Cookie Policy
Last updated: 11 May 2026
This policy explains which cookies and similar technologies (e.g. localStorage) are used on grafcet.io, why they are used, and how you can change your choices at any time.
What cookies are
Cookies are small text files a browser stores on your device when you visit a website. They can keep you signed in, remember preferences like language or theme, or measure usage anonymously. The browser-side localStorage and sessionStorage APIs work similarly.
Categories
- Essential — required to operate the site, no consent needed.
- Preferences — store language, theme or similar settings.
- Statistics — anonymous usage analytics, only with consent.
- Marketing / third-party — embeds like videos, only with consent.
Cookies and storage keys in use
| Name | Provider | Purpose | Duration | Category |
|---|---|---|---|---|
| sb-* | Supabase (EU) | Login session, cloud storage | Session / 1 year | Essential |
| CookieConsent | Cybot/Cookiebot (EU) | Stores your consent choices | 12 months | Essential |
| grafcet-* (localStorage) | grafcet.io | Last GRAFCETs locally, language, theme, onboarding state | Until cleared | Preferences |
| ph_*, __posthog | PostHog (EU) | Anonymous usage analytics | 12 months | Statistics |
| YouTube/Google | Google (USA) | Embedded videos (click-to-load) | Variable | Marketing |
How consent works
On your first visit you see a banner. Essential cookies load immediately; everything else only after you actively accept. If you decline, statistics and marketing cookies stay blocked.
Change your choices
You can update your cookie preferences any time:
Questions?
Questions? Email hi@grafcet.io.