The Most Advanced Online Document Viewer

OnlineDocument Viewer

Files are automatically deleted after viewing

View PDF, CAD, PSD & Office files directly in your browser

Fast, secure, and completely free — trusted by thousands worldwide

home.hero.feature_fast
home.hero.feature_secure
home.hero.feature_plugins

What This Site Opens

PDF, DOC, XLS, PPT, PSD, DWG, SVG and 70+ extensions in all. Seventeen viewers, one per family of formats. Nothing to install.

Pick the viewer that matches your file, or drop it on the home page and be routed there. When viewing is not what you needed, twenty-two converter pages turn one format into another.

Key Benefits

  • home.value_proposition.benefit1
  • home.value_proposition.benefit2
  • home.value_proposition.benefit3
  • home.value_proposition.benefit4
  • home.value_proposition.benefit5

Powered by Doconut

Why this viewer runs on the Doconut.com SDK.

Over 70 formats — PDF, Microsoft Office, CAD — rendered by the Doconut .NET SDK. None of that rendering code is ours, and none of it is ours to maintain.

Building In-House

High risk, high cost, long timeline.

  • 6+ Months Development

    Months of engineering before the first file opens.

  • High Development Cost

    Senior hours spent on rendering instead of your product.

  • Ongoing Maintenance

    Updates, bug fixes and new formats are on you.

Recommended

Using Doconut SDK

Fast to integrate, cheap to run, maintained for you.

  • Integrated in Minutes

    A few lines of code and it runs.

  • Low Monthly Cost

    Priced by usage, predictable every month.

  • Fully Managed

    We ship the updates, the security patches and the new formats.

Explore Doconut.com

Powerful Features Built for Modern Platforms

View Any Document Instantly

Render PDFs, Office files, CAD, and PSDs right in your browser — plugin-free.

Fast & Secure

Server-side rendering by the Doconut engine. Uploads travel over HTTPS.

Embed Anywhere

The same rendering as a .NET SDK, installed from NuGet and run on your own servers.

Privacy First

The file is deleted after viewing. No account, no library, no copy kept.

Supported file formats

From PDFs to CAD drawings, we support all major document formats you work with daily. No plugins required – view everything directly in your browser.

PDF Documents

View or read any PDF document directly in your browser without extra software.

.pdf

CAD Formats

Open DWG, DXF, and DGN drawings online for free with high precision.

.dwg.dxf.dgn

Excel Spreadsheets

View Excel and CSV files directly in your browser with perfect rendering.

.xls.xlsx.csv.ods

Word Documents

Open and view DOC and DOCX documents instantly in your browser.

.doc.docx.odt.rtf

PowerPoint Presentations

Display PPT and PPTX files with smooth slide transitions.

.ppt.pptx.odp

PSD & Image Files

Preview Photoshop and image files like PSD, SVG, or TIFF with full detail.

.psd.svg.tiff.webp+4 more

Visio Documents

View Microsoft Visio diagrams online – no installation required.

.vsd

Project Files

Access Microsoft Project schedules directly in your browser.

.mpp

Ebook Formats

Read EPUB ebooks and publications online.

.epub

MSG and EML Files

Open Outlook MSG and EML messages with full formatting.

.eml.msg

Text & Web Formats

View plain text, XML, HTML, and XPS documents with preserved formatting.

.txt.rtf.xml.html+1 more

Vector and RAW Images

Support for vector graphics and professional photography formats.

.tiff.svg.ico.webp+5 more

The full format list

Our online document viewer supports over 70 different file formats from Microsoft, Adobe, AutoCAD, and more.

• home.supported_formats.summary_item1• home.supported_formats.summary_item2• home.supported_formats.summary_item3• home.supported_formats.summary_item4• home.supported_formats.summary_item5• home.supported_formats.summary_item6

Why Businesses Trust Online Document Viewer

Built for developers, creators, and businesses who need reliable, secure document viewing powered by Doconut technology.

Nothing Is Kept

Uploads travel over HTTPS and the file is deleted after viewing. Nothing is kept.

Global Performance

Optimized cloud architecture ensures fast, consistent access worldwide.

Always Reliable

Each viewer names the extensions it takes and the size it stops at, so a refused file tells you why.

Free for Personal Use

No account, no sign-in, no cap on how many files you open or convert.

Powered by Doconut

The rendering here is the Doconut .NET SDK, the same package it licenses to run inside other people's applications.

Optimized Experience

Every viewer and upload flow is engineered for speed, usability, and clarity.

Explore Doconut Technology

Core Features & Capabilities

Seventeen viewers, twenty-two converter pages, no account.

Lightning Fast

Instant document rendering with optimized performance. No waiting for large files to process.

Instant loading
Optimized performance
No delays

Secure & Private

Your files are never stored on our servers. Automatic deletion after viewing ensures complete privacy.

No file storage
Auto deletion
No account, no email

No Plugins Required

Works directly in your browser — no installations or dependencies required.

Browser native
Zero installation
Cross-platform

Access Anywhere

View your documents instantly on any device, from any location.

Global availability
No software needed
Mobile friendly

Cloud Powered

Rendering runs on our servers, not your device. A heavy CAD file opens on a phone.

High performance
Server-side rendering
Scalable processing

Mobile Optimized

Touch-friendly experience designed for all devices.

Touch optimized
Responsive design
Mobile first
Free for personal use
Files deleted after viewing