PPTX to PPSM Converter
Turn PPTX into PPSM slide shows — free online
Auto-Play Presentations
Convert your PPTX into a PPSM that launches in slideshow mode automatically — ideal for demos, trade shows, and self-running displays.
Secure Processing
Your PPTX upload is deleted right after conversion completes. PPSM downloads are purged from Convertio servers within 24 hours.
Server-Side Conversion
Processing runs entirely on Convertio servers — your device handles no heavy lifting. Works on any computer, tablet, or phone.
How to convert PPTX to PPSM
Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.
Choose ppsm or any other format you need as a result (more than 200 formats supported)
Let the file convert and you can download your ppsm file right afterwards
About formats
Frequently Asked Questions
PPSM opens straight into slideshow mode and supports VBA macros — perfect for kiosk displays, automated demos, or interactive presentations.
Microsoft PowerPoint plays PPSM files in slideshow mode by default. To edit, right-click and choose Open in PowerPoint or use LibreOffice Impress.
All animations, slide transitions, and timing from your original PPTX are preserved in the PPSM output — the show plays as designed.
Yes, but it won't open in edit mode by default. In PowerPoint, right-click the file and select Open, or open PowerPoint first and browse to it.
PPTX to PPSM conversion is free. Premium tiers provide larger upload sizes and faster processing for professional use.
Both auto-play as slide shows. PPSM additionally supports embedded VBA macros, making it suitable for interactive or automated presentations.