ART

Overview

ART is a free desktop RAW processor for photographers who want control over local adjustments, formats and batch work without paying for a license. Its appeal is the combination of broad editing tools and GPLv3 openness; its clearest compromise is that AI workflows rely on separate software.

Key features

ART handles RAW images and supports layers, masking and batch editing. Its local editing offers both drawn and parametric masks, giving photographers ways to target adjustments rather than apply them uniformly. That makes it a stronger fit for deliberate image processing than for someone seeking only a minimal viewer or quick one-click editor.

Metadata handling includes optional XMP sidecar reading and writing. A plugin system allows custom input and output formats, including true HDR output. For color work, ART supports ACES CLF LUTs through OpenColorIO and CTL scripts through the ACES CTL interpreter. Those options matter to photographers with specialized format or color workflows; they may add little for casual edits.

Automatic perspective correction, adapted from darktable, addresses framing and converging-line corrections. User commands can connect external programs, and the documentation describes AI masking and denoising workflows built around separate open-source tools. That flexibility is useful for users willing to assemble a workflow, but ART is not the right choice for anyone who expects integrated AI tools: full integration is unlikely in the foreseeable future.

Pricing

ART costs nothing. The free plan includes the open-source RAW processing program under GPLv3, with no trial period needed. It is suited to individuals who want a capable processor without a subscription or license charge; there are no cheaper paid tiers to compare. The trade-off is support assurance: ART comes with no warranty.

Platforms

ART runs on Linux, macOS and Windows. The official downloads page links stable binaries from GitHub releases and points to third-party builds for Windows, openSUSE, Arch Linux and notarized macOS, giving users several platform routes while requiring them to choose an appropriate build.

Who it's for

ART suits photographers who want local masking, layer editing and batch processing in a free, cross-platform RAW workflow, especially those interested in flexible formats or advanced color tools. It is less suited to users who need an all-in-one AI editor or software backed by a warranty. Questions and bug reports can go through the GitHub issue tracker and discussion board.

Pros and cons

• Pros: Free and GPLv3, with Linux, macOS and Windows support, making it accessible across common desktop systems without a license cost.
• Pros: Drawn and parametric local masks, layers and batch editing support targeted work as well as processing multiple images.
• Pros: Plugin-based format options, true HDR output, XMP sidecars and ACES color tooling accommodate workflows beyond basic RAW conversion.
• Cons: AI masking and denoising depend on separate open-source tools and user commands rather than integrated features.
• Cons: No warranty means users must be comfortable relying on community discussion and bug-report channels.

Alternatives

darktable is another free, GPL-licensed RAW workflow application for Linux, macOS and Windows; consider it if you want a comparable open-source option. RawTherapee is also free, GPLv3 and cross-platform, and is worth considering if you prefer ART's source project; it does not include digital asset management, printing or uploading features.

vkdt is a free, open-source photography workflow toolbox for Linux, macOS and Windows. dcraw is free for all uses and runs on Linux and Windows. FUJIFILM X RAW STUDIO is a free download for macOS and Windows that requires a compatible FUJIFILM camera connected by USB. Hasselblad Phocus is free RAW processing software for PC and Mac. Nikon NX Studio is downloadable desktop software for macOS and Windows, with camera and file-format support varying. OM Workspace is a free download for macOS and Windows that requires a camera serial number. Browse RAW Photo Processing Software or Photo Editing Software for more options.

Verdict

Choose ART if you want a free, GPLv3 RAW processor with local masking, layers, batch editing and broad format options across desktop platforms. Its combination of targeted editing and format flexibility is compelling without a license cost. Look elsewhere if you need integrated AI tools or a warranty-backed product.