About the PPT to PPTX Online Free Tool

The PPT to PPTX Online Free Tool converts the old binary PowerPoint format into the modern XML-based .pptx, keeping slides, layouts, images, and speaker notes.

Conversion runs on the IO Tools server using LibreOffice, the same engine behind most open-source document pipelines. Uploaded files are converted and deleted immediately; they are never stored or shared.

The old .ppt format is being retired across the industry. Modern PowerPoint still opens it in compatibility mode, which disables newer features; converting once removes that restriction.

This tool has no in-browser mode. A browser has no office engine of its own, so if the server is unavailable the tool says so plainly rather than producing a poor imitation.

How to Use PPT to PPTX Online

1. Choose a .ppt, .pps, or .pot file.
2. Convert it to PPTX.
3. Download the converted presentation.

What Carries Over

Slides keep their structure:
- Slides, layouts, slide masters, text, images, tables, and speaker notes all transfer.
- Animations and transitions carry over where the modern format has an equivalent; older custom effects may be simplified.
- VBA macros do not. A .pptx cannot hold macros by design; use .pptm in PowerPoint if you need them.

Common Use Cases

• Modernising an old lecture or conference deck so it opens without compatibility mode.
• Preparing a legacy presentation for Google Slides or a mobile app.
• Unlocking newer PowerPoint features that compatibility mode disables.

Quick FAQ

Will my original file be changed?
No. The PPTX is generated as a separate file.

Are files uploaded?
Yes. Reading the binary .ppt format needs a presentation engine a browser does not have, so the file is sent to the IO Tools server, converted with LibreOffice, returned, and deleted immediately.

Are speaker notes kept?
Yes. Notes attached to each slide are carried across with the slide.

What about a .pps slideshow file?
It converts to an editable .pptx. The slideshow-only wrapper is dropped, which is usually what people want.