Open any file online, instantly
PDF, Word, Excel, EPUB, images, code and more — rendered right in your browser. Nothing is uploaded.
Drop any file to open it
or click to choose — everything stays on your device
Choose file🔒 100% private — files never leave your browser
Completely private
Your files are read and rendered on your device. They are never sent to any server.
No install, no signup
Open the page, drop a file, done. Works offline once loaded. No account needed.
Works everywhere
Responsive design for phone, iPad and desktop, in every modern browser.
Browse by category
Office documents
Read documents, spreadsheets and presentations without Office installed.
E-books & comics
Open e-books and comic archives in a clean reader.
Text & markup
Render Markdown, data files and source code with syntax highlighting.
Images
View ordinary and hard-to-open image formats in the browser.
Audio & video
Play media files directly with native and WebAssembly decoders.
Archives
Peek inside compressed archives and list their contents.
Data & analytics
Inspect databases and columnar data formats.
3D, CAD & GIS
Preview 3D models, CAD drawings and geospatial data.
Specialised
Domain-specific formats from medicine, astronomy and typography.
Frequently asked questions
Is this online file viewer free?
Yes, completely free with no sign-up and no limits. Open as many files as you like.
Are my files uploaded to a server?
No. Every file is opened and rendered locally in your browser, so it never leaves your device and nothing is stored.
Do I need to install anything or create an account?
No. There is nothing to install and no account to register — just open the page, drop your file, and it displays instantly.
Which file formats can I open?
Dozens — PDF, Word, Excel, PowerPoint, images, PSD, 3D models, CAD, e-books, code, archives, data and more. See the full list on the formats page.
Can I open archives like ZIP, RAR and 7z?
Yes. The viewer lists everything inside the archive, and you can open or download any file in it — or extract them all — right in your browser.
Does it work on my phone, iPad or tablet?
Yes. The viewer is fully responsive and works in modern mobile and tablet browsers such as Safari and Chrome.
Is there a file size limit?
There is no hard limit. Very large files depend on your device’s memory, and they are processed in the background so the page stays responsive.
Does it work offline?
Once the page has loaded, most viewers keep working without a connection. Heavier formats may load their engine from the internet the first time.