Click the "Select File" button above, and choose your PPTX file.
You'll see a preview.
Click the "Convert file to..." button to save your file in the format you want.
Convert PPTX to another file type
The converter easily converts your PPTX presentations to various formats - free and online. No Microsoft PowerPoint or other Page Layout software needed.
The converter also works in reverse, so you can convert other "Presentation Document" formats to PPTX without using software like Microsoft PowerPoint or a similar tool.
The .PPTX file format is the default presentation file for Microsoft PowerPoint based on the Office Open XML standard. Technically, it is a compressed ZIP archive containing a structured set of XML files, images, videos, and layout metadata. It replaced the older, binary-based PPT format in Microsoft Office 2007. Other software like Google Slides and Apple Keynote can also generate or import this format. The main disadvantage of .PPTX is file size and consistency. Presentations often exceed 100MB when users embed high-resolution videos or uncompressed images. Furthermore, opening a .PPTX file on a different computer or a non-Microsoft program often results in broken layouts, missing custom fonts, and misaligned charts. Editing on mobile devices can be particularly frustrating due to rendering limitations. Converting .PPTX is necessary to ensure the content looks the same everywhere. For archiving or sharing across different devices, convert to PDF. If you need to embed slides on a web page without a plugin, convert to JPG or WebP. If you need to share an auto-playing presentation on social media, convert to MP4 or GIF. Drag and drop your file here to analyze and convert it securely right in your browser.
Use Convert.Guru to open and convert your PPTX file.
If you want to convert PPTX file to JPG, MP4, PNG, JSON, YAML, YML or TOML, you can use Microsoft PowerPoint or similar software from the "Slide-based presentation storage" category. In the File menu, look for Save As… or Export….
To convert DBF, SQLITE, SQL, ACCDB, YAML, MDB or JSON files to PPTX, try Microsoft PowerPoint or another comparable tool in the "Slide-based presentation storage" category.
The PPTX Converter Story
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our PPTX converter.