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Submagic is the best AI tool to create captivating short-form videos in seconds for teams and businesses.
Free AI B Roll generator for engaging videos
Generate B rolls in seconds, automatically. Submagic AI understands your transcript and contextually adds relevant b-roll footage. Want more control? Fine tune the clip, location, style, and more in the best AI B roll generator online.
Trusted by the best agencies & video editors across the world
The B-roll footage bottleneck
Visual storytelling is an art and a business. It should be enjoyable.
B-rolls should not be the reason your video does not go live. Most creators spend hours on just B-rolls for their video content. From finding generic stock footage, style, placement, and transitions, to file management, and a host of other hurdles. Filmmaking should be enjoyable and efficient.
Submagic eliminates the busywork by letting you add contextual B-rolls in just one click—right from your transcript. Automate B-rolls or manually add them. Either way, you’re done in minutes, and you’d be having fun doing it.
You can say, it’s the B-rolls Royce of B-roll generators.
Why Submagic B-Roll footage generator
Time
Submagic AI B-roll generator is built like a productivity tool. Our creators save hours each week because of how easy it is to use our AI video editor. Choose to manually insert B-rolls or use our Magic AI B-roll generator to automate the entire process—in 1 click.
Brand
No matter the topic of your video, or yours or your clients’ brand, you have access to thousands of B-roll shots for perfect cutaways. Easily edit the style and location and get that video published to your social media in minutes.
Quality
Create videos with high uncompromising production quality. B-roll video can match your main footage without having to shoot b-rolls for specific videos. Cut your post production time down without compromising on your video production quality.
AI B-roll generator features
B-roll features to match your primary footage
Precision
Add B-rolls at the precise time and set for how long it should be on screen. Editing with precision has never been easier. When timing is important - if it’s a comedy video, or educational, you can add B-rolls for maximum effect at just the right time. Splice your scenes up for better control.
B-roll footage
Choose from a host of supplemental footage. Search by keyword and choose from various types of b-rolls. From royalty free or premium images, movies, Gifs, static images, or even upload your own and save them to your library for easier access next time.
Layout
Get insane control over every word, space, sentence, & more - without slowing you Choose whether your B-roll should cover the entire viewable area or whether it should have rounded corners and more - whatever piques visual interest. Complex video editing process is so easy and there’s no learning curve. Anyone can be a pro.down. Edit by transcript or switch to timeline editing mode. Content creation has never been more fun.
Effects
Break the monotony of b-rolls. Engage your viewers by easily adding zoom effects. Choose from a variety of viral zooms for close-ups that’s perfect for what you are trying to communicate. Some of the zoom effects are fast zoom, crash out zoom, crash, smooth zoom in, expo zoom, linear zoom, and more.
Sound
Add accompanying sound effects for your b-roll. If for some reason your main story calls for secondary footage of a talking head, then add a talking head b-roll and perhaps add a sound effect of “Blah blah blah...” The production process has never been more fun.
Magic B-rolls
Magic B-rolls is all the above features bundled into one click. If choosing cutaway shots for your alternative footage is too much to handle at any moment, let AI automate the entire process. Simply click on Magic B-Rolls and Submagic will automatically insert relevant B-rolls to emphasize your message.
Magic B-roll secrets revealed
Submagic is the simplest and fastest way to add b-rolls to your videos.
Try Magic B-Rolls Now
1. Upload Your Video
Upload your video and wait for the captions generation, which takes 1 minute. Then, click on the “B-rolls” page.
2. Click on “Magic B-rolls”
The “Magic B-rolls” button adds b-rolls in a few seconds. You can still manually add B-rolls by clicking on the “+” sign in the subtitle line you want!
3. Download your video
Once done, you’re good to go. Click on “export” at the top right of your screen. As easy as that!
When to use B-rolls
Here are some great b-roll use cases.
Try Magic B-Rolls NowHide cuts between A-Rolls
When you're editing talking-head footage (a-roll), abrupt cuts can feel jarring. B-roll acts as a smooth visual bandage—seamlessly covering jump cuts while keeping the audience locked in.
Visualizing voiceovers
Adding b-roll under a voiceover brings the story to life. Whether it's panning shots of a city or reenactments of a past event, this extra footage helps viewers see what they’re hearing.
Establishing shots
Establishing shots are classic Hollywood moves—used in every shot list and storyboard to orient viewers. A quick wide-angle of a city skyline or room sets the tone before the main action begins.
Enhancing TikToks
On TikTok, attention spans are brutal. Dropping in b-reel or switching to different angles every 3–5 seconds boosts retention and makes your short-form content feel dynamic and intentional.
Camera angles
Using b-roll with creative camera angles—like overheads, close-ups, or slow panning shots—can make your edit feel less like a vlog and more like a mini-Hollywood production. This is where second unit-style thinking gives your content polish without reshoots.
Narratives in Pre-Production
During pre-production, creators plan a b-roll shot list alongside their a-roll to bring structure to the story. These clips fill in narrative gaps, support transitions, and can even salvage a weak main shot in post.
A complete AI video editor
Submagic is more than a B-roll generator. It‘s a cohesive AI video editor that saves creators and teams hours each week. Here are some other features.
Auto Subtitles
Generate your subtitles in minutes. Add animated emojis, colors, and GIFs
Auto B-Roll
Add royalty-free B-Roll to your video or import your own clips in one click.
Auto Transitions
Create smooth transitions between B-rolls, animate emojis with sound.
Auto Zoom
Generate 5-star transitions between clips to create dynamic videos.
Auto Cut
Remove all silence from your video with a wave of a magic wand.
Image & GIFs
Energize your video by adding images and GIFs with just one click
Sounds Effects
Add sound effects to create an atmosphere & highlight key moments.
Music Background
Add a music background to your video in seconds as the cherry on top.
Description
Generate a description & hashtags for optimizing your videos on social media.
Magic Clips
Create short, engaging video clips from your longer content with just a few clicks.
Clip Maker
Extract and enhance the best moments from your videos for maximum impact.
Frequently asked questions
What is the meaning of B-roll?
What are some B-roll shots?
What does the name B-roll mean?
What are A Rolls and B rolls in editing?
How To Shoot B-roll?
Are there web resources for royalty free B-roll video?
How can I effectively use B-roll in my video projects?
Why is B-roll important in video production?
Where can I find free B-roll footage for my project?