Privacy

Short version: your models never leave your device unless you export them, and there are no accounts or cookies.

Your models

Models are stored in your browser's own storage (IndexedDB) on this device. They are not sent anywhere. Delete them in the editor under Manage…, or by clearing your browser's site data; either way, export a file first if you want a copy. Import reads the file you choose inside the browser; export creates the file on your device. Auto-layout runs in a background worker on your device.

Your settings

A few display settings are saved in this browser (local storage) so they stick between visits: Light or Dark if you pick one in the header (Auto saves nothing), the editor's lens, and its View options (layer boxes, lanes, snap to grid). They never leave your device.

Visit statistics

The live site uses Cloudflare Web Analytics to count visits: which pages are viewed, the referring site, and the browser, device type and country. It sets no cookies and does not track you across sites. It never sees your models.

Hosting

The site is hosted on Vercel, which processes standard request data (such as your IP address) to deliver the pages and keep them secure.

Changes

If this changes, this page changes first. Last updated September 27, 2026.