Just like browser extensions—such as the 25 Firefox Add-ons That Will Make You More Productive—Microsoft Word add-ins give you quick access to tools right within your document, keeping your workflow seamless without switching apps.
We've curated the top 10 add-ins to enhance your Word experience, based on real-world testing and user feedback.
In Word 2016 and later (Windows and Mac), open a document, go to the Insert tab, and click My Add-ins. This launches the Office Add-ins Store, where you can browse categories or search. Alternatively, visit the Office Store online and select Add-ins.

Click an add-in for details. From within Word, hit Trust It to install; from the site, click Add. You may need to sign out/in to Office 365 or restart Word.

Third-party add-ins require reviewing terms, privacy policies, requirements, and security—just like any extension.
To launch, revisit My Add-ins under Insert, double-click your choice, or use the dropdown for recent ones.

These add-ins let you stay in Word, saving time on reports, brochures, and more.
Word's spellcheck is solid, but Consistency Checker spots hyphens, number formats, spelling variants, typos, and abbreviations for polished docs.

Hit Scan to review and fix inconsistencies, like 'email' vs. 'e-mail'.
Perfect for brochures or presentations, search images by keyword, collection, or category directly in Word—or right-click selected text.

Select and insert with one click.
Create QR codes effortlessly (11 Great Browser Tools to Create and Read QR Codes). Pick content type, colors, and error correction, then insert.

Ideal for newsletters or brochures; resize in Word.
Powered by Microsoft Translator (7 Quick and Easy Translators for Firefox), highlight text or type it in. Auto-detects source language; choose target and insert.

Trusted for Word/Excel templates (Top 15 Meeting Agenda Templates for Microsoft Word). Browse categories, download from site.

DocuSign users: Sign docs or route for signatures via Office 365 login. Add signers, edit fields easily.

Keyword search or categories for symbols; favorites for quick access. Dozens more under More.

Basic calc for timesheets or percentages—no app-switching needed.

Look up definitions; integrates with Thesaurus for convenience.

Copy abbreviation; get definitions by category/context.

From My Add-ins, click More (three dots) on the add-in, select Remove, confirm.

Add-ins transform Word workflows. Translators for multilingual work? Calculator for math? Share below. For more, check 5 Microsoft Office Apps and Add-ins to Boost Your Productivity.