Are my PPT files uploaded anywhere?

Yes — this conversion needs software that cannot run in a browser, so the file is uploaded over an encrypted connection. It is deleted as soon as the job finishes, and the result is removed after 60 minutes.

Is converting PPT to PPTX free?

The free plan covers three server conversions a day, for files up to 25 MB. There is no watermark on the result.

Does converting PPT to PPTX lose quality?

PPT and PPTX describe content in fundamentally different ways, so the conversion is a reconstruction rather than a copy. The result is faithful, but not byte-for-byte equivalent. Formatting survives; macros, embedded objects and revision history usually do not.

Do I need to install anything to open PPTX files?

No. The conversion runs on our side and gives you a finished PPTX file; opening it needs whatever software normally handles PowerPoint Presentation.

PPTtoPPTX

Convert PPT to PPTX

Up to 3 files at once, 100 with Pro. Mixed formats are fine.

You can convert PPT to PPTX free and without an account: drop the file above and the PPTX is ready to download in a second or two. The file is sent over an encrypted connection, converted on our server and deleted as soon as the job finishes.

What PPT and PPTX are for

The old binary PowerPoint format.

The PowerPoint format since 2007. Slides, notes, embedded media.

How to convert PPT to PPTX

Drop your PPT file onto this page, or click to pick one.
Choose PPTX as the target and start the conversion.
Download the finished PPTX file.

PPT vs PPTX: what changes

PPT compared with PPTX
	PPT	PPTX
Full name	PowerPoint 97-2003 Presentation	PowerPoint Presentation
File extension	.ppt	.pptx
Media type	application/vnd.ms-powerpoint	application/vnd.openxmlformats-officedocument.presentationml.presentation

Quality: The result is a close reconstruction rather than an exact copy. Check it before relying on it.
Where it runs: This conversion runs on our server, because it needs software a browser cannot run.
What can be lost: Formatting survives; macros, embedded objects and revision history usually do not.

PPT to PPTX: common questions

Are my PPT files uploaded anywhere?: Yes — this conversion needs software that cannot run in a browser, so the file is uploaded over an encrypted connection. It is deleted as soon as the job finishes, and the result is removed after 60 minutes.
Is converting PPT to PPTX free?: The free plan covers three server conversions a day, for files up to 25 MB. There is no watermark on the result.
Does converting PPT to PPTX lose quality?: PPT and PPTX describe content in fundamentally different ways, so the conversion is a reconstruction rather than a copy. The result is faithful, but not byte-for-byte equivalent. Formatting survives; macros, embedded objects and revision history usually do not.
Do I need to install anything to open PPTX files?: No. The conversion runs on our side and gives you a finished PPTX file; opening it needs whatever software normally handles PowerPoint Presentation.