Presentation Conversion
Convert PPT to PPSX Online — Free
Fast, free PPT to PPSX converter. No registration required.
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すぐに変換を開始
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変換方法
1
Upload your .ppt file by dragging it into the upload area or clicking to browse.
2
Choose your output settings. The default settings work great for most files.
3
Click Convert and download your .ppsx file when it's ready.
PPTとは？
PPT is the legacy PowerPoint format used before Office 2007. It remains common in archived presentations and older business environments.
形式の詳細
- 正式名称
- Microsoft PowerPoint 97-2003
- 拡張子
- .ppt
主な特徴
- Legacy support
- Wide compatibility
- Microsoft Office
- Presentations
PPSXとは？
PPSX is the modern PowerPoint slideshow format that opens directly in presentation mode. It uses the same Open XML structure as PPTX but starts the slideshow automatically.
形式の詳細
- 正式名称
- PowerPoint Open XML Slideshow
- 拡張子
- .ppsx
主な特徴
- Direct slideshow
- Open XML format
- Auto-play mode
- Modern PowerPoint
PPTとPPSXの比較
| 特徴 | PPT | PPSX |
|---|---|---|
| 正式名称 | Microsoft PowerPoint 97-2003 | PowerPoint Open XML Slideshow |
| 拡張子 | .ppt | .ppsx |
| 最適な用途 | Legacy support | Direct slideshow |
よくある質問
Yes. You can convert up to 5 files per day completely free, with no watermark or registration required. Pro users get unlimited conversions and larger file sizes.
Most files convert in under 30 seconds. Larger files may take 1-3 minutes. Processing runs on our servers, so your device stays fast.
Our converter uses optimized settings to preserve quality. Default settings prioritize quality over file size. You can adjust settings for more control.
Free users can convert files up to 100MB. Pro users can convert files up to 2GB with priority processing.
Yes. Our converter is browser-based and works on any device — iPhone, Android, tablet, or desktop. No app or software installation needed.