A collection of Blender scripts, from one-liners to panels.
File: script_runner.py
This add-on lets you organize and run custom Python scripts directly inside Blender. Scripts are grouped into categories (subfolders), making it easier to manage large script collections.
- Set Script Folder
Opens a folder picker to select the root folder containing your scripts.
This folder must contain at least one subfolder with scripts.
You can name the subfolder however you like, for example
main.
Example of a root folder with subfolders as categories:
scripts/
main/
useful_script.py
modeling/
bevel_tools.py
cleanup.py
rendering/
setup_cycles.py
render_preset.py
other/
...
By default, Script Runner looks for a scripts folder in the same
directory as the current Blender file.
Tip! If you do not want to edit the Script Runner code to define a custom folder, simply select your scripts folder once and then save the Blender startup file. After that, Blender will always start with Script Runner pointing to your chosen folder.
- Refresh Use this button when you add a new subfolder or script. It rescans the root folder and updates the available categories and scripts.
- Script Category Dropdown for selecting the subfolder containing your scripts.
- Script Select Dropdown for selecting the script you want to run.
- Run Executes the currently selected script.
Similar Blender extensions:
File: collection_name_from_selection.py
This script renames the first (primary) collection of each selected object to match the object’s own name. It is handy when you want the collection hierarchy to mirror object names for easier organization.
File: item_name_from_collection.py
This Blender script renames selected objects to match the name of their parent (first linked) collection.
File: move_selected_to_collections_suffix.py
This Blender script moves each selected object into a new or existing collection whose name is the object’s name plus a configurable suffix. If the object is already in the correct collection, it is skipped to avoid unnecessary unlink/relink operations.
File: selected_to_collection_parented_empty.py
This Blender script processes each selected mesh object by:
- Creating an Empty object with the same name, if it does not already exist.
- Matching the Empty’s location, rotation, and scale to the mesh.
- Parenting the mesh to the Empty without altering world transforms, if it is not already parented.
- Creating or reusing a collection named after the mesh.
- Moving both the mesh and the Empty into that collection and unlinking them from all others.
File: selected_to_collection.py
This Blender script moves each selected object into its own new collection named after the object. The object is unlinked from any collections it currently belongs to, then linked exclusively to the newly created collection.
File: delete_all_materials.py
Delete all materials from selected objects.
Use case: sometimes when you import svg files, Blender creates materials you
do not need. This script helps delete those materials.
File: remove_material_duplicates.py
Remove duplicate materials in a Blender file.
It finds materials that share the same base name and have a numerical suffix,
for example .001, .002, and merges them into one.
Example:
Dark_WoodDark_Wood.001Dark_Wood.002
will be merged into Dark_Wood
File: create_material_palette_from_selected.py
Use case:
When you import models from external sources, you may want to quickly check how many materials they use and what their names are. This script makes it easier to visualize materials by creating one UV sphere per material and naming it after that material.
Features:
- Automatically generates a UV sphere for each unique material.
- Arranges the spheres in a row or in a grid with multiple rows.
- Lets you set a custom name prefix for the spheres.
- Provides customizable sphere geometry (segments, rings, radius) and spacing.
File: resize_texture_nodes.py
Enlarges the visual width of all Image Texture (TEX_IMAGE) nodes in the
node trees of selected objects’ materials, making them easier to locate in the
Shader Editor.
It is useful if you want all Image Texture nodes to be the same size or larger, making texture names easier to read.
File: swap_material_slots.py
Swaps the first and second material slots of all selected mesh objects and updates polygon assignments so materials remain correctly mapped.
File: modifier_tools.py
Creates a panel in the Tools tab.
Lets you remove and toggle modifiers on selected objects. The script shows only modifiers on selected objects, so if the selected objects do not have any modifiers, the dropdown will show none.
A collection of scripts used to clean up meshes.
File: loops_checker_dissolve.py
Dissolve every second edge.
File: loops_dissolve.py
Dissolve loops of selected edges.
File: loops_ring_dissolve.py
Dissolve loops of selected edges and the edges in between.
These are utility scripts.
File: find_heavy_meshes_in_scene.py
This script scans all objects in the current Blender scene and automatically selects mesh objects whose polygon count exceeds a specified threshold (default: 1,000 polygons).
I use it when I import a lot of meshes into a Blender file or want to find large or unoptimized meshes in the scene.
File: find_non_latin_characters.py
This script scans a .blend file for any datablocks whose names contain non-Latin characters. It checks:
- Objects
- Object data (meshes, curves, armatures, lattices, metaballs, grease pencils)
- Materials, textures, images, collections, node groups
- Nodes inside materials and node groups
- Text datablocks
For example, the Cyrillic letters р, о, с, х, е look identical to the Latin letters p, o, c, x, e, which can cause confusion or other issues.
File: save_file_size_repport.py
This script was inspired by Jake O’Neal in the video How I recreated Hoover Dam in 3D.
TL;DR: shows how file size changes after saving.
This script adds two handlers that monitor the size of the current .blend file before and after each save operation. When a file is saved, the script compares the new file size to the previous size and displays a popup showing the change in megabytes.
File: switch_curve_direction.py
Flips the direction of all selected curve objects in Blender.
File: matcap_name_copy_to_clipboard.py
Copies the active MatCap ID (the ID of the studio light used in 3D viewport shading) to the system clipboard so it can be pasted elsewhere.
This script is useful if you use MatCaps from this MatCaps Git repository
which have complex names like 4F4F4F_9C9C9C_121212_7C7C7C and you need to
know the name of the current MatCap.
File: copy_name_of_selected_collections.py
Adds an option to the Outliner collections context menu to copy the names of selected collections.
Tip: If you use it often, you may want to install it as a plugin.
File: copy_name_of_selected_objects.py
Adds an option to the Outliner objects context menu to copy the names of selected objects.
Tip: If you use it often, you may want to install it as a plugin.