Adobe's creative suite has been one of the safest moats in software for two decades, because the files are the workflow and the workflow is the files. ArtCraft is the most serious attempt yet to test that assumption, and it is being built in the open, in pure Rust, with a great deal of AI assistance.
PhotoCraft, the Photoshop equivalent, is the flagship. Its repository does not read like a weekend prototype: 68 tools, 16 adjustment layers, a brush engine with shape dynamics, scattering, dual brush and pen-pressure response, real ICC colour management written from scratch, CMYK and Lab documents at 8, 16 and 32 bits, 27 Photoshop blend modes, and support for PSD, PSB, layered TIFF, OpenRaster, Krita, GIMP XCF, Affinity documents and OpenEXR. The number that matters most is the round trip: opening and re-saving yields a matching render for 307 of the 309 files in the public psd-tools test corpus.
The engineering is not incidental. The project ships more than 1,700 tests, two compositors -- a CPU reference oracle and a wgpu GPU path -- tested against each other, and 24 crates with layering enforced at build time. It compiles to WebAssembly, so the same engine runs in a browser.
The decision that separates it from every earlier "open-source Photoshop" is architectural. Every menu item, tool and dialog is a command in one registry of more than 500, so the desktop UI, a CLI, an authenticated local JSON control channel and an MCP server all drive the same engine. Anything a person can click, a script or an agent can do, including running a batch of edits over a folder of raw files overnight.
__The honest part__
What makes the project interesting is not the star count -- 74,600 stars, 13,200 forks, 7,131 commits, and the usual accompanying flood of 2,300 open issues and 1,200 pull requests. It is that the maintainers refuse to oversell it. The repository carries the badge "status: early alpha" and says plainly that much of Photoshop's feature surface exists in some form "but it is not yet a Photoshop replacement for daily professional work." The named gaps: generative AI features, 15 missing tools, depth in typography and professional workflows, and plug-in compatibility.
The sharpest sentence in the README is a warning against its own best metric: every Photoshop menu item is wired to a command, "but that measures wiring, not behaviour."
Reviewers have landed in the same place. c't's André Kramer, who tested the clones for the German magazine, put it this way: the menus are all there, the palettes are all there, the tool icons are all there -- whether they are backed by functions is a completely different question. XDA's João Carrasqueira found PhotoCraft surprisingly competent for object selection, text layers, layer effects and clipping masks, and better than expected for bulk photo edits in LightCraft, but noted weaker selection accuracy, no automatic lens-profile corrections, and a crash in the video editor FilmCraft on a small project.
Its most concrete advantage is not a feature at all: it runs on Linux. Neither Photoshop nor Affinity does, and DaVinci Resolve is awkward to install there. For designers who have left Windows and macOS, this is currently the closest thing to a native Adobe-style workflow.
__Why it matters__
The interesting question is no longer whether an AI can produce a working image editor. It evidently can, and the licensing is clean: MIT or Apache-2.0, a clean-room implementation from public specifications, an explicit disclaimer that Adobe's trademarks belong to Adobe.
The interesting question is what remains when the first 80% becomes free. PhotoCraft has the menus, the tools, the PSD format and the shortcuts. What it does not have is the accumulated small stuff -- the lens profiles that make a raw file look right on import, the selection that updates in real time under a brush, the plug-in ecosystem, the muscle memory of a decade of edge cases. That is the residue that moats are actually made of, and it is precisely the part a parity checklist cannot measure.
One more thing is missing, and it is the one Adobe has been building toward: generative editing. The clone reproduces the application Adobe spent thirty years on; it does not reproduce the capability Adobe spent the last three years betting the company on. For now, the free version of the past is not a substitute for the paid version of the present.
