by binary-angel·Modeling
Images © binary-angel. Used for product review; image policy.
Edge Length Measure earns its place in the Blender extensions library by addressing a narrow gap: measuring individual edge lengths on the evaluated mesh in Object Mode, rather than the base mesh in Edit Mode.
Edge Length Measure is a Blender add-on by binary-angel that registers selected mesh objects and shows individual edge lengths and total edge length directly in the 3D Viewport and Sidebar. It is designed for precise measurement, modeling analysis, and technical workflows, and it reports edge lengths on the actual visible geometry in Object Mode.
The add-on targets a specific gap: when modifiers such as Armature or Subdivision Surface deform a mesh, the geometry shown in Object Mode can differ from the base mesh in Edit Mode, where Blender's built-in tools and many add-ons operate. Edge Length Measure reads the evaluated mesh from Blender's dependency graph, so it measures modifier-deformed geometry without applying or destroying modifiers. Measurements update automatically when the mesh or its modifiers change, and the add-on is optimized with caching.
Registered objects show individual edge lengths in the viewport, a total per object, and a grand total across all registered objects. Values use unit-aware formatting in mm, cm, m, or km based on Scene settings, and each object has its own visibility toggle. It is compatible with Blender 5.0 and newer.
Edge Length Measure is best for blender users doing precise measurement, modeling analysis, and technical workflows who need edge lengths on modifier-deformed geometry as it appears in Object Mode.
Edge Length Measure is completely free to download and use.
Edge Length Measure is compatible with Blender 5.0 and newer, and the developer lists it as tested with Blender 5.0+. It works in Object Mode, where it registers selected mesh objects and displays individual edge lengths, a total per object, and a grand total across all registered objects in the 3D Viewport and Sidebar. If you run an earlier Blender release, check the developer's GitHub page for compatibility details before installing, since the stated support begins at version 5.0.
Edge Length Measure installs from a single .py file. Download the .py file from the developer, open Blender, and go to Edit then Preferences then Add-ons. Click Install, select the downloaded .py file, and enable Edge Length Measure. Once enabled, open the Sidebar in the 3D Viewport by pressing N and select the Edge Length tab, where you can register selected meshes, toggle viewport visibility, and remove objects from the registry. You can also install it as a Blender extension via drag and drop.
Edge Length Measure fully supports modifier-deformed geometry, including Armature and Subdivision modifiers. It reads the evaluated mesh from Blender's dependency graph, so it measures the actual visible geometry in Object Mode rather than the base mesh, and it does this without applying or destroying your modifiers. Measurements update automatically when the geometry or the modifiers change, and the add-on is optimized with caching for performance. This makes it suited to technical and modeling workflows where the final deformed shape is what you need to measure.
Edge Length Measure is listed as free here, and it is released under the GNU General Public License v3.0 or later. According to the developer, the extension does not require special permissions. For the current source, license terms, and any issue reporting, refer to the developer's GitHub page. Since licensing and distribution details can change, checking the developer's page directly is the best way to confirm the terms that apply to your use before you rely on the add-on in a project.
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