Convert PowerPoint to ODP
Ethical Tube's free PowerPoint to ODP converter turns PowerPoint presentations into ODP, the open presentation format of LibreOffice, using LibreOffice, the open-source office suite. It runs entirely in your browser, so your presentations are never uploaded, and it's free with no sign-up or watermark. The first conversion downloads the LibreOffice engine (77 MB) once, and it's cached after that.
Files are converted on your device and never uploaded.
- Price
- Free
- Uploads
- None, it runs on your device
- Sign-up
- Not needed
- Batch
- Unlimited files
- Output
- ODP
- First use
- 77 MB download, once
How it works
How to convert PowerPoint to ODP
Add your PowerPoint files
Drop PowerPoint files onto the converter, click to choose them, or paste from the clipboard. Add as many as you like.
Check the settings
ODP is already selected. The first time, confirm the one-time download of the document engine.
Download your ODP presentations
Each file gets its own download button as soon as it's ready. Download all saves everything in one ZIP file.
The formats
PowerPoint and ODP at a glance
What is a PowerPoint file?
PPTX is the presentation format PowerPoint has used since 2007. It holds slides with text, images, charts, animations, transitions, and speaker notes. It opens in Microsoft PowerPoint, Google Slides, Apple Keynote, LibreOffice Impress, and WPS Office.
What is an ODP file?
ODP is the OpenDocument presentation format, the default in LibreOffice Impress and an open ISO standard. PowerPoint and Google Slides open it, but animations and some layouts may change. It opens in LibreOffice Impress, Apache OpenOffice, Microsoft PowerPoint, and Google Slides.
Good to know
What changes when you convert PowerPoint to ODP
- Text, formatting, tables, and images carry over to ODP.
- Some animations and transitions may change.
- Moving between OpenDocument and Microsoft formats can shift complex layouts, so check documents with heavy formatting.
- The first conversion downloads LibreOffice compiled to WebAssembly (77 MB). It's cached, so later visits start quickly.
- Chinese, Japanese, and Korean text may appear in a fallback font.
- Password-protected documents can't be converted.
- It works best on a computer, because LibreOffice needs a lot of memory.
FAQ
Questions, answered
Is this PowerPoint to ODP converter free?
Yes. It's completely free, with no sign-up, no watermark, and no limit on how many files you convert. It costs Ethical Tube nothing to run, because the conversion happens on your own device rather than on a server.
Are my files uploaded anywhere?
No. The conversion runs inside your browser with LibreOffice compiled to WebAssembly, so your files never leave your device. Once the page and the engine have loaded, it even works offline.
Why is there a download the first time?
The conversion uses LibreOffice, the open-source office suite, compiled to run inside your browser. It's about 77 MB, downloads once from Ethical Tube's own server, and is cached for next time. Your documents are never uploaded.
Can I convert several PowerPoint files at once?
Yes. Add as many as you like. They're converted one after another, and you can download each ODP file as soon as it's ready or all of them in one ZIP file.
Does it work on iPhone, Android, Mac, and Windows?
It works in Chrome, Edge, Firefox, and Safari, but it's built for computers. LibreOffice needs about 1 GB of memory, which many phones can't spare.
What can open an ODP file?
LibreOffice Impress, Apache OpenOffice, Microsoft PowerPoint, and Google Slides.
Is there a file size limit?
There's no upload limit because nothing is uploaded. The practical limit is your device's memory: everyday files are fine, and most computers handle documents with hundreds of pages.
Keep converting
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