Publish a deck made in Gemini
Copy the code of a Gemini Canvas deck into an HTML file and upload it.
Gemini's Canvas can build a presentation as a web page. Google’s Canvas guide (opens in a new tab) says shared Canvas links open in gemini.google.com (checked 7 October 2026). Put the HTML into Lumdeck and they only need a browser.
1. Ask for HTML, not Google Slides
In Canvas, build a 10-slide presentation about <topic> as one self-contained HTML page:
inline CSS and JavaScript, 16:9 slides, one slide at a time, arrow-key navigation.If Gemini offers to export to Google Slides, that produces a Slides file instead; for Lumdeck you want the HTML code.
2. Copy the code into a file
- In the Canvas, switch to the Code view.
- Copy all of the code.
- Paste it into a plain-text editor and save it as
deck.html(plain text, UTF-8).
3. Upload and share
- In Lumdeck, choose Upload presentation and drop
deck.html. - Fix anything the check reports; see what an upload may contain.
- Choose Share and send the link. See share links.
Tips
- Gemini decks often load Tailwind or fonts from a CDN. The common ones (
cdn.tailwindcss.com, Google Fonts, jsDelivr, unpkg, cdnjs, esm.sh) are allowed. - For per-slide reading, ask Gemini to add the slide events from the deck protocol.
What the recipient sees
A shared Lumdeck viewer opens the presentation in a browser. Unrestricted links need no Lumdeck account; password and e-mail gates ask for their required checks. Test the exact exported deck on the devices your audience uses, especially nested interactive modules. A report control is available from the viewer.
See the current plan limits and supported capabilities and limitations.
For more reusable instructions, see the HTML prompt library and agent publishing overview.
Last updated: 7 October 2026.