AI B-Roll Generator: Add B-Roll Footage in One Click

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An AI B roll generator can automatically create or suggest supporting footage based on your script or main video, making editing much faster.

In this article, wewill highlights some of the best AI B-roll video generators, with their key features, pros, and cons — including both free and paid options.

ai b roll generator

Table of Contents

Part 1: Introducing Best AI B roll Generators In 2026

1 TopMediai AI Video Generator

TopMediai AI video generator is an online AI-powered video generation tool that supports creating videos from text and images (Text→Video / Image→Video). You can enter a script or text prompt, or upload an image, and the AI will generate a video with transitions, background music, voiceovers, and short film effects. It supports short videos (up to 70 seconds) and offers adjustable shot count and aspect ratios (16:9 / 9:16 / 1:1).

topmediai ai video generator

Key Features

Text-to-video: Generate complete videos (with B-roll) from a script.

Image-to-video: Turn static images into animated video clips.

Built-in AI voiceover and background music.

Multiple aspect ratios (16:9, 1:1, 9:16) for different platforms.

Automatic scene transitions and subtitle generation.

Pros
  • Very beginner-friendly interface.
  • Generates B-roll scenes fast (great for short-form content).
  • Includes voiceover and music, reducing extra editing work.
Cons
  • Requires stable internet connection for smooth operation.

How to create B-roll with TopMediai AI Video Generator?

1. Single-Scene Generation (Fast & Cheap with Veo 3)

① Open Image-to-Video or Text-to-Video dashboard in TopMediai.

If Image-to-Video: Upload the image that fits your nursery rhyme, then transform it into a video.

topmediai image to video steps guide

If Text-to-Video: Enter a focused prompt describing the scene you want, such as: “A busy city street with blurred motion, showing people walking and cars passing by in the background”

topmediai text to video steps guide

② Select model: Choose Veo 3 (or Vidu/Topix) for realistic movement and facial accuracy.

③ Adjust duration (6–10s), aspect quality, camera movement (Only Topix model).

④ Adjust settings: Set the duration (6–10s works well for B-roll), choose aspect ratio, quality, and camera movement, then generate your video.

3. Multi-Scene Generation (Mini stories or longer B-roll sequences)

For longer B-roll sequences, the TopMediai AI Video Generator offers a multi-scene mode that can create up to 14 scenes and 70 seconds of content from a single prompt.

Simply describe the scenes you want — either as a short story for automatic scene splitting or with scene-by-scene instructions for more control — and the tool will generate B-roll clips with background music, captions, and optional voiceovers, giving you a complete AI B-roll video generator workflow in one click.

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Free trials

2 Pictory

Pictory is a cloud-based B roll AI generator that creates short videos from blog posts, scripts, or long-form videos. It automatically adds relevant stock B-roll clips over your narration.

pictory ai video generator

Key Features

Script-to-video automation.

Large built-in stock video library.

AI-generated captions and subtitles.

Brand customization (logos, fonts, colors).

Pros
  • Great for repurposing long content.
  • Strong stock footage matching.
  • Simple drag-and-drop editor.
Cons
  • Limited creative control over visuals.
  • Requires stable internet to use.

3 InVideo

InVideo is another powerful AI B roll video generator that helps you build marketing or social videos using templates and B-roll

invideo ai video generator

Key Features

5000+ ready-made templates.

AI script-to-video engine.

Large stock B-roll and music library.

Team collaboration tools.

Pros
  • Professional templates save time.
  • Real-time collaborative editing.
  • Supports many formats (YouTube Shorts, Instagram Reels, etc.).
Cons
  • Watermark on free plan.
  • Some templates look generic.

4 VEED.IO

VEED.IO is a browser-based free AI B-roll generator offering automated subtitles, stock B-roll, and editing tools. It’s great for quick social videos.

veed.io ai video generator

Key Features

Auto-add stock B-roll to uploaded video.

Text-to-video with AI voiceovers.

Built-in video editor and subtitle generator.

Works fully online (no software install).

Pros
  • Fast and easy to use.
  • Free plan available.
  • Ideal for social media creators.
Cons
  • Free plan has watermark.
  • Limited export quality on free tier.

Part 2: Comparison Table of Four Best AI B Roll Generators

Tool Best For Max Video Length Special Feature
TopMediai AI Video Generator Fast script-to-B-roll generation 70 seconds Multi-scene, AI voiceover
Pictory Repurposing blogs / long videos into B-roll 15 minutes Auto scene detection, captions
InVideo Template-based marketing videos with B-roll 10 minutes Thousands of templates, stock B-roll
VEED.IO Quick social media content and B-roll editing 5 minutes Auto subtitles, simple editor

Part 3: FAQs about AI B Roll Generators

1 What is an AI B-roll generator?

It’s a tool that automatically creates or suggests supporting video clips to complement your main footage, saving time in the editing process.

2 How does an AI B-roll video generator work?

It analyzes your script, text prompt, or footage, then generates or selects relevant B-roll clips that match the scene.

3 Which videos benefit most from a B roll video generator?

Short social media content, tutorials, marketing videos, and other clips that need extra visual footage benefit most.

4 Can I export AI B-roll videos for different platforms?

Yes, most AI B-roll video generators support formats suitable for YouTube, TikTok, Instagram, and other platforms.

Conclusion AI B-roll generators have transformed video production by making it faster and easier to add supporting footage. Whether you need short clips for social media, multi-scene sequences, or quick stock-style inserts, these tools can help you create professional-looking videos with minimal effort.

By leveraging AI to generate or suggest B-roll, you save time on editing, enhance visual storytelling, and produce content that engages viewers across platforms.

AI B-roll generator

Free to try

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TopMediai's expert in the field of AIGC, providing insightful reviews & practical tips.

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