Is this converter free?

Yes, WebConverter is completely free to use. There are no hidden fees, no subscription plans, and no limits on the number of files you can convert.

Do my files get uploaded to a server?

No. All conversions happen entirely in your browser using WebAssembly. Your files never leave your device, ensuring complete privacy and security.

What formats are supported?

This converter supports the following formats: PPTX.

Can I use this offline?

Yes! WebConverter works as a Progressive Web App. Once installed, you can convert files without an internet connection.

Are there file size limits?

No, there are no artificial file size limits. The only limit is your device's available memory and processing power.

PPTX to ODP

Convert a PowerPoint presentation to the open ODP format for LibreOffice Impress.

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Drop your PowerPoint (PPTX) file here

or click to browse. Your file never leaves your device.

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Your OpenDocument Presentation (ODP) file is ready.

Download .odp

About PPTX to ODP Conversion

ODP is the open presentation format used by LibreOffice Impress and Apache OpenOffice. Converting from PowerPoint's PPTX to ODP helps you move decks into open-source tools and avoid vendor lock-in. WebConverter rebuilds the presentation locally and keeps your images in their original encoding.

Frequently Asked Questions

Why convert PPTX to ODP?

ODP is the open, ISO-standardized presentation format. Converting to ODP lets you open and edit your deck in LibreOffice Impress and other open-source office suites.

Is it free and private?

Yes. The converter is free with no sign-up, and the conversion runs entirely in your browser. Your file is never uploaded.

Are images kept?

Yes. Images pass through in their original encoding, so this conversion is fast and lossless for raster content.

Does it work offline?

Yes. After the page loads, conversion works without an internet connection because the engine runs locally.

This converter is powered by the WebDecks.app presentation engine compiled to WebAssembly. Everything runs locally in your browser, so your files are never uploaded. See the open source licenses.