Which Virtual Office Software Runs in a Browser With No Download? (2026) | Katmai

Written by Daniel Kosh | Oct 10, 2026, 6:47:06 AM

Several virtual offices run in a web browser with nothing to install. Katmai is a browser-based photorealistic 3D virtual office where your team works together on live video, with no download and no headset. Flat.social runs only in the browser, SpatialChat says its virtual office needs no downloads, and Spot lets anyone join with a web browser, although it also offers desktop apps. The real difference between them is what you see: live video of real people in a 3D office, or avatars and video on a map.

This guide is published by Katmai. Competitor details come from each vendor's own site in September and October 2026; check them before you buy.

Browser-based virtual offices compared

Product	Runs in the browser	What you see	Published price
Katmai	Yes, no download and no headset	Live video of real people in a photorealistic 3D office	$25 per user per month, every feature included
Flat.social	Yes, browser only, no install	Video and audio on a 2D map	Free for up to 5 people at once; $6 per seat per month
SpatialChat	Its virtual office page says no downloads	Spatial audio and video rooms	Plans built around events; Business listed from $399 per month
Spot	Anyone can join with a web browser; desktop apps also available	A customizable office with rooms	Free plan available
Kumospace	Yes	Avatars in a virtual space, with video	Free for up to 5 registered members; Business $16 per user per month, paid annually
WorkAdventure	Yes	Avatars on a 2D map, with video	Free for up to 10 users; Business from €8 per user per month

What "no download" means for your team

Nothing to install means new hires and guests join from a link, and IT has nothing to approve or push to laptops. It does not mean the office asks nothing of your computer. A 2D map is light. A photorealistic 3D office asks more, so check the requirements before a rollout. Katmai recommends 16GB of RAM and an i7 processor or better.

Which browser-based virtual office should you choose?

You want to see real faces in an office that looks real: Katmai.
You want a free 2D map for a handful of people: Flat.social, free for up to 5 people at once.
You mainly run events: SpatialChat, whose plans are built around events.

FAQ

Is there a virtual office that runs in the browser with no download?

Yes. Katmai runs in the browser with no download and no headset, and shows your team on live video in a photorealistic 3D office. Flat.social is browser-only, and Spot lets anyone join with a web browser.

Do browser-based virtual offices need a powerful computer?

It depends on what they show. A 2D map is light. A photorealistic 3D office asks more of the machine: Katmai recommends 16GB of RAM and an i7 processor or better.

Can guests join a browser-based virtual office without installing anything?

Yes. Guests open a link instead of installing an app. In Katmai, guests join by link at no cost.

How much does a browser-based virtual office cost?

Flat.social is free for up to 5 people at once and $6 per seat per month after that. Katmai is $25 per user per month, with every feature included and no minimum number of users.

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