Know the moment your email is opened
Magio embeds an invisible tracking pixel in your Gmail messages and shows you exactly when, where, and how they’re read — through a browser extension and a clean dashboard.
Free · open source · self-hostable
Everything you need to track opens
Lightweight by design, detailed where it counts.
Real-time open tracking
A 1×1 pixel logs every open the instant a recipient views your message — no polling, no guesswork.
Native to Gmail
Toggle tracking right from the Gmail compose toolbar. The pixel is embedded automatically on send.
Rich view details
See each open with approximate location, device, OS and browser — parsed from the request.
Clean analytics dashboard
Total opens, unique viewers, first and last seen, and a per-email timeline of every view.
Private accounts
Password-protected sign-in for the dashboard and a per-user API token for the extension.
Open source & self-hostable
Next.js + Prisma + Postgres. Point the extension at your own server — your data stays yours.
From install to insight in minutes
Install & connect
Load the extension, enter your Magio server URL, and sign in.
Compose as usual
Write your email in Gmail. Magio quietly embeds a tracking pixel when you hit send.
Watch the opens
The moment it’s read, the open appears on your dashboard with full detail.
Your data, your server
Magio is fully open source. Run it on your own infrastructure and the extension talks only to the server you choose — no third-party analytics, no vendor lock-in.
Start tracking your emails today
Create an account, connect the extension, and see your first open roll in.