TL;DR Imagin Raw is a free, open-source Mac app (4.3 MB) for culling and rating RAW photos — no import, no library, folders stay where they are. Writes ratings/labels to standard XMP sidecars so Lightroom and Bridge both read them. Compares itself directly to Adobe Bridge (9 MB vs. 2 GB, 0% idle CPU vs. nonzero). It's a few weeks old, Mac-only by design, and has a known issue with Fuji RAF previews. Not a Photo Mechanic replacement for pros yet, but a solid free option if you just need to look, rate, and reject.

Imagin Raw is a new, free, native SwiftUI browser (macOS 14.6+) from developer Cristian Baluta, who also builds Spoto and cmd c. It decodes RAW files with LibRaw, watches your folders with FSEvents so changes show up in real time, and writes ratings and color labels to XMP sidecars, the same format Lightroom and Bridge use. (GitHub or Mac App Store)

If I could do just one thing to my worst enemy today, I'd break into his house and install Adobe software on his Mac. Aside from being a horrible company, in the sense that it's hard to disconnect your bank account from it (a sin for which it had to pay massive fines), Adobe products are massively invasive. If you have a VM or a Mac you don't care about, install an Adobe app. Open it a couple of times. Then immediately uninstall it. Then do a Spotlight search for "Adobe." You'll likely find thousands of files scattered all over your drive that stayed behind to do who knows what.

Adobe Bridge is a 2 GB download that exists to do one job: let you look at your RAW files, rate them, and throw out the bad ones before you open a real editor. It runs a nonzero idle CPU load to do that job, and it takes long enough to launch that you have time to question your life choices. It's nothing more than a free-with-Creative-Cloud culling tool that behaves like it's rendering 8K video.

The reality: culling RAW files is a small problem. You need fast previews, a rating system that other apps understand, and a way to reject junk without touching your master files. That's it. Imagin Raw is a new, free, open-source Mac app that does exactly that, in a 4.3 MB package, and treats your folders as the source of truth instead of asking you to import anything into a library. It's easy to drop into an existing workflow.

Useful Features if You Shoot RAW

  • Point it at any folder, external drive, or SD card and it browses what's there. If the app disappears tomorrow, your ratings and labels are already sitting in XMP sidecars next to your files; you lose nothing by switching to another app down the road.
  • Rejected images only persist for a single session. If you don't remove the images from whatever media they live on, you can have a second pass if you need it. Deletion is easy though; just hit the reject button and right-click to batch delete.
  • I shoot Canon and it writes both RAW and JPEG to my SD cards. Imagin Raw de-dupes what I see, showing me only the RAW images.
  • Copy a card into dated folders on your Mac while writing a second copy to a backup destination in the same step. It's a built-in workflow enhancement, not a demo feature.
  • If you're shooting for someone else's approval, export a pick-list as a PDF. They check boxes beside what they want and you import it back into Imagin Raw, where it gets automatically filtered. There's no need for a web portal, a cloud gallery account, or anything requiring another damn subscription.

Alternatives

Imagin Raw's category is RAW culling and browsing, not RAW editing. That distinction matters because a chunk of the "alternatives" people will suggest are actually editors with a browsing mode bolted on, not dedicated culling tools.

  • Adobe Bridge is the incumbent and it's free, but only in the sense that it doesn't cost extra on top of whatever Adobe subscription or account you already have. It's the direct target of Imagin Raw's README comparison table: ~2 GB versus ~9 MB, nonzero idle CPU versus 0%, and multi-second launches versus near-instant. Where Bridge still wins: it renders Camera Raw–processed previews with your adjustments baked in, which Imagin Raw doesn't attempt.
  • Photo Mechanic is the professional standard for high-volume culling, especially among photojournalists and wedding shooters, and it costs real money: $14.99/mo, $149/yr, or a $299 one-time perpetual license.
  • FastRawViewer is the closest thing to a direct, cheaper competitor: a paid RAW viewer built by the LibRaw team (same decoding library Imagin Raw uses), priced at $23.99 for a two-computer license.
  • Capture One is worth naming only to rule out: it's a full editor with culling built in. If you're already a Capture One user, you don't need Imagin Raw. If you're not, don't start there just for culling.

Why You Would Use This

You have folders full of RAW files on external drives or SD cards, you don't want a managed library, and you're tired of Bridge's launch times and memory footprint for a task that's fundamentally "look at photos, rate the good ones, delete the bad ones." Imagin Raw does that job in a fraction of the size and stays out of your way, and because it writes standard XMP sidecars, nothing you do in it is wasted if you outgrow it.

Is It a Pro Tool?

Probably not, at least not yet. It's only a few weeks old. The developer says he's building only what he personally needs, so don't expect a Windows version. There's a known issue with Fuji images. If your income is dependent on what you do with your camera, opt for Photo Mechanic to take advantage of its support and overall product maturity. And if you're OK with Adobe, who am I to judge; despite all the drawbacks, it works for many.

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