Convert PPT to PPTX Online
PPT and PPTX serve different purposes. Convert PPT to PPTX here when you need slide decks, business presentations, training material.
How to convert PPT to PPTX
- Upload your PPT file. Drag it onto the box above or click to browse. Files up to 200 MB are accepted.
- Choose PPTX as the output. The target format is pre-selected on this page — just press “Convert now”.
- Download the result. Conversion runs on our own server and the download starts as soon as it is ready. Your files are deleted automatically.
Why convert PPT to PPTX?
PPT is the legacy binary PowerPoint presentation format. PPTX is the modern PowerPoint presentation format. That difference is exactly why converting between them is so common: PPTX is the better choice for slide decks, business presentations, training material.
PPT vs PPTX: key differences
| PPT | PPTX | |
|---|---|---|
| File type | legacy | editable |
| Typical use | legacy presentations | slide decks, business presentations, training material |
| Compatibility | Superseded by PPTX. | Supported by PowerPoint, Keynote, Google Slides and LibreOffice. |
Tips for a clean PPT to PPTX conversion
- Superseded by PPTX.
- Use the highest-quality source PPT you have — converting a compressed file again cannot restore lost detail.
- If you only need a smaller file, try a lower resolution or bitrate instead of a different format.
- Keep the original PPT until you have checked the converted PPTX opens the way you expect.
Frequently asked questions
How do I convert PPT to PPTX?
Upload your PPT file to the converter on this page, make sure PPTX is selected as the output format and click “Convert now”. When the conversion finishes the download starts automatically.
Is this PPT to PPTX converter free?
Yes — it is completely free and needs no account. Files up to 200 MB are accepted, and heavy use is rate-limited so the service stays available for everyone.
Will converting PPT to PPTX reduce quality?
Because both formats preserve the original data, converting back and forth does not degrade quality.
What is a PPT file?
PPT is the legacy binary PowerPoint presentation format. Its technical name is Microsoft PowerPoint 97-2003 and it is typically used for legacy presentations.
What is a PPTX file?
PPTX is the modern PowerPoint presentation format. Its technical name is Office Open XML Presentation and it is typically used for slide decks, business presentations, training material.
Can I convert PPT to PPTX on my phone?
Yes. The converter runs in the browser on Android, iOS, Windows, macOS and Linux — no app installation is required.
Are my files kept on the server?
No. Uploaded files and converted results are deleted automatically a short time after the conversion finishes.