Convert PPT to PPTX online in seconds — free, with no sign-up. PPTX is lossless and ideal for editable presentations. Your files are encrypted and deleted automatically after 24 hours.
PPT
Microsoft PowerPoint (legacy) — The older binary PowerPoint format, superseded by PPTX.
PPTX
Microsoft PowerPoint — PowerPoint's format storing slides, animations and embedded media.
How to convert PPT to PPTX
- 1Upload your PPT file
Click “Choose a file” or drag and drop your PPT file onto the page — no sign-up or email needed.
- 2Convert to PPTX
PPTX is already selected as the output. Open Options to fine-tune quality if you like, then click Convert.
- 3Download your PPTX file
Your PPTX file is ready in seconds — click Download to save it. Files are automatically deleted after 24 hours.
PPT vs PPTX
| PPT | PPTX | |
|---|---|---|
| Full name | Microsoft PowerPoint (legacy) | Microsoft PowerPoint |
| Type | Presentation | Presentation |
| Compression | Lossless | Lossless |
| Best for | legacy decks; converted to PPTX or PDF | editable presentations |
Frequently asked questions
Does converting PPT to PPTX lose quality?
Converting PPT to PPTX preserves your text, images and most formatting. Very complex elements — macros, live formulas or unusual fonts — may not carry over perfectly, but the content stays intact.
What's the difference between PPT and PPTX?
Microsoft PowerPoint (legacy) (PPT) is lossless and best for legacy decks; converted to PPTX or PDF. Microsoft PowerPoint (PPTX) is lossless and best for editable presentations. Convert PPT to PPTX when you need a presentation for editable presentations.
Is the PPT to PPTX converter free?
Yes — converting PPT to PPTX is completely free. There's no watermark, no sign-up and no email required, and you can convert as many files as you like.
Are my PPT files private and secure?
Yes. Your uploads are encrypted in transit, processed privately, and automatically deleted within 24 hours. We never share, sell or look at your files.
Can I convert PPT to PPTX on iPhone, Android, Mac or Windows?
Yes. The converter runs entirely in your browser, so it works on any device — iPhone, iPad, Android, Mac, Windows or Linux — with nothing to download or install.
How long does it take to convert PPT to PPTX?
Most files convert in a few seconds. Larger files take a little longer, and your upload speed is usually the limiting factor. There's no queue and no waiting for an email.
What else can I convert PPT files to?
Besides PPTX, you can convert PPT to ODP, PDF and more — see the full list of PPT conversions below.
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Last updated July 2026