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If you want a mature, free Lightroom Classic replacement today, start with darktable (library + raw development, Windows/macOS/Linux). If you want something newer with a Lightroom-like layout, try RAWmakase (it can import Lightroom catalogs) or LightCraft (library + raw developer, also runs in the browser). For maximum raw-processing control, use RawTherapee or its simpler fork ART; for organising a large library, pair any of them with digiKam.
4 community-reviewed free alternatives to Adobe Lightroom.
Adobe Lightroom does two jobs: it organises your photo library and it develops raw files without touching the originals. You can get both for free. The projects below are open source, run without a subscription and keep your photos on your own machine. Two of them were submitted to offstack by their makers and reviewed by people: LightCraft and RAWmakase, both young, fast-moving apps written in Rust. We also list four established projects as editorial picks, because a page about Lightroom alternatives would be incomplete without them: darktable, RawTherapee, ART and digiKam. Each entry shows the license, the platforms and what it is best at, so you can pick by workflow rather than by hype. New tools change quickly, so we note maturity honestly and date every check. Whether you shoot weddings, landscapes or family photos, there is a free option here. Built your own Lightroom alternative? Submit it below.
| Project | License | Model | Platforms | No account | Self-hosted |
|---|---|---|---|---|---|
| LightCraft | MIT | Open source | Windows, macOS, Linux | Yes | No |
| RAWmakase | MIT | Open source | Windows, macOS, Linux | Yes | No |
| Redlamp | MPL-2.0 | Open source | macOS | Yes | No |
| Rembrandt | GPL-3.0 | Open source | Windows, macOS, Linux | Yes | No |
Your photos. Your pixels. Your machine.
A fast photo library and non-destructive raw developer, written from scratch in pure Rust. No account, no cloud, no telemetry, no subscription. Alpha. Signed builds for macOS, Windows and Linux; optional AI masks download a separate model only if you choose to.
A fast, Lightroom-compatible RAW photo editor for macOS, Linux and Windows. Free, open source, no subscription.
RAWmakase is a non-destructive RAW developer written in Rust with Lightroom-style Library and Develop controls and GPU acceleration. It can import a Lightroom Classic catalog with ratings, flags, keywords and compatible develop settings, without touching the original catalog or your photos. Early software (v0.4.x): rendering may change between versions before 1.0, and some export formats (WebP, AVIF, JPEG XL) are not available yet. Optional weekly anonymous usage stats are off until you agree; macOS releases are signed and notarized, while the Windows installer is not code-signed yet.
A native RAW photo editor for Apple Silicon Macs that keeps Lightroom's Develop workflow.
Redlamp is a native RAW photo editor for Apple Silicon Macs (macOS 26+), built in Swift and Metal around a Lightroom-style Develop workflow with the same panel layout, slider names and shortcuts. It offers masking with on-device AI masks, healing and removal, focus stacking, lens corrections, film simulations and presets, and it saves edits in sidecar files next to your photos. It is free, with no account and no cloud; AI runs on your Mac, and models download on first use. Caveats: it is alpha software (v0.3.3), Mac-only for now (iPad and iPhone are planned), and most commits are co-authored by an AI coding agent. It can use Adobe camera profiles you already have from Lightroom Classic or Camera Raw, but ships none. The app checks for updates (Sparkle) and fetches What's New notes from redlamp.app. Bug reports you send are posted publicly as GitHub issues.
A free, local RAW photo editor with on-device AI masks, denoise and super resolution. No account, no subscription.
Rembrandt is a non-destructive photo editor and library for RAW files from over 1,000 cameras, developed on the GPU. It offers masks (brush, gradients, AI subject, background, depth and people), generative remove, AI denoise, super resolution, HDR, panorama and focus-stack merges, lens corrections, film looks and .cube LUTs, plus a Lightroom-style library with ratings, flags, keywords and on-device smart search. You can also describe edits in words, like "golden hour, shadows +25". All AI runs on your computer and edits are saved as XMP next to your photos. The desktop editor is free forever; it can also run as a small self-hosted server you open in a browser. Builds are not code-signed yet, and a paid mobile app and cloud sync are planned separately.
GPL-3.0-or-later · Windows, macOS (Apple Silicon only, 13.5+), Linux
GPL-3.0 · Windows, macOS, Linux
GPL-3.0
GPL-2.0-or-later · Linux, Windows, macOS (Intel + Apple Silicon)
For a complete, mature Lightroom Classic-style workflow, darktable is the most established free option: it combines a photo library with non-destructive raw development on Windows, macOS and Linux. If you prefer a newer app with a more Lightroom-like feel, try RAWmakase or LightCraft, keeping in mind both are still early.
RAWmakase can import a Lightroom .lrcat catalog non-destructively, relink folders and use your Lightroom XMP presets. darktable, RawTherapee, ART, LightCraft and digiKam can read XMP sidecar metadata, but they do not reproduce Lightroom's edits exactly, so expect to re-edit important photos.
darktable is the most complete choice on Linux and is available as an AppImage, Flatpak and distribution packages. RawTherapee and ART are strong raw developers, digiKam is the best library manager, and LightCraft and RAWmakase are newer Rust-based options with Linux builds.
Yes. RAWmakase supports both Apple Silicon and Intel Macs, LightCraft runs natively on macOS and in the browser, RawTherapee and digiKam have macOS builds, and darktable supports Apple Silicon Macs on macOS 13.5 or newer.
LightCraft has a browser build that runs locally via WebAssembly, so your photos are processed on your own device. The other tools on this page are desktop apps.
Yes. Every app on this page is free to use, with no subscription and no trial period, and all are open source: LightCraft is MIT or Apache-2.0, RAWmakase is MIT, darktable, RawTherapee and ART are GPL-3.0, and digiKam is GPL-2.0-or-later.
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