Reading a PDF, a .docx or a .psd normally means owning Adobe Acrobat, Microsoft Office or Photoshop. Doconut.app is the way round that: a free web viewer that opens all three families in the browser, with no install and no account.
It is a viewer, not a document management platform: nothing is stored, nothing is shared and nothing is converted. You open one file, read it, and it is deleted from our servers when you close the tab.
Universal Access from Any Device
Rendering happens on our servers, so the device stops mattering: desktop, tablet or phone, the pages arrive ready to draw. A locked-down work laptop with no install rights works as well as anything else.
Breaking Compatibility Barriers
Windows, macOS, Linux or a phone — the operating system is irrelevant, because nothing runs on it.
From Adobe: PDF (25 MB), PSD (25 MB), EPS and camera raw DNG (25 MB).
From Microsoft: Word (15 MB), Excel (20 MB), PowerPoint (20 MB), Visio (25 MB), Project (20 MB) and Outlook's own MSG email format (10 MB).
The ceiling belongs to the format rather than to the site, and going over it is refused at upload with the exact limit named. Seventy-plus extensions in total, including the OpenDocument, macro-enabled and template variants of the Office formats.
Start Today!
Two products, so the links are worth getting right. Doconut.app is the free viewer — the one to open a file on. Doconut.com sells the .NET SDK behind it, for developers who need the same rendering inside their own application.
Start with the page for whatever is stuck: PDF, Word, Excel, PowerPoint or PSD.