0px
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Know when your emails are read.
Free, open source, zero-knowledge email tracking for Gmail.
Setup required to install extension
- Download and unzip the file
- Go to
chrome://extensions
- Enable "Developer mode" (top right)
- Click "Load unpacked" → select the folder
↓
Download extension.zip
Usage
- Compose an email in Gmail
- Click "Track" before sending
- See when your email was opened
Privacy
Server only stores random hashes + timestamps.
No accounts, no emails, no passwords.
Limits
Free, no account needed
50 pixels per account, 100 opens per pixel
Open Source
Host the server yourself: guide
Code: github.com/bitowaqr/0px