PPT to PPTX converter
Convert PPT to PPTX online for free, with the layout and quality you'd expect from a desktop app but none of the setup.
Convert PPT to PPTX
Drop your files to try StandardsPDF. This tool is available in the full workspace.
Keeps slides, order and embedded media
Preserves layout so decks look right on any screen
Files auto-deleted from our servers within 60 minutes
Works in any modern browser – desktop, tablet or phone
How it works
Convert PPT to PPTX in 3 steps
Upload or drag in your PPT file
Choose your output options if you need them
Download the finished PPTX
Private by default
Files are encrypted in transit and deleted within 60 minutes.
Fast
Most jobs finish in under 10 seconds. No queueing.
No signup on free tier
5 documents per day, no credit card required.
FAQ
Frequently asked questions
How do I convert PPT to PPTX?+
Upload your PPT file (or drag it onto the box above), wait a few seconds while StandardsPDF converts it in your browser, then download the PPTX. There is nothing to install and no account required.
Is converting PPT to PPTX free?+
Yes. PPT to PPTX conversion is free on the StandardsPDF free tier – no watermark, no signup, and no credit card. A Pro tier lifts the file-size and daily limits if you need more.
Will the PPTX keep the quality of my PPT?+
StandardsPDF aims for the highest fidelity the PPTX format allows, so your presentation comes through looking as close to the original as possible. Some format-specific details may adapt where PPTX works differently to PPT.
Do slides stay in order when converting PPT to PPTX?+
Yes – every slide from your PPT, its order and embedded media are preserved so the PPTX matches the original deck.
Do I need to install anything to convert PPT to PPTX?+
No. Converting PPT to PPTX runs entirely in the browser – no desktop software, no extensions and no account for the free tier.
What is the maximum PPT file size I can convert to PPTX?+
Up to 100 MB per PPT on the free tier and 2 GB on Pro. If your PPT is larger, split it first or upgrade for the higher limit.
Can I convert several PPT files to PPTX at once?+
Yes – add multiple PPT files and StandardsPDF processes them as a batch, returning a PPTX for each.
Can I convert PPT to PPTX on my phone?+
Yes – the PPT to PPTX converter is fully responsive and works in Safari, Chrome and other modern browsers on iOS, Android and iPadOS.