PPTX Remote

Present a PowerPoint deck from any computer and control it from your phone.

👉 https://aidenjeong8.github.io/pptx-remote/

How to use it

1. Open the site on the computer you're presenting from and drop in a .pptx file.
2. Scan the QR code with your phone's camera.
3. Click Present. Your phone now has back/next buttons, your speaker notes, and a list of slides by title that you can tap to jump to any one.

There's nothing to install and no account. The computer and phone don't need to be on the same network.

How it works

Everything runs in the browser. The site is a static GitHub Pages site with no backend.

• Rendering: the .pptx is parsed and drawn in the browser by @aiden0z/pptx-renderer. Speaker notes are read from the file with JSZip.
• Phone link: the presenter page and the phone connect directly with WebRTC through PeerJS. PeerJS's free public server only introduces the two devices. The deck then goes straight from the computer to the phone over an encrypted data channel, and the phone renders its own copy for thumbnails and notes. Slide changes travel the same way, in both directions.

docs/
  index.html    landing page + presenter
  remote.html   phone remote
  js/deck.js    shared: load a .pptx, render slides, read notes
  vendor/       pinned copies of pptx-renderer 1.3.0, PeerJS 1.5.5, JSZip 3.10.1, qrcode-generator 1.4.4

To run it locally, serve docs/ with any static server, for example cd docs && python3 -m http.server.

Limitations

• Animations and transitions aren't played: each slide shows in its finished state.
• Fonts that aren't embedded in the file or installed on the computer are replaced with similar ones.
• Browsers only allow fullscreen after a click on that computer, so start the presentation there.
• On some strict networks (certain cellular carriers or corporate firewalls) a direct WebRTC connection can't be made. Putting both devices on the same Wi-Fi fixes it.

License

MIT. Bundled third-party libraries keep their own licenses; see docs/vendor/.