Your Files, Anywhere. Universal Access Without Installers

People expect to open a file from any device, without installing software or configuring anything first.

A browser-based viewer delivers that, within limits worth stating rather than glossing over. doconut.app opens 70+ extensions free and with no account, one file at a time, with a size ceiling set per format — 25 MB for a PDF or a PSD, 20 MB for a spreadsheet, 15 MB for a Word file, 10 MB for a CAD drawing, 5 MB for text and markup. Your file is deleted when you close the tab.

📱 Device-Independent Document Viewing

Whether customers are using macOS, Windows, iOS, Android, or Chromebooks — browser-based viewing delivers the same experience.

That’s why developers embed the Doconut online viewer for .NET and ASP.NET Core inside platforms — learn more at
👉 doconut.com.

🔒 No Installers, No Risk

Software installers introduce:

Security threats
OS dependency failures
Update friction
IT support load

A browser-native preview avoids all of this.
For an instant example, load a document at
👉 doconut.app.

🌐 Remote work depends on it

Universal file access is a requirement for modern business:

Hybrid teams
Shared portals
Online legal reviews
Digital onboarding

Cloud portals rely on the secure document-rendering engine powering enterprise previews — discover it at
👉 doconut.com.

📂 Seventeen Viewers, One Web Interface

Universal access means eliminating the “wrong program” problem.
Users shouldn’t worry about:

Not having Microsoft Office installed
PDF reader compatibility
File extensions
Version mismatches

Between them, the seventeen viewers open:

PDF
Word, Excel and PowerPoint, including the OpenDocument, macro-enabled and template variants
Images, from JPEG and PNG through SVG, TIFF, EPS and camera raw
Email — EML, MSG and EMLX, with headers and attachments
CAD drawings, Visio diagrams and Project plans

All from one web interface. What it will not open is DICOM: .dcm and .ima are deliberately excluded from the free viewers.

🕒 Where the time is actually saved

Universal access removes:

Time wasted looking for software that opens the format
Failed document opens on the wrong machine
Onboarding delays waiting for an install
Device-specific workflows

What it does not remove is the upload. Rendering happens on the server, so the file has to get there first — on a weak connection that is the wait, not the rendering.

🌍 Ideal for BYOD and Public Access Environments

Many organizations now operate with Bring-Your-Own-Device teams.
Universal viewing ensures:

No local installs
No corporate licensing problems
Consistent rendering

Kiosks, universities, libraries, and coworking spaces benefit enormously.

Universal access has one rule and two footnotes:

If you have a browser, you're in — one file at a time, and under the ceiling for its format.

It is viewing only: no conversion, no editing, no batch. For the file in a different format, that is the sibling site OnlineDocumentViewer.com.