
LoopTools
by Community
LoopTools is a mesh modelling toolkit for Blender that gathers several tools to aid modelling. It was previously part of Blender 4.1's bundled add-ons and is now offered as an extension, provided as it is with limited support.
by 3Z Axis·Modeling
Images © 3Z Axis. Used for product review; image policy.
Paramix earns its place in the Superhive library for a focused idea: keeping primitive parameters editable long after creation, inside a familiar panel.
Paramix is a Blender add-on from 3Z Axis focused on primitive control. In Blender's default behaviour, the parameters of a mesh primitive vanish once it's created. Paramix keeps those properties alive, giving you permanent access to the core settings of primitives like Torus, Sphere, Cylinder, Cone, and Circle.
The add-on works with primitives you add manually through Shift + A > Mesh, and adds a custom panel inside Properties > Object. From there you can adjust segments, radii, depth, fill types, and more at any time. Because these values stay editable after creation, the workflow stays non-destructive rather than requiring a rebuild when a parameter needs to change.
Paramix is suited to fast prototyping and iterative design, where primitive settings are frequently revisited. It supports Blender versions 3.0 through 4.5 and is released under the GPL license. A targeted tool for modellers who want ongoing access to primitive parameters, it stays small in scope.
Paramix is best for blender modellers doing fast prototyping and iterative design who want ongoing access to primitive parameters.
Paramix is completely free to download and use.
Paramix supports Blender versions 3.0 through 4.5, so it covers Blender 4.5 as well as a broad range of earlier releases. This range means the add-on can be used across several Blender generations rather than being tied to a single version. For the most current compatibility details, check the developer's page before installing, as supported versions can change with later updates to the add-on.
Paramix supports Torus, Sphere, Cylinder, Cone, and Circle primitives. For these shapes it keeps the core properties available after creation, so you can adjust settings such as segments, radii, depth, and fill types at any time from the custom panel in Properties > Object. This differs from Blender's default behaviour, where primitive parameters disappear once the object is created, and supports a non-destructive approach to editing these primitive types.
Paramix adds a custom panel inside the Properties Editor's Object tab. It works with primitives you add manually through Shift + A > Mesh, then keeps their core properties alive in that panel. From there you can change segments, radii, depth, fill types, and more at any point after the primitive has been created, giving a non-destructive workflow instead of Blender's default behaviour where those parameters vanish.
Paramix is listed as free in this catalog and is released under the GPL license. Because pricing and licensing terms can change over time, it's worth confirming the current details on the developer's page from 3Z Axis before downloading. The GPL license governs how the add-on can be used and redistributed, so review those terms directly at the source if licensing specifics matter for your project.

by Community
LoopTools is a mesh modelling toolkit for Blender that gathers several tools to aid modelling. It was previously part of Blender 4.1's bundled add-ons and is now offered as an extension, provided as it is with limited support.

by Community
Extra Mesh Objects is a Blender add-on that expands the Add > Mesh menu with additional mesh object types. Previously bundled with Blender 4.1, it now ships as a standalone extension for Blender 4.2 LTS and newer.

by nickberckley
Bool Tool brings quick boolean operators to Blender for hard-surface modeling, covering brush booleans, destructive auto boolean cuts, and workspace tools that carve objects with custom shapes in both object and edit modes.

by Community
Extra Curve Objects is a community add-on for Blender that adds extra curve object types. It lives under View3D → Add → Curve → Extra Objects and was previously part of Blender 4.1's bundled add-ons.

by MACHIN3
MESHmachine is a mesh modeling addon for Blender focused on hard surface work without subdivision surfaces. It fuses and unfuses surfaces, creates variable fillets and washouts, edits bevels, and details meshes with plugs.

by Community
A.N.T.Landscape is a Blender add mesh add-on for generating landscapes and displacement. Originally a bundled add-on in Blender 4.1, it's now offered as-is with limited support, accessed from the View3D sidebar's Create tab.