AI B-rolls & motion design
Animated scenes, AI images and stock footage generated from your script — motion design that renders on brand, automatically.
What you get
Matched to what you said
Brollss reads your transcript and proposes a fitting visual for each moment — no scrubbing stock libraries hoping something is relevant.
Three kinds of B-roll
Animated motion-graphics scenes, AI-generated images and licensed stock footage — chosen per scene, so the visual always fits the beat.
Placed for you
Each B-roll lands on the timeline at the right moment with sensible timing. Nudge, swap or regenerate anything you want.
How it works
- 01
Analyze the transcript
The AI reads your transcript, splits it into passages and finds the ones a visual actually helps. Before it runs, the gear beside the button lets you write an instruction, choose the B-roll style (Auto, Templates or Made to measure), and let the analysis draw on your own imported assets.
- We cut the same video three different ways.
- The second one took a quarter of the time.
- Here is what it changes, step by step.
Analysis setupThe B-rollsUse my imported assets- Auto
- Templates
- Made to measure
Picks at each moment: a template when one fits, made to measure otherwise.
Reading the passage, choosing the visual
- Magic Composition
- Stock Video
- ✓Two B-rolls placed where they belong
The button starts the analysis; the gear next to it decides what the analysis is allowed to do. One sentence of guidance, then the B-roll style: Auto picks, passage by passage, between a template and a scene drawn just for it; Templates reaches for a template first and only draws when none fits; Made to measure draws everything for your video, never a template. The AI works inside the limits you just set. - 02
Generate scene by scene
For each passage it picks the kind of B-roll that fits: an animated scene for an idea, a generated image for a specific object, a stock shot for a real place. The choice is made passage by passage, never once for the whole video.
Animated scene
Your words and figures, composed and rendered in your brand colours.
Generated image
For the specific thing no template knows how to draw.
Stock shot
For when the sentence names a place or a gesture that exists for real.
Three kinds, one per tile, each under the product's own label. A single video mixes all three: the choice is made passage by passage. - 03
Review and refine
Every B-roll lands on the timeline, selectable, movable, replaceable. Regenerate whatever misses by saying what you actually wanted, and your own footage is never altered.
0:14- Move
- Regenerate differently
- Delete
B-roll trackNothing is final. A B-roll moves, swaps for another kind, or regenerates from a different instruction — and your own footage is never altered.
Frequently asked
Try it on your next video
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