Convert PPS to PPTX
Turn slideshow-only .pps and .ppsx files into editable PPTX presentations — instantly in your browser, with no upload and no sign-up.
Everything you need to edit your slideshow
Instant PPSX to PPTX
A .ppsx is structurally identical to a .pptx, so it converts natively in a second — no external engine, no waiting.
Legacy PPS Supported
Binary .pps files are converted through a built-in LibreOffice engine that runs entirely in your browser.
Editable Output
The result opens in edit mode, so you can finally add, delete, or reorder your slides.
100% Private
Everything runs locally — your file never leaves your computer, so even confidential decks are safe.
Slides & Notes Preserved
Slide content, images, and speaker notes carry over intact to the editable file.
Free & No Sign-Up
No account, no watermark, no usage limits. Convert as many slideshows as you like.
Why convert a slideshow to a presentation?
A .pps or .ppsx file opens straight into slideshow mode — perfect for presenting, frustrating when you actually need to make a change. PowerPoint hides the editing interface for slideshow files, so you're stuck: you can watch, but you can't touch. Converting to PPTX unlocks the file, opens it in edit mode, and makes it compatible with every editor — PowerPoint, Google Slides, LibreOffice, and more. The conversion keeps your slides, images, and speaker notes intact, so it's safe to do right before a big edit session.
How to convert PPS to PPTX
Three quick steps, all in your browser.
Add your slideshow
Drag and drop one or more .pps or .ppsx files onto the page. Each file converts automatically — no button to press.
Review the result
Each file is confirmed as an editable PPTX with its new name and size. Legacy .pps files take a few seconds longer while a built-in engine rebuilds them.
Download and edit
Download the .pptx and open it in edit mode — in PowerPoint, Google Slides, LibreOffice, or any compatible editor.
A note on slideshow conversion
A .ppsx is structurally identical to a .pptx — the file is a standard PowerPoint package either way; only the main-part marker differs. The conversion flips that marker, so the result is byte-faithful to your original content. Legacy binary .pps files are different: they're rebuilt by a LibreOffice engine running in your browser, so layout and formatting carry over with high fidelity, though very complex animations can be simplified. Converting never adds watermarks, never uploads your file, and the result always opens in edit mode.