The aidemo blog
Practical, evidence-backed writing on product demo videos — scripting, recording, automating, and keeping them fresh — from the team behind aidemo, the open-source demo engine for coding agents.
AI demo video generators: what the label actually covers
Four unrelated tools rank for 'AI demo video generator,' and two never output a video of your product. A mechanism map so you buy the right object.
AI voiceover for demo videos: quality, cost, and workflow
AI voiceover per minute is settled and cheap. The real questions: which TTS gives you consistency and one-line re-renders, and where a human voice still wins.
Automated product demo videos: regenerate, don't re-record
Four unrelated machines ship under one label. Only one makes 'the product changed' and 'the demo is current' the same event.
Automating product screenshots for docs and marketing
The complete stills playbook: one YAML for every screenshot, a pull request that recaptures them on a schedule, and a visual regression test you get for free.
Letting a coding agent make your demo video
A coding agent can explore your app and write the demo storyboard. Driving the browser live is the one thing it must not do, and here is exactly why.
Captions on demo videos: the accessibility case and the numbers
Most demo views start muted, so the caption is the demo, not the soundtrack: the timing, the formats, and the WCAG rule that decide whether the words land.
Demo video script template: problem, walkthrough, proof
Narration runs about 2.5 words a second, so a demo's runtime is a word budget. Grab a copy-paste script skeleton and two worked scripts, counted line by line.
Rendering demo videos in CI: a GitHub Actions walkthrough
GitHub's runner ships Chrome but not ffmpeg. Here is what a video-rendering job actually needs, how to trigger it, and where the file should land.
Demos as code: commit the storyboard, render the video
A recording is a performance you own and maintain. A spec is text you can diff, review, regenerate, and hand to an agent. That decides everything downstream.
Deterministic browser automation for video capture
A test that flakes just reruns. A demo that flakes ships the stutter. The eight-variable checklist for making one browser flow render the same pixels twice.
How long should a demo video be? The retention math
Most demos run longer than they should, and that is an editing problem. Here is the target length for every placement, plus what to cut first.
How to make a product demo video (that people finish)
The playbook for a demo people actually finish: script first, record second, with the word, scene, and length budgets that decide every second.
Interactive product demos vs video demos: when each wins
One is a program you drive, the other a file that plays anywhere. Where clickable tours beat video, where video wins, and the two costs listicles skip.
Multi-language product demo videos from one recording
Localizing a demo doesn't mean re-shooting it five times. Keep one recorded take, swap the words, and do the honest math on where each locale really costs you.
Open-source demo video tools, scored by license and install reality
Not everything on GitHub is open source. Cap, vhs, Remotion, Revideo, editly, and aidemo, scored on OSI compliance, install friction, and what the pixels are.
Personalized demo videos at scale: the template-render pattern
A merge field with the prospect's name is not a demo that shows their data. Three depths of personalization, priced honestly for a fifty-prospect batch.
What makes a screen recording look professional
The polish people call professional is five named transforms with parameters, not a knack. Here is what each one does and why a bad zoom is a recompose.
README GIFs that update themselves
A 20-second demo GIF can weigh 18 MB, past GitHub's 10 MB ceiling. The format rules, the real size math, and a recapture loop that keeps it honest.
SaaS demo video examples: what the best ones do differently
Six real SaaS demo videos from Vercel, Notion, Loom, Linear, Warp, and Retool, read with a stopwatch and a transcript instead of a mood board.
Screen Studio alternatives for Windows, Linux, and CI
Screen Studio is macOS-only and subscription-only now. Here is the honest, per-platform map of what replaces it on Windows, Linux, and in CI.
Video-as-code tools: Remotion, Revideo, editly, vhs — and real-UI capture
Remotion and Revideo draw every frame, editly stitches clips, vhs replays a terminal, real-UI capture films your product. Five models, one map.
Why every product demo is out of date (and what rot costs)
Linear redrew every header, icon, and nav in one release, and every demo filmed before that day went wrong in every frame. This is how fast demos rot.