Can I convert PowerPoint to video without an account?

Yes. Open the studio, choose File → Import PowerPoint, then File → Export video (record)…. You sign in only to use AI on paid credits.

Does the video have a watermark?

No. The recording shows your slides and nothing else: the recorder’s own controls move out of the picture while it records.

Are my speaker notes used for narration?

Yes. The import keeps each slide’s speaker notes, and the notes are that slide’s script. Record it yourself or let a browser voice read it, and each take is mixed into the video at its place.

Are PowerPoint animations kept?

Slide transitions are imported, mapped to the closest one the studio has. Animations on individual elements are not: the import lists the slides that had them and how many, and you add effects again in the studio.

It is MP4 where the browser can record MP4, which current Chrome does, and WebM otherwise. The openslides-render command always writes MP4.

Is my .pptx uploaded?

No. The file is read in your browser tab and the deck is kept in your browser’s storage. Only AI you choose to connect receives the parts of the deck it needs.

Is it free and open source?

Yes. Everything that does not use AI is free, PowerPoint to video included, and the code is licensed MIT OR Apache-2.0 at gitlab.com/open-slides/openslides.

OpenSlides PowerPoint to video

PowerPoint to video

PowerPoint to video in your browser, narrated from your speaker notes.

Last updated 27 October 2026

Yes, you can convert PowerPoint to video for free without installing anything. OpenSlides (openslides.dev) is open-source presentation software that runs in your browser: choose File → Import PowerPoint, and the .pptx becomes a deck whose speaker notes are kept as each slide’s script. Add a voice if you want narration, then choose File → Export video (record)… and the deck is saved to your downloads as a video file — an MP4 in current Chrome, a WebM where the browser cannot record MP4. No account, no watermark, and the file never leaves your browser to be converted.

PowerPoint to video in five steps

Open the studio. There is no sign-up screen in front of it.
Choose File → Import PowerPoint and pick your .pptx. Every shape is placed where it sat, text comes through the template’s placeholders, and pictures, tables, charts (from their data), each slide’s transition and the speaker notes come with it.
Read the import’s warnings. What the studio cannot express exactly is approximated or listed, never silently dropped. Animations on individual elements are not imported: the import names the slides that had them, and you add effects again in the studio.
Add a voice, if you want a narrated video. Each slide’s notes are its script. Record it in your own voice, or have a voice that runs in your browser (Piper or Kokoro) read it. A cloud voice works on your own key.
Choose File → Export video (record)…. The deck opens in a new tab. Click Start recording, choose that tab when the browser asks what to share, and the deck plays through once. When it ends, the video is in your downloads.

That is the whole PowerPoint to video route. The same File menu exports the deck again as a PDF or a static .pptx.

What a PowerPoint to video export gives you

Question	Answer
Input	A .pptx file. The import reads the slides themselves, or, if you choose Import design from a .pptx, only the template’s fonts, colours and layouts.
Output	MP4 where the browser records MP4 (current Chrome does, as H.264 with AAC sound), otherwise WebM.
Narration	The speaker notes become each slide’s script. Every narration take is mixed into the video; a deck with no narration is recorded without a sound track.
Transitions	Each slide’s transition is imported. One the studio does not have becomes the closest one it does, without its direction, and the import says so.
Element animations	Not imported (entrances, exits, emphasis and motion paths). Add them again with the studio’s 33 effects, or drop in any of 263 motion components.
Account, watermark, price	None, none, free. There is no export counter and no paid tier for video.

Converting PowerPoint to video in real time

The in-browser export is a recording of the tab, and it says so. The deck plays at its real speed, so a five-minute deck takes five minutes to export, and a frame that takes too long to draw is dropped rather than slowing the video down. Make the window large before you start, since the capture is the tab, and allow pop-ups for openslides.dev so the recorder can open. In Chrome and other Chromium browsers the capture is cropped to the slide; elsewhere the slide is letterboxed in the whole tab.

For a frame-exact file there is the openslides-render command. It renders a deck folder to MP4 frame by frame on your computer, with subtitles burned in or written alongside, and one MP4 per language if the deck is dubbed. It is not a download yet: it builds from the public source at gitlab.com/open-slides/openslides.

A narrated PowerPoint in another language

Because the notes come across, a PowerPoint to video export can be narrated in a language the deck was not written in. Dubbing translates each script with the AI you connect and speaks it in the new language; the slide holds longer instead of the speech speeding up. Translation uses AI, so it needs your own key, a local model, or paid credits; the browser voices themselves are free. The steps are in how to export a narrated video in several languages.

What stays on your device

The .pptx is read in your browser tab, and the deck, its pictures and its narration are kept in the browser’s own storage. Turning PowerPoint to video uploads nothing: the recorder tab reads the deck back from the same storage, and the finished file goes straight to your downloads. The privacy policy lists the few requests that do leave the browser, such as AI you choose to connect.

FAQ

Can I convert PowerPoint to video without an account?: Yes. Open the studio, choose File → Import PowerPoint, then File → Export video (record)…. You sign in only to use AI on paid credits.
Does the video have a watermark?: No. The recording shows your slides and nothing else: the recorder’s own controls move out of the picture while it records.
Are my speaker notes used for narration?: Yes. The import keeps each slide’s speaker notes, and the notes are that slide’s script. Record it yourself or let a browser voice read it, and each take is mixed into the video at its place.
Are PowerPoint animations kept?: Slide transitions are imported, mapped to the closest one the studio has. Animations on individual elements are not: the import lists the slides that had them and how many, and you add effects again in the studio.
Is the video an MP4?: It is MP4 where the browser can record MP4, which current Chrome does, and WebM otherwise. The openslides-render command always writes MP4.
Is my .pptx uploaded?: No. The file is read in your browser tab and the deck is kept in your browser’s storage. Only AI you choose to connect receives the parts of the deck it needs.
Is it free and open source?: Yes. Everything that does not use AI is free, PowerPoint to video included, and the code is licensed MIT OR Apache-2.0 at gitlab.com/open-slides/openslides.

Try it

Open the studio and import a .pptx to see the whole PowerPoint to video route. Starting from scratch instead? Read slides to video, or see everything the studio does as presentation software on the product page. Looking for more than a converter: a free PowerPoint alternative.