by Iurii Kotlov·Modeling
Illustrative cover generated by AnyPlugins — no product screenshot available.
OKUnwrap earns its place by aiming for better automatic unwrapping than Blender's built-in tools while staying multi-threaded and fast on heavy meshes.
OKUnwrap is a fully automatic, curvature-based UV unwrapping add-on for Blender, built for cases where manual unwrapping is too time consuming or impractical. It works on any geometry, including meshes triangulated from automatic poly-reduction, and is easily scalable for batch asset processing. The developer states its unwrapping quality is better than built-in Blender solutions, and often better than proprietary ones.
The add-on is fully multi-threaded and aims for production-ready speed: a 335k-triangle test mesh unwraps in 3.7 seconds on a 12-core 4.7 GHz CPU. It also keeps small, space-wasting islands to a minimum, which matters when packing and baking. OKUnwrap runs on Windows, Linux and macOS (Apple Silicon), on any Blender version since 2.8, with tested builds spanning 2.80.75 through 4.5.1.
Update 1.1 adds manual Create Loops and Remove Loops tools for hand-tweaking the algorithm's result from selected edges, an optional real-time preview, and a toggle that marks sharp edges as seams automatically before running. Internal logic was optimised for up to 10-20% faster runs.
Okunwrap is best for blender artists automating UV unwrapping on large or batch asset workloads, including dense and triangulated meshes.
Okunwrap is completely free to download and use.
OKUnwrap works on any Blender version since 2.8, and the developer lists tested builds including 4.5.1, 4.5.0 LTS, 4.4.0, 4.3.2, 4.2.1, 3.6.0 and 2.80.75. That range covers current releases alongside older long-term builds, so most Blender setups should load the add-on without needing an upgrade. If you run into problems on a specific version, the developer invites you to reach out for help.
OKUnwrap supports Windows, Linux and macOS, with the macOS build limited to Apple Silicon. The add-on is fully multi-threaded, and the developer cites a 335k-triangle test mesh unwrapping in 3.7 seconds on a 12-core 4.7 GHz CPU, so performance scales with available cores. If you work across mixed operating systems, the same add-on covers all three desktop platforms rather than being tied to a single one.
OKUnwrap installs from a downloaded .zip file. In Blender, open Edit > Preferences > Add-ons, press the button in the top-right corner, and choose Install from Disk; on older Blender versions you press Install from Disk directly. Select the .zip file, then enable the OKUnwrap entry in the list if it isn't already checked. Finally, press N in the viewport to locate the OKUnwrap tab and start using it.
OKUnwrap is listed as free in this catalog. The developer notes that companies with annual revenue above a stated threshold should get in touch, and that educational licenses are available on request. The add-on is also offered for licensing, made with integration and bridging in mind. For the current terms that apply to your situation, check the developer's page rather than assuming, since licensing arrangements can change over time.
OKUnwrap 1.1 is a free update for existing users. It adds Create Loops and Remove Loops, letting you hand-tweak the algorithm's result by selecting edges where a seam loop should follow your main settings, with Remove working in reverse and stopping at each split. A checkbox called Unwrap After Manual Loops previews changes in real time, though it can be slow on very dense models. A toggle marks sharp edges as seams automatically, and internal logic was optimised for up to 10-20% faster runs.
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