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Blockout

by niewinny·Modeling

Images © niewinny. Used for product review; image policy.

Why we like it

Blockout has drawn 7,776 downloads on Blender Extensions and holds a 5.0 rating across four reviews. Its keypress-driven workflow and ongoing updates, the latest being 1.5.1, make it a compact option for prototyping-focused modeling.

What is Blockout?

Blockout is a 3D modeling add-on for Blender designed for rapid prototyping and base shape creation. It provides tools for creating and manipulating 3D geometry through boolean operations, shape primitives, and advanced modeling techniques.

The workflow centers on the active tool: select it, press D to pick options, and start modeling with the left mouse button. An ngon mode is available, reached by pressing TAB to convert, and version 1.5.1 added undo support for ngon points along with a modal custom plane operator. Full documentation is hosted at blockout.ezelar.com.

Blockout runs on Blender 4.5 LTS and newer and is released under the GNU General Public License v3.0 or later. The add-on requests file permission for importing a node group from disk. It was last updated on September 25th, 2025.

Who is Blockout best for?

Blockout is best for blender artists doing rapid prototyping and base shape creation with boolean operations and primitives.

How much does Blockout cost?

Blockout is completely free to download and use.

Key features

  • Boolean operations for creating and manipulating 3D geometry
  • Shape primitives for base shape creation
  • Advanced modeling techniques
  • Active-tool workflow: press D to pick options, model with the left mouse button
  • Ngon mode entered with TAB, with undo support for ngon points and green midpoints
  • Modal custom plane operator, added in version 1.5.1

Tags

#Blender#3D modeling#prototyping#boolean#primitives#ngon#add-on

Frequently asked questions

Does Blockout work with Blender 4.5 LTS?

Blockout is compatible with Blender 4.5 LTS and newer, so it targets recent releases rather than older builds. The current version is 1.5.1, last updated on September 25th, 2025, and the download comes in at 175.5 KB. If you run an earlier Blender version, check the developer's version history at blockout.ezelar.com for a build that matches your setup, since compatibility here starts at the 4.5 LTS line.

What permissions does Blockout request on install?

Blockout requests one permission when you add it: file access for importing a node group from disk. That covers the add-on reading node group data it needs during use. Blender surfaces this permission when you enable the extension, so you can review it before turning it on. No other permissions are listed for the add-on, and full documentation on how it operates is available at blockout.ezelar.com.

What changed in Blockout 1.5.1?

Blockout 1.5.1 added undo support for ngon points and a modal custom plane operator, plus a TAB shortcut to convert to ngon mode. Midpoints in ngon now display in green. On the fixes side, this release corrected corner drawing and updated the preferences webpage link. It was published on September 25th, 2025. For the complete version history and older releases, the developer's page at blockout.ezelar.com lists earlier builds.

Is Blockout free to use?

Blockout is listed as free in this catalog and is released under the GNU General Public License v3.0 or later. That license governs how you can use, modify, and redistribute the add-on. For current licensing terms and any details specific to your situation, check the developer's page at blockout.ezelar.com. You can add it to Blender by dragging the downloaded file into the app or installing it from disk through the extensions preferences.

How do you start modeling with Blockout?

Blockout keeps its workflow simple: select the active tool, press D to pick options, then start modeling with the left mouse button. Pressing TAB converts to ngon mode when you need it. The add-on centers on boolean operations, shape primitives, and modeling techniques for building base shapes. Full documentation covering the tools is hosted at blockout.ezelar.com if you want a deeper reference while you work.

Alternatives to Blockout

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