In today’s fast-paced world, email has become a critical tool for both professional and personal communication. Gmail, Google’s free email service, is one of the most widely used platforms, boasting more than a billion users worldwide. To enhance the functionality of Gmail and improve productivity, a plethora of extensions are available for use. These extensions can help manage emails effectively, schedule messages, track email opens, and much more. Here is a curated list of the 15 best Gmail extensions for both professional and personal use.

1.Boomerang: This extension allows you to schedule emails to be sent at a later time, set reminders for follow-up emails, and temporarily archive messages until they are needed again.

2.Grammarly: Grammarly checks your grammar as you type in Gmail. It ensures your messages are clear, mistake-free, and effectively communicate your thoughts.

3.Todoist: This extension integrates your to-do list directly with your Gmail inbox. You can turn emails into tasks and even set reminders.

4.HubSpot Sales: This extension offers email tracking to notify you when a recipient opens an email. It also includes CRM integration to help manage your sales pipeline.

5.Mailtrack: A simple tracking tool that tells you if the emails you’ve sent have been read or not with a double-check system similar to WhatsApp.

6.Checker Plus for Gmail: Get notifications, read, listen to or delete emails without opening Gmail and easily manage multiple accounts.

7.LastPass: Although not specific to Gmail alone, LastPass can store all your passwords securely and autofill your Gmail login credentials.

8.Zoom for GMail: If you work remotely or frequently set up video calls, this extension makes scheduling Zoom meetings within an email thread a breeze.

9.Streak CRM for Gmail: Great for salespeople and project managers who can manage their deals directly from Gmail. Streak lets you track leads and manage projects from within your inbox.

10.WiseStamp: Create professional email signatures that can include social links, images, and more which are automatically appended to your emails.

11.Gmelius: Offers collaboration tools for teams such as shared inboxes, shared labels, email templates,s and sequences.

12.Clearbit Connect: Find anyone’s email address without leaving your inbox by inputting a company domain; useful for marketers and sales professionals looking for leads.

13.Sortd: This powerful tool transforms your Gmail into organized lists (like Trello) allowing you to drag and drop emails into different categories or stages of work flow.

14.Unroll.Me: Helps in cleaning up your inbox by unsubscribing from unwanted emails en masse and condensing subscription emails into a single digest.

15.MixMax: Provides powerful features like unlimited email scheduling, tracking opens & clicks along with setting up polls & surveys inside emails for interactive conversation with recipients.

These extensions can greatly increase productivity and efficiency within Gmail making it an even more powerful tool in both professional scenarios as well as personal use cases — ensuring users get the most out of their email experience.