Boost Your Gmail Productivity with the Top 5 Google Workspace Marketplace Extensions

Boost Your Gmail Productivity with the Top 5 Google Workspace Marketplace Extensions

Gmail has been a fully-fledged email platform (with extra helpful features) for more than a decade now. But despite this, users still need more customization options and functions beyond its scope. It is why Google launched Google Workspace Marketplace—hosting extensions or apps that broaden Gmail’s capabilities. Today, Google Workspace has over 8 billion users, with the marketplace unsurprisingly passing 5 billion app installs. And this article explores five of the best Gmail extensions available, so please read on.

Why Use Gmail Extensions?

Aside from tweaking the interface, people mainly use Gmail extensions to save time by streamlining their email workflow. An example is being able to launch or fetch data/files from tools like Slack and Dropbox via shortcuts right from Gmail. And another benefit is having the capability to automate repetitive actions, whether of Gmail or 3rd party sites.

Many add-ons also simplify tedious tasks, like using templates, following email sequences, and sending bulk messages—useful for marketing and customer service applications. And there are those that add missing pro features, such as a built-in document viewer/editor that DocHub for Gmail offers.

Top 5 Gmail Extensions in Google Workspace Marketplace

Extension 1: GMass for Gmail

GMass is one of the must-have Gmail plugins for marketers and power users. It simplifies sending thousands of emails to unlimited contacts, tracking messages, performing A/B tests, auto-follow-ups, multi-account setup, and many more advanced actions. GMass also connects Gmail to Google Sheets for mail merging as well as to CRMs for live marketing data fetching.

Since it’s an all-in-one mass email tool, one can do a complete email campaign using just it and Gmail. Not only does this speed up the workflow, but users can also potentially save money by not paying for additional sites/add-ons. And it’s rated 4.8 over 5 stars in the Google Workspace Marketplace—with the majority of reviews praising its powerful features that are packaged in a simple, intuitive interface.

Extension 2: Slack for Gmail

Slack is a top choice among teams in all sorts of industries when it comes to internal employee communications. Thankfully, the company behind it developed a Gmail extension which has the following features:

One-click Gmail to Slack forwarding: When reading an email, the Slack sidebar shortcut allows one to forward it with just a click. It can be sent to a private conversation or even an entire channel in Slack.

Include email attachments and a message: Before forwarding an email, one can type a custom message for more context. There’s also an option to include or exclude email attachments in the Slack chat.

Email context preview – Usually, chat platforms only show the link of an attached email in their conversation interfaces. But in the Slack extension’s case, all essential information is visible, from the sender to the attachment file names.

Unlike many Gmail add-ons, the Slack extension integrates into the app sidebar. Not only can this reduce potential lag for the Gmail web app, but it also makes Slack a bit more accessible.

Extension 3: Dropbox for Gmail

Google Drive is integrated natively into Gmail’s email compose and view interface. And to offer the same experience to its users, Dropbox released a Gmail extension for accessing files quickly with shortcuts. Without leaving the platform, one can attach Dropbox files, upload attachments to Dropbox, and preview any file content in emails.

The Dropbox add-on installs a shortcut in Gmail’s email compose and view interface, meaning it’s as convenient to use as Google Drive. It also integrates into the sidebar and can be opened in other Google apps. And it’s rated 4.1 over 5 stars in the Google Workspace Marketplace, with most reviews stating overall reliability and only lacking certain functions (like multi-file uploading).

Extension 4: DocHub for Gmail

While Gmail opens major document types with Google Drive preview, there aren’t other viewing options besides zooming in/out. But with DocHub for Gmail, users can sign, fill forms, highlight/comment, manipulate pages, encrypt documents, and do other things. It’s useful for simple PDF management as well as collaboration, as files can be public or private.

DocHub is one of the top-rated Google Workspace extensions, boasting 4.6 over 5 stars, with most of the reviews praising its reliability. According to users, the extension works great even after multiple revisions of the same document. But there are still a few that experienced bugs like new edits appearing blurry after saving (but can be fixed by resaving).

And besides local files, it can open documents stored in Google Drive as well as Dropbox. Google Workspace formats are also supported without needing to convert to Microsoft Office formats.

Extension 5: Zoom for Gmail

The Zoom add-on makes it possible to schedule and join Zoom meetings right from Gmail. It’s accessible in the app sidebar and Google Calendar, offering also the ability to create a meeting in an event. And in the same sidebar, one can see an overview of all upcoming sessions—complete with details, as well as an option to start the session.

