Curve Tools


This add-on provides an extensive set of tools for the manipulating and editing of curves. Several CAD style curve tools are included.


  • Open Blender and go to Preferences then the Add-ons tab.
  • Click Add Curve then Curve Tools to enable the script.


Located in the 3D View ‣ Sidebar ‣ Edit tab.

This add-on is split into sub panels with each panel having it's own specific set of tools.


One Curve

Curve Info
Print splines, segments and empty splines information to the Info header and Info editor.
Calc Length
Calculate the length of the curve and show in the add-on's panel.
Curve Splines Info
Print splines information to the Info header and Info editor.
Curve Segments Info
Print segments information to the Info header and Info editor.
Set origin to spline start
Move the origin of the curve to the first point.


Intersect curves
Create an intersection between flat curves on the same plane.

Two Curves Loft

Loft a mesh object between two Bézier curves.
Auto Loft
Turn on to store the loft data if you move or edit the curves.
Update Auto Loft
Press this button to update the new loft mesh position after moving or editing parent curves.


Curve Outline
Create an outline around a selected curve object.
Separate Outline or Selected
Separate the Outline mesh from the original.
Round or chamfer Bézier point fillets.
Handle Projection
To do.
Subdivide selection or filleted corners.
Scale Reset
Reset the objects scale to (1, 1, 1).
It creates a surface from a profile and two paths. The order in which you select the curves and its direction is important to make this work right.
Convert Selected Faces to Bézier
Select faces and convert them to Bézier curves.
Convert Bézier to Surface
Convert the selected curve to a NURBS surface.


Offset Curve
Create an offsetted array.
Boolean Two Selected Spline
Boolean selected curves on a 2D plane.
Multi Subdivide
Subdivide with level of details.
Split by Selected Points
Cuts the selected points creating openings.
Remove Doubles
Remove doubled points.
Discretize Curve
Disconnect the selected points.
Array Selected Spline
Create an array of the selected curves in Edit Mode.

Curves Utils

Show Point Resolution
Display the resolution in the interface with a colored overlay.
Show and Arrange Sequence
Display and arrange the sequence.
Remove Splines
Remove selected splines based on a threshold.
Join Splines
Join selected splines based on a threshold.
Tools for paths.


Category:Add Curve
Description:Adds functionality for Bézier/NURBS curve/surface modeling.
Location:Sidebar ‣ Edit tab
File:curve_tools folder
Authors:MacKracken, cwolf3d, Alexander Meißner (Lichtso)
Contributors:guy lateur, Alexander Meißner (Lichtso), Dealga McArdle (zeffii), Marvin K. Breuer (MKB)
Maintainer:Vladimir Spivak (cwolf3d)
Support Level:Community
Note:This add-on is bundled with Blender.