Top 20 Gmail Extensions and Add-ons to Boost Productivity in 2025
Gmail is already one of the most powerful email platforms in the world — but when you combine it with the right extensions and add-ons, it becomes a true productivity machine.
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Whether you’re managing clients, tracking sales, handling customer support, or just trying to keep your inbox under control, Gmail extensions can save you hours every week.
Here’s a complete list of the 20 best Gmail extensions and add-ons for 2025 that will supercharge your email experience.
1. Grammarly for Gmail
Best for: Writing error-free and professional emails.
Grammarly automatically checks your spelling, grammar, tone, and clarity while you write emails. It helps ensure your communication looks polished and professional every time.
Key Features:
Grammar and spelling checker.
Tone detection and clarity suggestions.
Works directly inside Gmail’s compose window.
Why You’ll Love It: Perfect for business owners, marketers, and anyone writing client-facing emails.
2. Boomerang for Gmail
Best for: Scheduling, reminders, and follow-ups.
Boomerang lets you schedule emails to send later, set reminders, and even pause your inbox to stay focused.
Key Features:
Email scheduling and follow-up reminders.
AI-powered writing assistant (“Respondable”).
Inbox pause to reduce distractions.
Why You’ll Love It: Never forget a follow-up again.
3. RightInbox
Best for: Professional email automation.
RightInbox adds powerful automation features to Gmail like recurring emails, signatures, and reminders.
Key Features:
Schedule recurring emails.
Track email opens and clicks.
Multiple professional email signatures.
Why You’ll Love It: Ideal for sales professionals and marketers.
4. Todoist for Gmail
Best for: Task management.
Turn emails into actionable tasks with one click. Todoist integrates Gmail with your to-do list — so nothing falls through the cracks.
Key Features:
Add emails to Todoist as tasks.
Assign due dates and priorities.
Syncs across all devices.
Why You’ll Love It: Keeps your inbox and tasks perfectly aligned.
5. Gmelius
Best for: Team collaboration inside Gmail.
Gmelius turns Gmail into a shared workspace where teams can manage projects, automate workflows, and communicate seamlessly.
Key Features:
Shared inboxes (great for customer support).
Email tracking and automation.
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Why You’ll Love It: Replaces multiple tools like Slack and Trello — directly inside Gmail.
6. Mailtrack
Best for: Knowing when emails are opened.
Mailtrack adds the famous “double-check” marks (✔✔) to your Gmail so you can see if someone opened your message.
Key Features:
Real-time email tracking.
Notifications for opens and clicks.
Daily reports of tracked emails.
Why You’ll Love It: Great for salespeople and recruiters.
7. Trello for Gmail
Best for: Visual task and project management.
With Trello for Gmail, you can turn emails into Trello cards without leaving your inbox.
Key Features:
Add emails to Trello boards.
Choose lists, due dates, and labels.
Stay organized with project tracking.
Why You’ll Love It: Simplifies project collaboration.
8. Zoom for Gmail
Best for: Instant video meetings.
Zoom’s Gmail add-on lets you start or schedule Zoom meetings directly from your inbox.
Key Features:
One-click meeting creation.
Add participants automatically.
Syncs with Google Calendar.
Why You’ll Love It: Perfect for remote teams.
9. Dropbox for Gmail
Best for: Sharing large files securely.
Attach Dropbox files directly into emails — no need to upload large files.
Key Features:
Insert Dropbox links quickly.
Automatically updates shared files.
Keeps attachments lightweight.
Why You’ll Love It: Saves Gmail storage space.
10. Slack for Gmail
Best for: Fast internal communication.
Send email content or attachments to any Slack channel or user without switching tabs.
Key Features:
Share emails directly to Slack.
Add notes or comments.
Stay connected with your team faster.
Why You’ll Love It: Cuts down endless email threads.
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11. Checker Plus for Gmail
Best for: Managing multiple Gmail accounts.
Checker Plus lets you get desktop notifications, read emails, and reply without opening Gmail.
Key Features:
Real-time desktop notifications.
Manage multiple Gmail accounts.
