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Outlook on the web takes a step closer to becoming a PWA (Image credit: Windows Central)

What you need to know

  • Outlook on the web is on its way to becoming a progressive web app.
  • One person on the web spotted an install button while using the site.
  •'s manifest file also shows that it's becoming a PWA.

Microsoft continues to embrace progressive web apps. The next Microsoft service to convert to a web app might be (via A person named Nick DeLena spotted an install button for while using the site in the Brave browser. At the moment, can't be installed through other browsers like the Chromium version of Microsoft Edge.

Paul Thurrot looked through's site manifest, which repeatedly includes "pwa/v1." I didn't see an install button when I opened up in Microsoft Edge Beta. Similarly, Thurrott found that despite having the manifest file, his browser could not find a matching service worker.

While is inching towards becoming a progressive web app, it lacks offline use right now. For the web version of Outlook to compete with the Windows 10 Mail app, it needs to gain several features.

Sean Endicott
Sean Endicott

Sean Endicott is the news writer for Windows Central. If it runs Windows, is made by Microsoft, or has anything to do with either, he's on it. Sean's been with Windows Central since 2017 and is also our resident app expert. If you have a news tip or an app to review, hit him up at

  • Wow, PWA all the way!
    Are the other Office Online apps (Word, Excel, PowerPoint) already PWAs?
  • Like what, Is this article finished...?
  • Lol by some standards, yes...