AI B-Roll Generator
Auto-generate B-roll that matches your video topic

B-roll that matches your video — automatically synced
AI adds relevant B-roll to the right moments.
No manual editing required.
Skip the stock library — AI finds the perfect footage
Kapwing's AI B-roll Generator analyzes your video transcript to identify key themes, topics, and visual moments, then automatically matches them with high-quality B-roll.
No more hunting through endless stock libraries or guessing which clips fit where. AI instantly pulls relevant footage and syncs it to your narrative, frame by frame.
The result: tutorials, reviews, and explainer videos that look professionally edited — in a fraction of the time. Go from rough cut to polished final product faster, with visuals that enhance your message.

Save time with automatic timeline placement
Kapwing removes the need to scrub through footage or manually drag assets to the timeline — AI does handles placement for you.
Every key moment in your video gets matched with relevant, high-quality B-roll footage, synced automatically to your narration.
Designed for voice over-heavy content like tutorials, product reviews, podcasts, and educational videos. Your message is visually supported, viewers stay engaged, and you save hours of editing time.

Match every moment with AI-generated clips
The AI B-roll Generator pulls from a vast library of stock footage powered by iStock, Pexels, and Pixabay. When you need something more specific, generate completely custom visuals instead.
Create one-of-a-kind B-roll from text prompts using models like Sora, Veo, and GPT. Generate video clips, images, or animated scenes tailored to your exact vision.
Stock footage for speed. Custom generation for precision. Choose the approach that fits each moment in your video.

What's different about Kapwing?
How to add b-roll automatically
- Step 1Upload video
Upload a video with spoken audio to Kapwing.com. Speech is required so the AI can understand your content and context.
- Step 2Add AI B-roll
Open the Images tab in the left-hand sidebar and select "Smart B-roll". The AI automatically generates and inserts relevant B-roll that matches your video in just a few seconds.
- Step 3Edit and export
Make any final edits in the timeline or generate custom B-roll using the AI Image Generator, then export your project. Download the video file or share it instantly using a unique Kapwing link.
Edit B-roll in one online workspace
Collaborate as a team, globally, and on the go
The AI B-roll Generator lives inside Kapwing's full-featured online editor, so creators, teams, and businesses can edit together in real time.
Trim your B-roll, reposition it, or resize it directly on the timeline. Add subtitles, voice overs, AI Avatars, or upload brand assets without leaving your browser.
Every edit happens in the same place — no downloading files, switching apps, or re-uploading to different software.
Collaborators can review, comment, and make edits directly in the workspace. When you're done, export in any aspect ratio or publish directly to YouTube, TikTok, Instagram, and more.

Built for every type of video content
From podcasts to product demos — add relevant B-roll automatically

Talking-Head Videos
Creators speak directly to camera while automatic B-roll cuts in to show examples, locations, products, screenshots, or actions

Podcast Clips
Podcast recordings are transformed into shareable video clips with AI B-roll that matches the discussion and animated waveforms to reduce drop-off

UGC Content
UGC creators and influencers use B-roll to cut away from voice over, showing real product use, reactions, and results without breaking the narrative

Product Videos
Kapwing’s AI B-roll maker automatically illustrates product features and key messages, reducing the need to source, upload, and place supporting visuals manually

Explainer Videos
Creators enhance explainer videos by adding contextual footage, icons, or screenshots so viewers can see what’s being explained rather than just hear it

Interview Clips
Media outlets and journalists use AI B-roll to insert relevant footage that keeps interview clips dynamic while preserving the meaning of the original conversation

Storytime Videos
Social media creators and influencers use B-roll to make narrated stories more engaging, adding visuals that match the topic or emotion to improve pacing and retention

Short Promos
Key moments, features, or benefits are reinforced visually with B-roll while the creator delivers a concise message — common in ads and announcement clips on YouTube Shorts

Training Content
HR teams and L&D teams enhance onboarding and training videos with relevant visual examples, improving clarity and engagement at scale
Already transforming video creation across industries
Hear directly from the teams who publish faster, collaborate better, and stay ahead.
Frequently Asked Questions
We have answers to the most common questions that our users ask.
What is B-roll?
B-roll is supplemental video footage that supports and enhances your main shots (A-roll). It’s used to add visual context, show examples, cover cuts, and keep videos engaging — like showing product close-ups, locations, or actions while someone speaks on screen.
With an AI B-roll generator, this process is automated. The AI understands your video’s topic and script, then selects and inserts relevant B-roll into the right sections of your video.
Is Kapwing's AI B-roll Generator free?
Yes, anyone can try Kapwing’s AI tools for free,. Our AI tools run on a credit system, with each feature costing a set number of credits. For maximum creativity and the best value, upgrade to a Pro account to unlock the full power of AI-driven content creation.
How does the AI B-roll Generator work?
The AI B-roll Generator analyzes your transcript to understand what each section is about. It then automatically finds and inserts relevant B-roll that visually matches those moments. Instead of searching for stock clips or editing by hand, the AI places B-roll directly into parts of your timeline. You can keep everything as-is or quickly swap, trim, or remove clips to fine-tune the final video.
Can AI generate custom B‑roll footage, or does it just pull stock clips?
Yes, Kapwing can do both. Kapwing’s Smart B-roll automatically adds matching stock B-roll to your video based on its content. If you want something more specific, you can also generate custom B-roll using Kapwing’s AI generation tools.
Simply open the AI generator, describe what you want, and create original images, video clips, or scenes from a prompt — then drop them straight into your project.
Pros and cons of automated B‑roll vs manual editing
Automated B-roll (AI-powered)
- Pros: Fast, hands-free, and scalable. AI analyzes your video’s topic and structure, then adds relevant B-roll automatically.
- Cons: May need light review or swaps for very specific brand visuals or niche topics.
Manual B-roll editing
- Pros: Maximum creative control and precision. Best for highly stylized edits or exact visual requirements.
- Cons: Time-consuming, repetitive, and harder to scale across many videos.
Does AI understand my video content to choose relevant B‑roll?
Yes, Kapwing’s AI analyzes your transcript to understand what each part of your video is about. It then selects and places B-roll that matches those moments.
Can I edit or customize the B‑roll in my timeline?
Yes, All B-roll added by Kapwing’s AI appears directly in the Kapwing Studio timeline, where it’s fully editable. You can trim clips, swap footage, reposition B-roll, adjust timing, apply filters, or remove clips entirely.
What file formats does Kapwing support?
Kapwing supports most major video, image, and audio formats, includingMP4, MOV, WebM, AVI, OGG, 3GP, MPEG, MP3, M4A, JPEG, PNG, and more.
Do I need audio or a script to auto-add B-roll?
Yes. To automatically add B-roll, Kapwing needs audio or text to analyze. The AI uses transcript and script analysis to understand your video’s topic and match visuals to specific moments.
Discover Resources
Tips, templates, and deep dives to help you create faster and share with confidence.
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