Extensis Fonts is a free add-on for Google Docs and Google Slides that shows over 1,400 Google Fonts in a side panel with previews. It suits students, teachers and office users who change fonts often. It costs nothing, but it only covers Google's own free fonts.
Extensis is now part of Monotype
Monotype Imaging Inc. announced its acquisition of Extensis on 18 November 2024. Extensis's site now carries Monotype branding and copyright, while the Google add-on is still listed under the Extensis name and was last updated on 25 June 2026.
Checked October 4, 2026
The bottom line
Handy, free font picker for Docs and Slides; no new fonts.
6.1
Our score
6.1 / 10
Conversion Gems editorial verdict
Free
Features4/10
4 - one job done well: browse, preview and apply Google Fonts; no new fonts or pairing help.
Value9/10
9 - free of charge on the Marketplace listing.
Ease of use9/10
9 - install from the Extensions menu and click a font to apply it.
Ecosystem3/10
3 - works only in Google Docs and Google Slides.
Support4/10
4 - Extensis help and support link on the listing; no dedicated support verified.
What it really is
A free font browser panel for Google Docs and Slides that surfaces Google's own free fonts.
Our take
If you pick fonts in Google Docs often, the side panel with previews is quicker than the built-in menu, and it costs nothing. It does not give you any font Google does not already offer. The permission list is broad for a font picker, so school and company admins may want to review it first.
Why we rate it
Free, quick to install and makes Google Fonts easier to compare in Docs and Slides.
The catch
Same fonts as Docs' own More fonts menu, and broad edit access to your Docs and Slides files.
Best for
Students and teachers using Google Slides
Office users styling Google Docs
Anyone who finds the font menu slow
Not good for
Designers needing licensed or custom fonts
Microsoft Word or PowerPoint users
Friction report
Time to value
Install from the Marketplace and use it in under a minute.
Scale breakpoint
None for individuals; admins may need to approve add-ons on managed accounts.
Walled garden
Low: fonts applied are standard Google Fonts inside your files.
What the add-on can access
Permission requested
What it means
Google Docs documents
View, edit, create and delete
Google Slides presentations
View, edit, create and delete
Third-party web content
Shown in prompts and sidebars
External services
Can connect to them
Your Google account
Primary email address and public profile
From the Extensis Fonts listing on the Google Workspace Marketplace, checked 4 October 2026. The add-on is free of charge.
Frequently Asked Questions
Yes. The Google Workspace Marketplace lists Extensis Fonts for Google Docs and Google Slides as free of charge, and the fonts it offers are free Google Fonts (checked 4 October 2026).
It comes from Extensis, a Monotype company, and has 9M+ installs. Before installing, note the permissions it asks for: view, edit, create and delete your Google Docs and Slides files, connect to external services, and see your Google email address. Install it only if you are comfortable with that access.
Previewing and applying Google Fonts from a side panel in Google Docs and Slides, so you can compare fonts by style without reopening the font menu.
In Google Docs or Slides, open Extensions, then Add-ons, then Get add-ons, search for Extensis Fonts and click Install. Start it from the Extensions menu to open the panel.
Monotype Imaging Inc. announced its acquisition of Extensis on 18 November 2024. The Google add-on still carries the Extensis name.
The Marketplace listing names only Google Docs and Google Slides as compatible apps.
Extensis Fonts alternatives
Other font and design tools from our reviews:
Canva: Drag-and-drop design tool with templates and a large font library for social posts, slides and documents.
Fontjoy: Free web tool that generates complementary font pairings with deep learning.
DesignCuts: Marketplace for design resources including fonts, graphics and templates.
