How to find b-roll for YouTube videos

What b-roll actually is

B-roll is the footage you cut over a voiceover, interview, or talking head so viewers have something to look at while the story moves. On YouTube it is usually stock video, stock photos used as stills or Ken Burns moves, screen recordings, or clips you shot yourself. A-roll is the primary performance. B-roll is everything that supports it.

Editors lose time when they search stock sites the way they browse social feeds: type a noun, scroll, download, repeat. Pexels can return millions of clips. Your script speaks in story, metaphor, and mood. The gap between those two languages is the real bottleneck.

Start from the script, not from generic keywords

If the narration says “the market froze overnight,” searching “market” will return office handshakes. Searching “ice” will return winter travel. Neither matches the beat. You have to translate the line into something a stock library can actually index: empty trading floor, paused city street, closed shopfront, still water.

Do this on paper or in a notes app before you open Pexels:

1. Split the script into beats. A beat is one visual idea, not one sentence.
2. Write the emotion next to each beat: tension, relief, scale, intimacy, dread.
3. List two or three concrete search phrases per beat. Prefer nouns you can film.
4. Note orientation. Long-form YouTube is usually 16:9. Shorts, TikTok, and Reels need vertical-friendly shots.

That list is the difference between a two-hour browse and a twenty-minute pull. It is also what StockFinder AI generates automatically when you paste the full script.

A free stock footage workflow that actually ships

Pexels is free. The cost is your evening. This is the manual loop most documentary and faceless channels still run, and the loop StockFinder AI is built to replace.

1. Search one beat at a time

Stay inside a single beat until you have two or three usable candidates. Mixing beats in one search tab is how folders fill with clips you cannot place later.

2. Preview for motion and crop, not just subject

A perfect subject that is already framed too tight will not survive a 9:16 crop. A clip with a harsh zoom or a watermarked lower-third is unusable no matter how on-topic the thumbnail looks. Watch the first two seconds. Check the edges.

3. Download into a project folder, not Downloads

Create one folder per video. Inside it, keep photos, videos, and a text file of source URLs. Random names like pexels-download(3).mp4 are why editors re-search the same scene the next morning.

4. Keep the Pexels page with the file

You will need the photographer or videographer name, the media page URL, and a Pexels link when you write the YouTube description. If you skip this now, you will reconstruct it from memory at 1 AM.

Pexels attribution for YouTube descriptions

Pexels media is free to use under the Pexels License, including most commercial YouTube use. “Free” is not the same as “no credit.” Pexels asks you to credit the creator and Pexels when reasonably possible. YouTube descriptions are the normal place to do that.

A credits block that holds up looks like this:

StockFinder AI stores photographer name, Pexels URL, and license notes in the Media Library and in the exported manifest so you can paste a complete credits block instead of hunting through browser history.

AI tools for YouTube b-roll without cloud lock-in

Most “AI video” products generate footage in a browser, charge a monthly fee, and upload your script to their servers. That can be fine if you want generated video. It is the wrong tool if you want licensed stock from a library you already trust, on a machine you control.

StockFinder AI is a desktop agent, not a generator. You bring a free Pexels API key and an API key from OpenAI, Google Gemini, or OpenRouter. The app is MIT licensed. There are no StockFinder cloud servers. Your script is sent only to the LLM provider you configure. Details are in the privacy page.

Use it when you already have a script and you need a folder of relevant Pexels photos and videos. Do not use it as a replacement for Premiere, DaVinci Resolve, Final Cut, or CapCut. It stops at the organized pack.

Pre-edit checklist

• Every narration beat has at least one covering clip or still.
• Orientation matches the platform: 16:9 for long-form, vertical-friendly for Shorts.
• Files live in a named project folder, not a mixed Downloads dump.
• Photographer credits and Pexels URLs are copied into the description draft.
• You still have energy left for pacing, music, and the actual cut.

If that list is the part of publishing you dread, download StockFinder AI and run it on tonight’s script.