Install and connect
Add the Chrome extension, sign in securely with Google through Supabase, and choose whether tracking should be on by default.
Built for modern inboxes
Simple, open-source email tracking across the platforms you already use. Send normally and OpenTrackMail quietly tells you when an open is detected—without turning your inbox into a CRM.
No CRM. No writing assistant. Just open tracking.
How it works
OpenTrackMail adds one focused layer to your email workflow. There is no new sending process to learn and no pipeline to maintain.
Add the Chrome extension, sign in securely with Google through Supabase, and choose whether tracking should be on by default.
Compose in your inbox exactly as you already do. When tracking is enabled, OpenTrackMail adds a tiny invisible tracking image before send.
Check the status beside your sent message, hover for useful timing details, or open the dashboard for the complete activity history.
Inside your inbox
A gray check means tracking is active. Two blue checks mean a tracking image was loaded. Hover for the first open, latest open, and detected open count.
Simple history
Search tracked messages, filter by status, and open a clear activity timeline. OpenTrackMail stores metadata, not the body of your email.
Focused by design
See when an open is detected.
Tracking appears directly where you send email.
See first, latest, and detected open count.
View tracked emails without turning your inbox into a CRM.
Open source
OpenTrackMail is MIT licensed. Read the source, contribute, or run it with your own Supabase project.
View repositoryA useful signal, not a guarantee
Gmail, Apple Mail, Outlook, security scanners, privacy tools, image blocking, proxying, and caching can all influence results. “Opened” means the tracking image loaded. It does not prove the recipient read the email.
Install locally today. Chrome Web Store release is coming after review.