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PPT to PPTX converter

Convert PPT to PPTX online from any device with a free converter.

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About Presentation converter

Convert PPT to PPTX files online with our free presentation converter app. No matter your platform — Windows 10, Mac, Android or iPhone — you can convert PPT files without losing quality.

Popular presentation file formats and apps help users create and share visual content. PPTX, used by Microsoft PowerPoint, supports text, images, and animations. Google Slides is web-based and allows real-time collaboration, often exported as PPTX or PDF. Apple Keynote uses the KEY format and is known for smooth visuals. PDF is also common for sharing presentations in a fixed layout.

Simply change PPT to PPTX by uploading your file, choosing a target format, and clicking Convert. Your file will be ready to download in seconds, no registration required.

Check our video
PPT

PowerPoint Presentation

The PowerPoint Presentation (PPT) file format is a widely used file type for creating and sharing slide-based presentations, developed by Microsoft. It is supported by Microsoft PowerPoint, as well as other applications like Google Slides, Apple Keynote, and LibreOffice Impress, enabling cross-platform compatibility. The format stores slides containing text, images, animations, and multimedia, with advanced features like transitions, embedded objects, and macros for enhanced interactivity and design.

PPTX

PowerPoint Open XML Presentation

PPTX is a file format used for creating and sharing presentations, developed by Microsoft as part of the Office Open XML specification. It is primarily used in Microsoft PowerPoint but is also supported by other presentation software like LibreOffice, Google Slides, and Apple Keynote. The format stores data in a compressed ZIP archive containing XML files for slides, media, and metadata, enabling advanced features like animations, transitions, and embedded multimedia.

Add the conversion API to your app

  • Convert over 200 file formats — including PDF, Word, Excel, HTML, images, and many more
  • Load files from disk, URLs, FTP servers, or cloud storage (such as Amazon S3 or Azure)
  • Customize output settings — rotate and reorder pages, add comments, or apply watermarks
How it works

How to convert PPT to PPTX

Step 1
Click inside the file drop area to upload PPT file or drag & drop PPT file.
Step 2
Click on Convert button. Your PPT files will be uploaded and converted to PPTX result format.
Step 3
Download link of result files will be available instantly after conversion.
Step 4
You can also send a link to the PPTX file to your email address.
FAQ

Questions & Answers

Other Supported Conversions

You can also convert PPT into many other file formats. Please see the complete list below.

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