Should I do a live demo during a conference talk?

Use pre-captured steps instead. They advance on a click, need no network and cannot surface a notification at the worst moment, while keeping the pacing of a live demo. Audiences do not notice the difference; they notice a loading spinner.

How do I make a demo readable from the back of a room?

Zoom into everything, keep one idea per screen, use high contrast because projectors wash out subtle greys, and cut to three or four screens rather than a full walkthrough.

What should the last slide of a demo talk show?

A short URL or QR code pointing at an interactive version of exactly what you showed -- not your homepage. Someone who just watched a specific workflow wants that workflow, not a marketing page to navigate from.

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Demoing From a Stage Without Risking a Live Demo

August 22, 2026

Speaking at a conference or meetup is one of the highest-leverage things a small company can do, and the live demo is the part most likely to go wrong in front of the most people.

Conference wifi, an unfamiliar projector, a resolution you did not test and a login that decides today is the day for a verification code.

Use captured steps, not the live product

Pre-captured screens advance on a click, need no network, and cannot show a notification from your bank at the worst moment. You keep the pacing of a live demo without any of the failure modes.

Audiences do not notice and do not care. What they notice is a speaker apologising to a loading spinner for ninety seconds.

Design for the back of the room

Zoom into everything. Text readable on your laptop is invisible at row twenty.
One idea per screen, because the audience cannot re-read a slide that has moved on.
High contrast. Projectors wash out subtle greys, and a design that looks refined on a monitor can be unreadable on a stage.
Fewer steps than you think — a stage demo should be three or four screens, not a full walkthrough.

The link is the point

The talk builds interest and the link converts it. A short URL or QR code on the final slide, pointing at an interactive version of what you just showed, is what turns a room into traffic.

It should not be your homepage. Someone who just watched a specific workflow wants that workflow, not a marketing page they have to navigate from.

Have the real thing ready anyway

Keep the live product open in another window. Someone will ask a question your captured steps do not answer, and being able to show it is a genuinely strong moment — a controlled, chosen risk rather than one you built the talk on.

The distinction matters: the failure everyone remembers is a scripted live demo collapsing, not a speaker declining to improvise.

Frequently asked questions

Should I do a live demo during a conference talk?: Use pre-captured steps instead. They advance on a click, need no network and cannot surface a notification at the worst moment, while keeping the pacing of a live demo. Audiences do not notice the difference; they notice a loading spinner.
How do I make a demo readable from the back of a room?: Zoom into everything, keep one idea per screen, use high contrast because projectors wash out subtle greys, and cut to three or four screens rather than a full walkthrough.
What should the last slide of a demo talk show?: A short URL or QR code pointing at an interactive version of exactly what you showed -- not your homepage. Someone who just watched a specific workflow wants that workflow, not a marketing page to navigate from.

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