Presentations

Record a presentation

You present the deck exactly as you would live, and a recording is made of it: the slides, your narration, your camera in a corner, and any marks you draw. When you stop, you download the file. Nothing is uploaded and nothing is hosted.

Create a presentation with OneCraftThe three quality settings, what gets composited into the frame, and where the file goes

Set the camera up before the countdown

Recording has two stages on purpose. Set up camera turns on the preview so you can see yourself, place the camera overlay by dragging it and size it before anything is being captured. Then Begin recording runs a three, two, one countdown and starts. That order exists because repositioning your own face mid take is the single most common reason a recording gets thrown away.

Three quality settings, described by what they cost

1080p at 8 megabits per second for smaller files. 1440p at 18, labelled sharp text, which is the one to use when slides carry tables or code. 4K at 40, pristine and correspondingly large. All three record at 30 frames per second. The slides are captured at their native size and scaled up to the output resolution, so higher settings buy sharper type rather than more detail.

Everything on the slide is composited in

Not just the slides. Your camera overlay wherever you positioned it, the highlighter and pen strokes you draw, and the spotlight ring following your cursor all end up in the frame. That is what makes it a walkthrough rather than a slideshow with audio: you can circle the number you are talking about and the viewer sees it happen.

It streams to private browser storage

Chunks are written to a private area of your browser's storage as you record rather than being held in memory, which is why a forty minute take does not run the tab out of memory. The consequence is a browser floor: Chrome or Edge 102 and up, Firefox 111 and up, or Safari 17.4 and up. On anything older, recording reports that it is unavailable rather than failing halfway through.

You get a WebM file, and that is the whole delivery

Stopping ends the take and Download saves it, named from the deck title and a timestamp. The container is WebM with VP9 or VP8 video and Opus audio, which every modern browser plays and most video editors accept. It is not uploaded anywhere, so there is no link to share and no player to embed: you put the file where your audience already is, whether that is a drive, a learning system or a message.

How it works, in three steps

  1. Step 1

    Choose camera, microphone and quality

    In the record menu. 1440p is the sensible default when slides carry tables or small text.

  2. Step 2

    Set up the camera, then place the overlay

    The preview runs before recording so you can drag and size your camera without it being in the take.

  3. Step 3

    Present, then download

    A three second countdown, then present as normal with pause and resume available. Stop, then Download saves the WebM.

The full walkthrough with screenshots is in the guide Record a presentation with voiceover.

Limits worth knowing

See it on a finished piece

Questions people ask

Where does the video end up?

On your machine. It streams to private browser storage while you record and Download saves it as a file. It is never uploaded, so there is no link to share.

Can I get an MP4?

Not directly. The recording is WebM with VP9 or VP8 video and Opus audio. Any video editor or a conversion tool will turn it into MP4 if a platform demands one.

Can I pause partway through?

Yes. Pause and resume are both available while recording, and the elapsed timer holds while paused.

Do my pen marks appear in the video?

Yes. Highlighter strokes, pen strokes and the spotlight ring are composited into the frame along with your camera overlay.

Make your own presentation

The button opens the generator with this use case already described. Change the wording to match yours, generate, then edit anything you like.

Create a presentation with OneCraft

Related pages

More finished work of this kind is on the presentation examples hub.