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Mat Cleaner

by Jishnu Jithu·Workflow

Images © Jishnu Jithu. Used for product review; image policy.

Why we like it

Mat Cleaner earns its place in the superhive library for keeping material handling contained to one Sidebar panel across a wide span of Blender versions, from 3.0 through 4.4. The 1.4 update added undo support for its delete operators, which matters when clearing materials in bulk.

What is Mat Cleaner?

Mat Cleaner is a Blender add-on by Jishnu Jithu for handling materials on your objects. It runs from the 3D View Sidebar and covers deleting, replacing, and fine-tuning materials, with one-click removal of unwanted materials to keep a project tidy.

Beyond straightforward deletion, the add-on can remove unused materials and generate a list of the materials currently in use. It also provides self-reports that name the materials being deleted, so you can see exactly what each action removed.

Version 1.4 added undo support for all delete operators and fixed an issue where material slots were not being cleared after deletion. Version 1.3 introduced an option to change the panel's category in the Sidebar. Mat Cleaner supports Blender 3.0 through 4.4 and is released under the GPL license.

Who is Mat Cleaner best for?

Mat Cleaner is best for blender artists who want to delete, replace, and clean up object materials from a single Sidebar panel.

How much does Mat Cleaner cost?

Mat Cleaner is completely free to download and use.

Key features

  • Delete, replace, and fine-tune materials on objects from the 3D View Sidebar
  • One-click deletion of unwanted materials
  • Remove unused materials, with the button located in the options popover as of version 1.4
  • Undo support for all delete operators
  • Self-reports showing the names of deleted materials
  • Option to list the materials currently in use
  • Option to change the Mat Cleaner panel category

Tags

#material management#materials#cleanup#unused materials#Blender add-on#workflow#delete materials

Frequently asked questions

Does Mat Cleaner work with Blender 4.4?

Mat Cleaner supports Blender 4.4 along with 4.3, 4.2, 4.1, 4.0, and the 3.x series down to 3.0, so it covers a wide range of releases. The add-on was designed for Blender 3.0 and beyond, and its interface lives in the 3D View Sidebar. If you run one of these versions, you can add and use the panel directly. For the current version listing and any newer release, check the developer's page.

Can I undo material deletions in Mat Cleaner?

Mat Cleaner added undo support for all of its delete operators in version 1.4, so changes made by the delete tools can be reverted. That release also fixed an issue where material slots were not being removed properly when deleting materials, which had left blank slots in the UI. Earlier versions introduced self-reports that show the names of deleted materials and an option to list the materials currently in use. Together these give you a way to track and reverse material cleanup work.

Is Mat Cleaner free to download?

Mat Cleaner is listed as free in this catalog. Licensing and pricing can change over time, so for the current terms it is best to check the developer's page directly. The add-on is released under the GPL license. Once installed, you can use its material tools from the 3D View Sidebar, including deleting, replacing, and removing unused materials. For the latest details on availability, refer to the developer's listing.

Where do I find Mat Cleaner's tools in Blender?

Mat Cleaner places its controls in the 3D View Sidebar, giving you a single panel to delete, replace, and fine-tune materials on your objects. Unwanted materials can be removed in one click, and the 'Remove Unused Materials' button sits in the options popover as of version 1.4. Version 1.3 added an option to change the panel's category, so you can move it to a different Sidebar tab. This keeps material operations grouped in one place while you work.

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