your Explain It note says, or which questions you print.

Quality report

Tested automatically on every update · last run November 5, 2026

CheckPhoneDesktopWhat it means
Accessibility100 / 100100 / 100Usable with screen readers, keyboards and low vision
Speed100 / 100100 / 100How fast pages load on a typical connection
Accessibility standardWCAG 2.2 AA · passed automated checksThe current W3C standard; also covers WCAG 2.1 AA, the level in U.S. ADA rules
Accuracy checksNovember 5, 2026 · passedText and 3D views checked against published sources; not reviewed by a medical professional

Open source: nothing gets stranded

Every line of code and every model file is public: code under the MIT License, the 3D model under CC BY-SA 4.0. Any organization can run its own copy, change it, or take it over, with no fees and no dependence on one person or company.

Code
github.com/ARCFrontierSystems/OpenChiari · MIT License
3D model
CC BY-SA 4.0
Hosting
Free static hosting; step-by-step guide included
Personal data
None stored, so there's nothing to migrate