← Dashboard

Settings

Live device previews on the dashboard (opt-in).

TRMNL session cookie

With your trmnl.com session cookie stored, this dashboard can pull a live preview image of each device's current screen — no per-device API keys to set up.

Stored: ImBl…D%3D

Saved 6/5/2026, 6:15:40 PM

How to find your session cookie
  1. Open trmnl.com/dashboard while logged in.
  2. Open DevTools → Application → Cookies → https://trmnl.com
  3. Find the cookie named _trmnl_session and copy its Value.
  4. Paste it below.

You can also paste the whole _trmnl_session=...; header — the value will be extracted.

The cookie is encrypted with AES-256-GCM using TRMNL_COOKIE_ENCRYPTION_KEY before being written to Vercel Blob (trmnl-session.json). The blob URL is never exposed to the browser. Treat the cookie as a password — it grants full access to your trmnl.com account.