Product demos
Walk through features with split-media, step-by-step, and code slides — narrated and ready to embed.
AI decks → narrated video
Turn an idea into a narrated demo video
Describe what you want. Hiroi Presents writes the deck, designs every slide on a smart layout, narrates it, and exports a polished video — all in your browser.
No credit card to start
26 typed layouts
Renders in your browser
Everything it takes to ship a narrated video, in one place
AI deck drafting
26 typed layouts
One-click themes
Timed narration
In-browser export
26
Typed layouts the AI can't break
3
Free decks to start, no card
1
Render path — preview equals export
16:9 / 9:16
Export for web or social
Made for
One prompt, three kinds of story
Hiroi Presents reads your intent and shapes the narrative, pacing, and layouts to match.
Educational content
Explain a concept clearly with agendas, key-point slides, and big-stat moments your audience remembers.
Pitch decks
Open strong, land the numbers, and close on a confident call to action — as a shareable video.
The problem with AI slides
Most generators free-draw, so the layout breaks
Hiroi never paints pixels onto a canvas. The AI picks from twenty-six typed layouts and fills named slots, so spacing, hierarchy, and alignment stay clean on every slide.
- Twenty-six typed layouts the AI can't break
- Named slots keep hierarchy and spacing intact
- Regenerate one slide against the original plan
Re-theming, instantly
Recolor a whole deck without redoing a single slide
Curated palettes and type pairings restyle the entire deck in one click — and the preview is frame-for-frame what you export. Try it: flip this deck between light and dark.
- One render path — preview equals export
- Themes restyle every slide at once
- Contrast stays readable on any background
Silent decks don't sell
Every slide ships with a real, timed voiceover
Hiroi writes a narration script for each slide and synthesizes it to speech, paced to the slide. Edit the words and the timing re-paces automatically — then record the whole thing as video.
- AI-written narration, grounded in your sources
- Text-to-speech timed to each slide
- In-browser export to 16:9 or 9:16
How it works
From blank page to video in three steps
1
Prompt
Describe your topic and audience. The AI plans a narrative arc and fills each slide on a smart, on-brand layout.
2
Edit
Refine copy, swap layouts, tune the narration, and pick a theme in a live editor that previews exactly what you'll export.
3
Export video
Render a narrated MP4 or WebM right in your browser — in 16:9 for the web or 9:16 for social.
Prompt to render
Watch a sentence become a finished frame
You write one line. Hiroi plans the arc, designs the slide, writes the voiceover, and renders a video you can ship — without leaving the browser.
Your prompt
"A 90-second product demo that shows how Hiroi turns a prompt into a narrated video."
Product demo
From prompt to publish
Your next demo is one prompt away
Start free with three decks. Upgrade when you're ready to drop the watermark and export in 1080p.