Last updated 8 October 2026
Cookies & device storage
Plot lets you begin on the board without an account. Anonymous board content stays in that browser; account boards use hosted storage for cross-device access. This table describes the current application code; deployment platforms and external services may process their own technical data.
What Plot stores on your device
| Storage | Purpose | Duration |
|---|---|---|
| Anonymous board (local storage) | Preserve cards, content, positions, and viewport changes before you create or sign into an account. | Until transferred into a new account, deleted in Plot, or browser site data is cleared. |
| Account authentication session (local storage) | Keep you signed in and refresh your account session securely. | Until you sign out, clear site data, or the session is revoked or expires. |
| Settings (local storage) | Remember theme, connection mode, endpoint settings, and optional tokens or restricted keys you enter. | Until changed or site data is cleared. |
| Thinking Partner chat (board storage) | Keep the conversation with its board. It is sent to the server only when you ask a question. | With the local or account board until its history or board is deleted. |
| Connection authorization state cookie | Confirm that an external-service callback belongs to the browser that started the connection. | Up to 10 minutes; HTTP-only and SameSite=Lax. |
Third parties
The current application code does not set advertising or behavioral-analytics cookies. Fonts, logos, favicons, avatars, research sources, AI processing, optional credit checkout, billing integrations, and the hosting platform can receive ordinary request information and may use cookies or comparable technology under their own policies. Plot cannot control third-party storage on pages you open through an external link.
Your controls
Use Plot’s card actions to remove content, create an account to transfer a new anonymous board into cloud storage, or clear browser site data to remove the device copy. Clearing site storage signs you out and deletes an anonymous board, but it does not delete a board already stored under your account. Blocking the short-lived connection state cookie can prevent a connection flow from working.