Voice reading and quick actions.
Why You’ll Love It: Ideal for users juggling several email addresses.
12. Clearbit Connect
Best for: Business intelligence and contact insights.
Get detailed info about any sender — company name, role, location, and LinkedIn profile.
Key Features:
Find verified work emails.
See company and contact profiles.
Works directly inside Gmail.
Why You’ll Love It: Perfect for B2B sales and marketing.
13. Streak CRM for Gmail
Best for: Sales and relationship management.
Streak turns Gmail into a full-featured CRM (Customer Relationship Management) tool.
Key Features:
Manage pipelines directly inside Gmail.
Track deals, clients, and emails.
Shared pipelines for teams.
Why You’ll Love It: No need for expensive external CRMs.
14. DocuSign for Gmail
Best for: Sending and signing documents.
Send contracts, proposals, and agreements for e-signature directly from Gmail.
Key Features:
Sign and send documents securely.
Track document status.
Integrates with Google Drive.
Why You’ll Love It: Saves time and eliminates paper.
15. Evernote for Gmail
Best for: Saving important emails and notes.
Save any email to Evernote with one click — for research, receipts, or reference.
Key Features:
Store emails in notebooks.
Add tags and comments.
Accessible from any device.
Why You’ll Love It: Keeps your important info neatly organized.
16. ZoomInfo ReachOut
Best for: Lead generation.
Find verified business contact details right inside Gmail.
Key Features:
Email and phone number lookup.
Company insights.
CRM integration.
Why You’ll Love It: Saves hours of prospect research.
17. FlowCrypt
Best for: Sending encrypted emails.
Add end-to-end encryption to your Gmail for private communication.
Key Features:
OpenPGP encryption.
Simple setup.
Protects sensitive data.
Why You’ll Love It: Great for lawyers, journalists, and anyone handling confidential info.
18. Giphy for Gmail
Best for: Fun and engaging communication.
Add animated GIFs to your emails directly from the Giphy library.
Key Features:
Huge collection of GIFs.
One-click insertion.
Lightweight and fast.
Why You’ll Love It: Adds personality to casual or creative emails.
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19. Asana for Gmail
Best for: Project and task integration.
Convert emails into Asana tasks without switching tabs.
Key Features:
Create, assign, and track tasks.
Syncs automatically with projects.
Keeps your workflow connected.
Why You’ll Love It: Keeps project updates in sync with your inbox.
20. Google Workspace Add-ons (Bonus)
Best for: All-in-one business integration.
Google offers its own set of add-ons for Calendar, Docs, Meet, and Drive — all accessible directly from Gmail’s sidebar.
Key Features:
Launch video calls.
Access shared files instantly.
Add events or notes from emails.
Why You’ll Love It: Keeps your entire workflow within Gmail.
Pro Tips for Using Gmail Extensions Efficiently
Don’t overload Gmail: Install only the extensions you actually use.
Check permissions carefully: Only allow access to trusted apps.
Update extensions regularly: Keep them secure and bug-free.
Test compatibility: Some extensions may conflict with each other.
Sync across browsers: Chrome profiles help manage extensions easily.
The Future of Gmail Extensions in 2025 and Beyond
In 2025, Gmail extensions are moving toward:
AI integration (smart email drafting, prioritization, auto-replies).
Security-first design (encrypted communication).
Cross-platform productivity (seamless sync with mobile).
Google is also expanding the Gmail Add-ons API, allowing developers to create even smarter tools that integrate deeper with Workspace apps.
Soon, Gmail will be more than an inbox — it’ll be a command center for all your work.
Final Thoughts
Gmail extensions are the secret weapon of productivity pros.
Whether you’re a freelancer, entrepreneur, or corporate employee, adding the right mix of tools can:
✅ Automate repetitive tasks.
✅ Improve communication.
✅ Strengthen collaboration.
✅ Keep you organized and stress-free.
Choose 3–5 of the extensions from this list that fit your workflow and start testing them today. Within a week, you’ll feel the difference.
Remember: It’s not about working harder — it’s about working smarter. Gmail extensions help you do exactly that.
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