Read receipts for Gmail — know when your email is opened, how often, and from where. And see who is tracking you.
Users
8
+5 in 30 days
Rating
0.0 / 5
unchanged in 30 days
Ratings
0
0 in 30 days
Store rank
#216K
#181K among extensions
Version
0.11.0
updated 5 Oct 2026
Users
monthly, 1 months
Latest, 17 Oct 2026:8 usersMove the mouse over the chart for any month
Ratings count
monthly, 1 months
Latest, 17 Oct 2026:0 ratingsMove the mouse over the chart for any month
The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.
About Railgun Pixel — Email Tracking, Both Ways
Railgun Pixel — Email Tracking, Both Ways
See who is tracking you in Gmail. Get read receipts on the mail you send.
WHO IS WATCHING YOU
Open any email and Pixel shows you, right in the message, which companies planted a tracking beacon in it — with their logos. Mailchimp, HubSpot, Salesforce, newsletter tools, sales trackers: Pixel knows more than 100 of them. Everything is detected on your own computer. Nothing about the mail you read is sent anywhere.
READ RECEIPTS ON WHAT YOU SEND
Connect Pixel to a free Railgun account and every email you choose to track tells you when it was opened. A small toggle in the Gmail compose window turns tracking on or off per message, and the message says it is tracked, in plain words, so the recipient is never deceived.
FREE
- Tracker detection in every email you receive, with company names and logos
- 25 tracked emails a month, and whether each one was opened
- Invite a friend: +10 tracked emails a month, up to +100
PLUS — $7 A MONTH
- Unlimited tracked emails
- When, where, how often and on what device each email was read
- Tracker blocking: the beacon is stopped before it can report that you opened the mail
- Instant alerts the moment an email is opened
PRIVACY, PLAINLY
Pixel makes no network request until you connect it to a Railgun account. Even then it reports only a monthly count of trackers per company, never a sender, subject or message. The only emails registered with your account are the ones you chose to track. The full policy is at railgun.chat/pixel/privacy.
Built by Railgun, a small privacy-first software company. Questions: support@railgun.chat