The add-on can be quickly installed, and users will only need to sign in/allow access once right from Gmail to use it endlessly. It also has the same familiar interface as the desktop app, meaning one can get started right away without relearning.

With such benefits, regular users can now enjoy a more feature-rich conferencing tool than Google Meet in a less cumbersome package. Pros and organizations can also manage their team communication schedules more efficiently thanks to Google Calendar integration.

How to Install and Use Gmail Extensions

Step-by-step Guide On Installing Gmail Extensions

Unlike the regular Chrome extensions, there are various ways to install Gmail add-ons from the Google Workspace Marketplace. These methods are as follows:

Install Gmail extensions via the Google Workspace Marketplace Website

1. In the browser, open “”

2. Find a Gmail extension in the search bar.

3. One can also filter the homepage to show Gmail extensions by clicking the “Works with” dropdown. Then, select “Gmail” and click “Done.”

4. After choosing an add-on, click the “Install” button.

5. In the pop-up window, click the Google account.

6. Scroll down to the bottom and press the “Allow” button.

7. After a few seconds, the “Install” button will be replaced with “Uninstall,” and an email will arrive confirming the installation.

Install Gmail extensions via the Gmail Sidebar

1. Open the Gmail website and click the sidebar arrow icon on the bottom right corner of the screen.

2. Click the “+” icon in the middle of the sidebar.

3. Find a Gmail extension in the search bar.

4. One can also filter the homepage to show Gmail extensions by clicking the “Works with” dropdown. Then, select “Gmail” and click “Done.”

5. After choosing an add-on, click the “Install” button.

6. In the pop-up window, click the Google account.


7. Scroll down to the bottom and press the “Allow” button.

8. After a few seconds, the “Install” button will be replaced with “Uninstall,” and an email will arrive confirming the installation.

Tips on Managing and Customizing Extensions

Besides the setup/customization process of such productivity tools for Gmail, there are other helpful settings and tips that users can try out. In detail, the following are some of the best ones:

Tip #1. View and manage (delete) installed apps or extensions from the Google Workspace Marketplace.

1. In the browser, go to “”

2. Click the gear icon up top and press the “Manage apps” pop-up text.

3. Choose an add-on and click the three-dots icon. After that, press “Uninstall” and then the “UNINSTALL APP” in the pop-up.

Tip #2. Read tips and tutorials on select Gmail extensions (usually the top/popular ones).

1. Open the page of a Gmail extension.

2. Scroll down to the bottom and click “Learn more” under “Support” in the “Additional information” section.

3. Browse and read tips, tutorials, and answers to common questions about the extension.

Tip #3. Open an add-on in the sidebar for better multitasking.

1. Launch the Gmail website and click the sidebar arrow icon on the bottom right corner of the screen.

2. Click any of the items in the sidebar to open a mini window of an add-on.

Frequently Asked Questions (FAQs)

Q. How many Gmail extensions can I install in my Google account?

A. Google doesn’t impose a limit on the number of Gmail extensions installed per account. However, only one extension can be used at a time.

Q. Do I have to pay to use extensions for Gmail?

A. No, paying for Gmail extensions is optional, and there are thousands of free ones. Many add-ons offer premium plans for extra features or continued access after the free trial.

Q. Are Gmail add-ons safe to use?

A. Google scans everything it offers in the Google Workspace Marketplace for potential security risks—so your data and accounts should be safe. You can also read user reviews and avoid those with reported issues.

Q. Can add-ons make the Gmail website or my computer slow?

A. Unlike Chrome extensions, Gmail add-ons are installed on the cloud (not locally). It means they have less chance of causing lag on your device as well as the Gmail site.

Q. Will Gmail extensions work with any browser?

A. Yes, Gmail extensions will work with Chromium forks, Safari, and Firefox-based browsers.


For anyone who wants enhanced capabilities for marketing, communication, or file transfers—GMass, Slack, Dropbox, DocHub, and Zoom for Gmail are some of the best choices. But besides these selections, there are currently over 5,000 apps/extensions in the Google Workspace Marketplace. And there’s likely one that can integrate a tool you love or achieve your specific task.

While such add-ons run on the cloud, Gmail still opens in the browser, which is unproductive in many ways. Luckily, one can now install this email platform to the desktop—and it’s via Boxysuite, the first and only native macOS Gmail app. Boxysuite offers every Gmail function plus extra features and supports all Google Workspace Marketplace extensions (including those above). Enhance Gmail experience by learning more or trying it for free today!

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