Peek

Peek is a web app that opens and previews more than 570 types of file — documents, spreadsheets, presentations, images, CAD drawings and 3D models, medical scans, email, archives, source code, audio and video — directly in your browser. Files are read in the browser tab and are never uploaded, and there is nothing to sign up for. It can also be installed as an app on a phone or computer, and the viewers already used keep working offline.

This page needs JavaScript to open a file, because the file is read in your browser rather than on a server.

About Peek, supported formats and frequently asked questions