PowerPoint Converter
Convert files to and from PowerPoint — free, online, no signup.
up to 50 files at once
auto-delete in 24h · no signup · no watermark
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PPTX is the default PowerPoint format since Office 2007, an Open XML package of slides with text, images, charts, shapes, and animations. It is built for presenting and editing — but to share or print a deck, or to stop anyone editing it, a fixed PDF (one page per slide) is what people reach for.
| Full name | Microsoft PowerPoint Presentation (OOXML) |
| Developer | Microsoft |
| Released | 2007 |
| Type | Document format |
| Typical use | presentations, slide decks, handouts |
| MIME | application/vnd.openxmlformats-officedocument.presentationml.presentation |
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Frequently asked questions
How do I open a PowerPoint file?
PPTX is the default PowerPoint format since Office 2007, an Open XML package of slides with text, images, charts, shapes, and animations. It is built for presenting and editing — but to share or print a deck, or to stop anyone editing it, a fixed PDF (one page per slide) is what people reach for. If a device refuses to open it, the fastest fix is converting it to a more universal format with the converter above.
Is converting PowerPoint files free?
Yes — 10 conversions a day with files up to 200 MB, free, with no signup and no watermarks.