5 Best AI B-roll Generators: Automatically Adds Relevant Video Clips to Create Engaging Videos

You’ve just finished recording a video, and now comes the part many creators dread — hunting for the perfect B-roll. Let’s be honest: manually searching, downloading, and syncing clips is tedious, boring, and time-consuming, even though it’s essential for keeping viewers engaged.

Manual Edits to Add B-roll to Video

Luckily, AI B-roll generators are here to save the day! If you’re tired of doing everything by hand and want a smarter, automated workflow, check out our list of the 5 best AI B-roll generators and learn how to transform your plain footage with AI-powered B-roll in just a few clicks.

Can't Miss: B-Roll, A-Roll Film Tricks - Know Exactly When and Where to Use Each>>

What is B-roll and How Is AI Solving This B-roll Problem?

B-roll is supplemental video footage or relevant imagery used to enrich and support your main video (known as the A-roll). It adds visual interest, provides contextual information, and creates smoother transitions by showing scenes, cutaways, or close-ups that illustrate what you’re talking about.

Example of A-roll and B-roll of Video

Traditionally, adding B-roll meant manually searching, downloading, and syncing clips — a process that could take hours and often cost a small fortune in stock footage fees. But AI B-roll generators have completely changed the game. These tools streamline the entire workflow and typically work in two powerful ways that are transforming content creation:

AI-curated B-roll to Make Your Video More Engaging

AI-generated B-roll to Make Your Video More Engaging

Now that you have a clear understanding of how AI can automatically add B-roll to your videos, let’s dive into the top 5 AI B-roll generators we’ve selected for you.

5 Best B-roll Adding Solutions with AI

#1 Opus Clip AI B-roll Generator

Opus Clip is a top-tier tool that uses advanced AI to automatically pinpoint moments in your video that could benefit from visual enhancements to boost watch time. It applies natural language processing to your speech and audio to understand keywords, topics, and emotional cues.

With this insight, it suggests or even automatically inserts relevant B-roll footage, whether AI-generated or sourced from stock libraries, to match your narrative. With Opus Clip, you can effortlessly add dynamic visuals and turn plain footage into scroll-stopping clips.

Best AI B-roll Generator - Opus Clip

#2 Kapwing AI B-roll Generator

Kapwing is a powerful yet easy-to-use AI B-roll generator that strikes the perfect balance between simplicity and automation. It runs entirely in your browser, offering a smooth, intuitive editing experience with no downloads required.

The platform automatically generates a script from your video, uses AI to detect key themes, and matches them with relevant stock images or clips — saving you hours of manual editing. With Kapwing, adding eye-catching B-rolls to your videos takes just a few clicks.

Best AI B-roll Generator - Kapwing

#3 Submagic AI B-roll Generator

If you’re a social media creator looking to add B-rolls to your videos at scale, Submagic is a powerful AI option you’ll want to try. Like other AI B-roll generators, it uses machine learning to understand your spoken words and video themes, then automatically selects from thousands of royalty-free clips, GIFs, images, or your own uploads to enhance your footage.

What truly sets Submagic apart is its precise caption-synced B-roll placement, perfectly timing visuals to match your message without any manual tweaking.

Best AI B-roll Generator - Submagic

#4 FlexClip AI B-roll Generator

FlexClip is a versatile AI-powered platform that lets you create entire videos — including B-roll — directly from text or images. Unlike predictive AI B-roll tools, FlexClip generates footage entirely based on your prompts, giving you precise control over the output. It integrates multiple generative AI models, including Sora 2, Google Veo, SeeDance, and MiniMax Hailuo, to deliver cinematic realism.

On top of that, it provides access to royalty-free stock footage from popular sites like Storyblocks, Unsplash, Pexels, and Pixabay. In short, if you want more control and highly accurate AI B-rolls, FlexClip is an excellent choice.

Best AI B-roll Generator - FlexClip

#5 VEED.io AI B-roll Generator

VEED.io has been a web-based video editor for years, and it recently introduced an AI B-roll generation feature. With VEED.io, you can automatically create B-roll images for both short and long-form content to boost your storytelling.

What truly sets it apart is its accurate subtitle generation and multilingual voiceover support, making it easy to add supplemental content without worrying about language barriers.

Best AI B-roll Generator - VEED.io

FAQs About AI B-roll Generator

1.What is AI B-roll generator?

An AI B-roll generator is a tool that automatically generates or adds relevant video clips(B-rolls) to a main video by analyzing its script or audio transcription. These tools save time by eliminating the need for manual searching and editing of B-roll clips.

2.Can I use AI-generated B-roll commercially?

Yes, you can use AI-generated B-rolls commercially, but it’s important to review the specific tool’s terms of service because usage rights can vary. Some platforms offer royalty-free commercial rights, while others may have restrictions — especially when the footage is fully AI-generated rather than stock-based. Always check the licensing details in advance to make sure your commercial use is fully compliant.

3.Do I need editing skills to use it?

Not at all. Most AI B-roll generators are beginner-friendly, letting you simply upload your video or type a prompt, and the tool will automatically suggest matching B-roll clips. With this kind of workflow, prior editing experience isn’t required at all.

Bella /

Full of vitality, curiosity and hope, Bella is an energetic copywriter at FlexClip. She mainly concentrates on video creation and troublesome issues related to video editing, providing users with practical solutions and tricks. Personally, Bella loves novels, sci-fi movies, cooking and travel. And, she believes that all her life is the best arrangement from God.