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PPT PPSX
Free online converter

Convert PPT to PPSX

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PPT to PPSX converterFREE
Drop a .PPT file here
or pick one - we convert it to .PPSX and give you the file to download

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Tested on macOS, Windows & Linux
Last verified Oct 2026

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How to convert PPT to PPSX

  1. Add your .PPT file - drop it in the box above or click to browse.
  2. Convert it to .PPSX in a few seconds.
  3. Download your new .PPSX file.

What to expect

  • PPSX and PPTX share the same ZIP+XML structure - renaming a .ppsx to .pptx makes it open in editing mode instead of slideshow mode.
  • VBA macros are stripped during conversion; if your .ppt contains macros you need to keep, save as .pptm instead.
  • PPSX does not lock the file - recipients can rename it to .pptx or open it in LibreOffice and edit it freely.

Frequently asked questions

Can I convert PPT to PPSX without Microsoft Office?
Yes - LibreOffice Impress is free and handles this conversion reliably on Windows, macOS, and Linux.
What is the difference between PPSX and PPTX?
Both use the same Office Open XML format. A .ppsx opens in full-screen slideshow mode by default; a .pptx opens in the editor.
What is the difference between PPSX and PPS?
PPS is the old binary slideshow format (same container as .ppt); .ppsx is its modern OOXML equivalent - smaller and better supported by current software.
Will the converted PPSX play on any computer?
It plays on any system with PowerPoint 2007 or later, LibreOffice Impress, or PowerPoint for the web - pre-2007 versions of PowerPoint cannot open OOXML files.
Learn about the formats: .PPT · .PPSX
Programs that convert PPT: Microsoft PowerPoint · Corel Presentations · Microsoft PowerPoint for Mac · Keynote for Mac · Keynote for iOS · Apache OpenOffice Impress (OpenOffice.org Impress) · LibreOffice Impress