5 Outlook Add-ins Every Office Manager Needs

Outlook alone wasn't built for this. But with the right add-ins, it can be. All five below are free (or nearly free), install in under two minutes, and are designed for people whose entire job is keeping everyone else on track.

What exactly is an add-in? It is a small plugin that installs directly into Outlook and extends what it can do — think of it like downloading an app on your phone. You can find them in Microsoft AppSource: in Outlook, click the Home tab, then Get Add-ins, and type the name of the add-in into the search bar.

1. Boomerang

You send an email and completely forget about it. A week later someone asks "did you ever hear back?" and... you did not.

Boomerang fixes that. It lets you schedule emails to send at a specific time (perfect for Monday morning reminders you write on Friday), and it'll nudge you automatically if nobody replies. You can also track whether someone opened a link you sent.

Price: Free basic version / from ~$5/month for full features

Pro tip: Use it to send meeting reminders at exactly the right time — set it once, and Boomerang handles the rest.

2. MeisterTask

Someone sends you a request. You write it on a sticky note. The sticky note disappears. Sound familiar?

With MeisterTask, you can convert any email into a task — with a due date, an assigned person, and a priority level — without ever leaving your inbox. No more sticky notes, no more "I thought you were handling that."

Price: Free basic version / from ~$9/month

Pro tip: If your inbox doubles as your to-do list, this add-in will genuinely change your day.

3. DocuSign

A contract arrives by email. You print it, sign it, scan it, and email it back. Twenty minutes gone for something that should take two.

DocuSign lets you send any document for signature straight from Outlook. Your boss can sign from their phone. You get the completed version back automatically — no printer, no scanner, no back-and-forth.

Price: Free basic version / Personal plan from ~$10/month

Pro tip: Works great for internal approvals too — purchase orders, PTO requests, anything that usually bounces around as an attachment.

4. Grammarly

You're emailing an international partner. You re-read the message four times looking for mistakes. You send it and still wonder if something sounded off.

Grammarly sits inside your Outlook compose window and checks grammar, tone, and style in real time. It even suggests full rewrites when a sentence isn't landing right.

Price: Free basic version / Premium from ~$12/month

Pro tip: Set the tone to "formal" and Grammarly will make sure every email sounds polished — even the ones you're dashing off between meetings.

5. Outlook on the Desktop

You're working in one window and constantly switching to Outlook just to check what's next. Every switch breaks your focus.

This free add-in pins a live Outlook calendar directly to your desktop. It's always there, always current — no tab-switching required.

Price: Free

Pro tip: If you manage your boss's calendar, this is a game-changer. You'll always know what's coming up without interrupting whatever else you're doing.

If you've been thinking "I wish there was something like this for managing contacts and my boss's tasks" — that's exactly what eWay-CRM does. It works right inside Outlook and turns it into a full office management tool.