# Convert PPTX to PPT

> Convert PPTX to PPT online for free in seconds. Files are processed in a secure, isolated sandbox and deleted automatically. No sign-up, no watermarks.

URL: https://www.converterrr.com/pptx-to-ppt

- Runs in an isolated cloud sandbox with LibreOffice: files are deleted automatically, and the job uses cloud credits.
- Engines: LibreOffice (cloud).
- API: available. `POST /api/v1/jobs` with `"output_format": "ppt"` (paid plans).
- More: [Presentation converter](https://www.converterrr.com/presentation-converter), [PPTX converter](https://www.converterrr.com/pptx-converter), [Compress PPTX](https://www.converterrr.com/compress-pptx).

## How to convert PPTX to PPT

1. **Add your PPTX files.** Drag and drop PPTX files onto the converter, paste them, or click to browse. You can add several at once.
2. **Choose PPT.** PPT is already selected. Open Options if you want to change quality, size or metadata.
3. **Convert.** Click Convert. Files are processed in a secure cloud sandbox and are usually ready in seconds.
4. **Download your PPT.** Download each PPT file, or everything at once as a ZIP.

## Good to know

- PPTX files are typically used for presentations in PowerPoint, Keynote and Google Slides, while PPT is best for older PowerPoint decks.
- This conversion runs on LibreOffice in an isolated cloud sandbox. Files are encrypted in transit and deleted automatically.

## PPTX vs PPT

|  | PPTX | PPT |
| --- | --- | --- |
| Full name | Microsoft PowerPoint Presentation | Microsoft PowerPoint 97–2003 |
| Type | Presentation | Presentation |
| Extensions | .pptx | .ppt |
| MIME type | application/vnd.openxmlformats-officedocument.presentationml.presentation | application/vnd.ms-powerpoint |
| Best for | presentations in PowerPoint, Keynote and Google Slides | older PowerPoint decks |
| Properties | open standard | legacy format, proprietary |

**PPTX:** PPTX is the modern PowerPoint format for slide decks with layouts, media and animations.

**PPT:** PPT is the legacy binary PowerPoint format used before 2007.

The other way around: [convert PPT to PPTX](https://www.converterrr.com/ppt-to-pptx).

## Related conversions

- [PPT to PPTX](https://www.converterrr.com/ppt-to-pptx) (cloud)
- [PPTX to PDF](https://www.converterrr.com/pptx-to-pdf) (cloud)
- [Keynote to PPT](https://www.converterrr.com/key-to-ppt) (cloud)
- [PPTX to ODP](https://www.converterrr.com/pptx-to-odp) (cloud)
- [ODP to PPT](https://www.converterrr.com/odp-to-ppt) (cloud)

## Convert PPTX to other formats

[PPTX to PDF](https://www.converterrr.com/pptx-to-pdf), [PPTX to ODP](https://www.converterrr.com/pptx-to-odp)

## Convert other formats to PPT

[Keynote to PPT](https://www.converterrr.com/key-to-ppt), [ODP to PPT](https://www.converterrr.com/odp-to-ppt)

## PPTX to PPT: frequently asked questions

### How do I convert PPTX to PPT?

Drop your PPTX file onto the converter above, make sure PPT is selected, and click Convert. When it's done, download the PPT file — it usually takes a few seconds.

### Is it safe to convert PPTX to PPT here?

Yes. Your file is sent over an encrypted connection to an isolated sandbox that's created for your job only, then both the original and the result are deleted automatically.

### Is the PPTX to PPT converter free?

Yes. Cloud conversions like this one use credits, and you get free credits every day (3 without an account, 10 with a free account).

### Will converting PPTX to PPT reduce quality?

No — PPT preserves the content of your PPTX file as faithfully as the format allows.

### Can I convert multiple PPTX files at once?

Yes. Add up to 5 files at a time without an account, 10 with a free account and up to 500 on paid plans, then download them individually or as a single ZIP.

### Can I convert PPT back to PPTX?

Yes — use our PPT to PPTX converter. Note that converting back and forth between formats can't recover detail lost to lossy compression.