How to open a PowerPoint on your phone
A presentation arrives in the chat an hour before the meeting, and your phone has no PowerPoint. You do not need the app to read it.
3 min readUpdated 2 Oct 2026
1. Save the file
Save the attachment to your phone: in Mail or a messenger, tap the file and choose Save to Files (iPhone) or Download (Android).
2. Open it in the browser
Go to osonkit.com, tap Choose file and pick the presentation. The slides are drawn on your phone — the file is not uploaded.
3. Read, search, present
- Swipe or use the arrows to move between slides.
- Speaker notes are shown under each slide.
- Search finds a word on any slide.
- The slide show button plays the deck full screen — handy when you connect the phone to a TV.
Other presentation formats
LibreOffice Impress files (.odp) open the same way. Old PowerPoint 97–2003 files (.ppt) show the text of every slide and the notes. For Keynote (.key) you see the first slide and the number of slides.
Tip: add OsonKit to your home screen (Share → Add to Home Screen on iPhone). Next time it opens like an app.
Got the file?
Open it here. Nothing is uploaded.