Adobe charges $11.99 a month for Lightroom, and the plan most photographers end up on costs $19.99. A new open-source editor called Rembrandt just became the most interesting free Lightroom alternative I’ve seen, with AI that runs on your own machine. Here’s what it handles well and where it’s still rough.
Why photographers are done paying Adobe every month
The Photography plan runs $19.99 a month right now, which works out to roughly $240 a year for software most hobbyists use at maybe 20% of its features. Adobe’s own pricing page lays out the tiers, and there’s no cheap option that bundles everything people actually need. Add the cancellation fee horror stories, and you get a subscription fatigue that writes its own punchline.
That frustration is exactly the opening Rembrandt is aiming at. Its README says it plainly: “Stop paying for Adobe.”
The project surfaced on Hacker News this week and pulled 47 points on the front page, which for a repo with zero marketing means people were already waiting for something like this.
What Rembrandt actually is
Rembrandt is a free, open-source photo editor for macOS, Windows, and Linux from a developer who goes by thesnarkitecht. It ships under the GPL-3.0 license, the same one Darktable uses. No account, no subscription, no tracking.
Three things separate it from the free editors you’ve already tried. First, the AI runs entirely on your device (it’s a vocabulary, not a language model), so nothing leaves your computer. Second, it imports your whole history from Lightroom Classic, including edits, keywords, labels, virtual copies, and collections. Third, it’s the rare free Lightroom alternative you can self-host and reach from any browser on your network.
That import detail matters more than people realize. Most free Lightroom alternative projects die at migration, because nobody wants to re-keyword ten years of photos. Rembrandt even generates a report of anything it couldn’t bring over.
What it does for free
Ask your edits in plain English
The headline feature is the Ask bar. Type “warmer and a bit brighter” or “shadows +25” or “paste the edits from the previous photo” (that’s Ctrl or Cmd K), and the sliders move themselves while you watch. Because it runs locally, it works offline and answers instantly.
It’s a vocabulary, not a chatbot. That’s a smart trade: no model download the size of a planet, no cloud bill behind the curtain, and no “service busy” errors at midnight.
AI masks and Super Resolution
Masks cover brush, gradients, plus AI subject and AI depth detection, which is where Lightroom users spend most of their local-editing time. There’s also a Super Resolution tool that upscales 2x or 4x on your own GPU. For a free app, that’s the whole wishlist, basically.
A library that behaves like Lightroom
Albums, ratings, color labels, keywords, virtual copies, search, a Find similar view, and keyboard shortcuts copied from Lightroom, so your muscle memory survives the move. Lens corrections pull from 1,500 Lensfun profiles plus built-in ones for Fujifilm and Sony RAW files.
One more thing worth knowing: edits are saved as standard XMP files next to each photo. Lightroom can read them, other apps can read them, and your originals are never touched. The exit door stays open, always.
Sharing is covered too. You can export a before/after page with a slider, a replay video of your edit, or embed the recipe inside the exported file so someone else can replay exactly how you got there. Small feature, big appeal for anyone who posts editing breakdowns.
How to install Rembrandt
Grab the installer from the official releases page on GitHub, then follow your platform’s step below. Total setup time is about two minutes.
Windows
Download the setup file (x64 or ARM), run it, and when Windows warns about an unknown publisher click More info, then Run anyway. The app isn’t code-signed yet, so the warning is expected, not malware.
macOS
Pick the DMG for your chip (Apple silicon or Intel) and drag the app to Applications. If macOS blocks the first launch, open System Settings, then Privacy & Security, then click Open Anyway.
Linux and self-hosting
There’s a one-line install script for x86_64 and arm64 machines. Even better, run the self-host server on the computer that stores your photos and edit from any browser; add the –lan flag to reach it from your phone or tablet on the same Wi-Fi. Updates are one click and verified against published checksums.
Three edits to try first
Once it’s installed, give it a real test instead of poking at the sample photos. Open a RAW file you already know well, one where you remember exactly what you changed in Lightroom.
First, hit Ctrl or Cmd K and type “shadows +25” the way you’d ask a friend. Watching the slider jump on command is the moment this app clicks for most people. Second, run the AI subject mask and drop the exposure behind your subject; compare the edge quality against what you’d get elsewhere. Third, run Super Resolution on one photo and print a crop at 4x, because that’s where upscales usually fall apart.
If all three pass your eyeball test, migration stops being a gamble and starts being a schedule.
Rembrandt vs Lightroom at a glance
Can a free Lightroom alternative really stand next to the original? Here’s the honest side-by-side:
| Rembrandt | Lightroom | |
|---|---|---|
| Price | $0 (optional paid cloud sync) | $11.99/mo, or $19.99/mo Photography plan |
| Platforms | macOS, Windows, Linux, any browser | macOS, Windows, web, iOS, Android |
| AI editing | On-device Ask, subject and depth masks, Super Resolution | Firefly AI, Denoise, Generative Remove |
| Catalog import | Lightroom Classic, Lightroom, Google Photos, Drive, Dropbox, OneDrive | Adobe ecosystem only |
| Edits stored as | Open XMP next to each photo | Proprietary catalog |
| Mobile | None yet | Full apps |
| Code signing | Not yet | Yes |
The honest limitations
This thing launched this week. The repo had six stars when I checked, there’s no mobile app, and the builds aren’t code-signed, so both operating systems will complain on first run. Development moves fast, and that also means bugs move fast.
Cloud sync exists if you want edits on two computers, and it’s the only paid piece, though pricing details are still thin. Meanwhile Lightroom still wins on mobile, tethering, and overall polish. If client work depends on rock-solid color across devices, treat this as a second editor for now rather than a full replacement.
Should you switch?
Hobbyist paying Adobe monthly and quietly resenting it? Install Rembrandt tonight, import your catalog, and run it against a real batch of RAWs. As a free Lightroom alternative it already covers the core, and the $240 a year you’d stop spending buys a lot of lens rentals.
Working pro on deadline? Keep Lightroom as your daily driver and watch this project. Apps that move this quickly either flame out or get very good very fast, and the early signs point to the second one.
Either way, the bigger story isn’t one app. It’s that a single developer with AI tools can now build an editor in a category where a giant charges $240 a year. We’ve watched the same pattern with free AI image editing in our Grok vs Photoshop comparison, with the free design tools hiding in Google Workspace, and with people running serious models on a gaming PC at home. Photo editing just got its turn.
The move is simple: download Rembrandt from GitHub, import your Lightroom Classic catalog, and give it one full shoot’s worth of RAW files this weekend. If it keeps up, cancel the subscription and keep the money.
