Best Email Tracker Chrome Extensions in 2026, Compared

Searching for an email tracker Chrome extension brings up a dozen names that look alike. They are not. Some are CRMs with tracking on the side, some only work in Gmail, some add a signature to your emails. Here is how the main options compare, and how to pick the right one for the way you work.

Table of contents

What to compare in an email tracking Chrome extension

• Which inboxes it supports. Most email tracking extensions are built for Gmail only. If you also use Outlook.com, Zoho Mail or a webmail from your host, check this first.
• Opens and clicks. Open tracking tells you an email was read; click tracking tells you what they looked at.
• Your own opens. A tracker that counts you rereading your sent email gives false signals. See why we never count your own opens.
• What the free plan adds to your emails. Some free plans add a branded signature to every email you send.
• What happens after the open. A notification, a dashboard, a CRM pipeline, or an assistant that helps you follow up.

mailcheck

Full disclosure: mailcheck is our product, so read this section with that in mind. mailcheck is an email tracker Chrome extension built for one-to-one emails across several inboxes: Gmail, Outlook.com, Zoho Mail in every region, Hostinger Mail, Mail Orange and SFR Mail. It tracks opens and clicks with a switch on each email, never counts your own opens, adds no signature to your emails, and lets you ask Claude, ChatGPT or any AI agent who opened and who clicked through its MCP connector. It is free to start, with unlimited tracking from $9 a month.

Mailtrack

One of the best known Gmail trackers. Simple and popular, with double check marks next to your sent emails. It is focused on Gmail, and its free plan has historically added a "Sent with Mailtrack" signature to your emails. A good fit if you only use Gmail and want the simplest possible tool.

Streak

Streak is a CRM that lives inside Gmail, with pipelines, boxes and contacts, and email tracking is one of its features. Choose it if you want a full CRM in Gmail; it is more than you need if you only want to know when your emails are opened.

HubSpot Sales extension

HubSpot's extension tracks opens and clicks and logs them into the HubSpot CRM. It makes sense if your team already runs on HubSpot. Used on its own, it pulls you into a much larger platform.

Saleshandy

Saleshandy is built around cold email campaigns and sequences at scale, with tracking included. Choose it for outbound prospecting at volume, rather than for one-to-one emails sent from your own inbox.

How to choose

• Gmail only, simplest tool: mailcheck or Mailtrack.
• Several inboxes, or Zoho, Outlook.com or a hosting webmail: mailcheck.
• You want a CRM in Gmail: Streak.
• Your team already uses HubSpot: the HubSpot Sales extension.
• Cold email at volume: Saleshandy.

Features and prices change often: check each tool's current plans before you decide.

Conclusion

The best email tracker Chrome extension is the one that fits your inbox and your way of working. If you send one-to-one emails from more than one inbox, or simply want accurate opens without a signature on every email, mailcheck is built for exactly that.

Frequently asked questions

Is there a free email tracker Chrome extension?

Yes. Several, including mailcheck, have a free plan. Check what the free plan adds to your emails and whether it covers your inbox.

Do email tracking extensions work in Brave or Arc?

Most Chrome extensions do, since these browsers are built on Chromium; see our article on email tracking in Chrome, Brave and Arc.

Can an email tracker work outside Gmail?

Some can. mailcheck also works in Outlook.com, Zoho Mail, Hostinger Mail, Mail Orange and SFR Mail.

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