Open .pptx files free in your browser
The slide format of Microsoft PowerPoint since 2007. Deck in Madosuite opens .pptx files and saves them back, in a browser tab, without PowerPoint.

Three steps
Open Madosuite
In your browser. A small Linux machine starts on your device.
Upload the file
In Files, press Upload and pick your .pptx file. Then open it with Deck.
Edit and save
Save it as .pptx again, or export PDF or PNG, and download it.
Deck also presents it full screen and exports it to PDF.
Deck opens
Deck saves
Questions
How do I open a .pptx file without PowerPoint?
Open Madosuite in your browser, upload the file in Files, and open it with Deck. It is free.
Can I edit it and save it again?
Yes. Deck saves PPTX, PDF, PNG, JPEG, Animated GIF.
Is my file uploaded?
No. It goes into the Linux machine that Madosuite runs in your browser, on your device.
Will it look the same?
Deck also presents it full screen and exports it to PDF.
Is Madosuite free?
Yes. The apps run on your own device, in the browser tab, so there is no server time to pay for. There is no trial period.