Finder can't show you what's in a video. Five ways to check a folder full of clips on a Mac without opening each one

I came back from a trip and copied the iPhone and GoPro clips onto an external SSD. The folder had IMG_0389.MOV, IMG_1200.MOV, GX010042.MP4, and so on, about 200 files in a row. Each icon shows one frame, and every clip from the beach is the same blue rectangle. So I open them one at a time to see what they are. I did that for years. This post covers five ways to check what's inside a folder of videos on a Mac without opening each file. Four use features already in macOS or free tools. The fifth is an app I wrote, SceneStrip. It's free to start, with a one-time purchase to unlock the rest. I'm the developer, so the last section is partly an ad. The first four are enough for a lot of people, so try them in order. Why Finder can't tell you what's in a video The icon Finder draws is one frame from near the start of the file. The first frame is often the ground, right after you pointed the camera, or the same framing as the previous clip. Clips shot at the same place on the same day all get the same picture. File names don't help either. Cameras number the files IMG_ or GX01 and never write a word about the content. List view can show the capture date, but a date tells you when you shot something, not what. What you actually want is a strip: the whole clip split into a handful of frames, laid out side by side. With a strip you can tell the fish clip from the boat clip even when both start blue. Whether a method gives you that strip is how I'll judge each one. 1. Finder's Gallery view and Quick Look (free) The easiest option is a different Finder view. Open the folder and press ⌘4 for Gallery view, which shows the selected clip large. Press ⇧⌘P for the Preview pane and you get file size, creation date and Finder tags on the right. Press the space bar and Quick Look opens the clip and plays it right there. Arrow key to move to the next one, space to close. Space, arrow, space. Repeat that and you can check a clip in a few seconds. For a few dozen clips this is fine. The weakness is that you're still playing them one at a time. With 200 clips you press the space bar 200 times, and a clip that changes scene halfway through has to be watched to the end. 2. Import into Photos (free) Import the clips into the Photos app and they're sorted by capture date. Move the mouse across a thumbnail and the clip scrubs under the pointer. If most of your footage is from an iPhone, iCloud Photos may already have it on your Mac. It doesn't suit people who want to keep the folder layout on an external SSD. Importing creates a copy inside the Photos library, so the storage doubles, and the original file names don't show in the grid. For GoPro and drone footage organized in folders it didn't work for me. 3. QuickTime Player or VLC (free) Select several clips in Finder and open them. QuickTime Player opens each one in its own window. VLC takes a playlist and plays through it, and at 2x speed the checking takes half as long. It's still watching, though. If you want to take notes while you watch, Quick Look in method 1 takes fewer steps. If you want the strip, go to method 4. 4. Contact sheets with ffmpeg (free, uses Terminal) ffmpeg is a command line tool that can pull 10 frames at equal intervals from a clip and tile them into one image, a contact sheet. That is the strip from the start of this post. If you have Homebrew, installing it is one line. brew install ffmpeg Get the clip's duration, then take one frame every tenth of it. For a 73 second clip that's every 7.3 seconds. ffprobe -v error -show_entries format=duration -of csv=p=0 IMG_9181.MOV # → 72.901667 ffmpeg -i IMG_9181.MOV -vf "fps=10/72.9,scale=320:-1,tile=10x1" -frames:v 1 IMG_9181.jpg On my M2 Mac, a 1080p clip of 73 seconds took about 6 seconds. The output looks like this. You can tell it's the aquarium at a glance. To run it over a whole folder, a for f in *.MOV loop does the job. There are limits. You end up with as many image files as videos. Add clips and you make them again. You can't tag or filter anything from the images. And it's hard to recommend to anyone who avoids Terminal. If you just want to make the strips once and look at them, it's enough. 5. A video organizer app (SceneStrip, free, $0.99 one-time to unlock) SceneStrip is the Mac app I wrote. It makes the strips from method 4 automatically when you add a folder, shows them as a list, and adds tags and sorting on top. My own GoPro and iPhone folders looked exactly like the one in the intro, and I got tired of opening clips one at a time. Add a folder and every video in it gets 10 evenly spaced thumbnails. They're cached, so the second time you open the folder they appear instantly. You can add one folder for free, or up to 10 after unlocking, and a refresh only looks at files that were added, changed or removed. The list is also where you organize. You can mark favorites, read the Finder tags you already have, and add the app's own tags, then filter by any of the three. Sort by capture date, file name or recently played. Renaming and moving to the Trash happen inside the app. Playback is in a built-in player, and you can drop bookmarks at the moments you care about. Notes like "the fish shows up at 0:32" live with each file. For people who work from an external SSD, favorites and tags are saved in a small sidecar file inside the folder. Plug the SSD into another Mac and the favorites and tags come along. Some things it doesn't do: editing, exporting, cloud sync, or importing your videos into a library. It reads folders and makes strips, that's all. avi and mkv open on Apple Silicon Macs only. It needs macOS 14 or later, and everything runs on the Mac. No account, no uploads. It's on the Mac App Store. The download is free, and one folder stays free. When you want a second folder, unlocking the full version for up to 10 is a $0.99 one-time purchase, not a subscription. Mac App Store: https://apps.apple.com/app/apple-store/id6759131614?pt=271041&ct=blog-finder-videos-en&mt=8 Product page: https://scene-strip.pages.dev/en/ Which one to pick A few dozen clips you want to check right now: method 1. ⌘4 and the space bar are all you need. Mostly iPhone footage and you don't mind it living in the Photos library: method 2. Comfortable in Terminal and want images you can keep: method 4. Folders on an external SSD that you'll come back to and organize: method 5. Method 3 is a fallback for when none of the others are available. Closing Stop opening clips one at a time and sorting them goes a lot faster. I got by on method 1 for a while, then ended up writing an app. You don't have to go that far. ⌘4 and the space bar change today's work on their own. If you have questions or requests about SceneStrip, send them through the support page (https://scene-strip.pages.dev/support/). What footage you use it on and what's missing is what shapes the next version.