Download the software for free

Indeed, the PLUGINS-CAD software includes this tool for free.


AutoCAD explode anonymous blocks – clean special blocks

Purpose: Explode anonymous and special blocks in AutoCAD.
Note: EXPLOSE-ANONYME-BLOC.
Processing mode: DWGs are processed one by one.

This tool searches for anonymous or special blocks inside the DWG and explodes them into simple geometry.
These blocks are often auto-generated or created by dynamic tools and can slow down the file or create clutter.
By converting them to basic lines and arcs, the drawing becomes lighter and easier to use.

However, this operation can modify the geometry. As a result, you must check the final DWG carefully.
For additional information on block types, you can visit the
official Autodesk documentation.
You can also view our
other AutoCAD productivity plugins.

⚠ Warning: Exploding blocks can remove 3D information, flatten geometry and delete non-visible objects.
Always compare the result with the original file.

How the anonymous block explosion works

  1. Important warning

    First, the process may remove non-visible objects or flatten 3D elements into 2D.
    Because of this, a manual verification is required once the file is generated.

    Warning message before exploding anonymous AutoCAD blocks
    Destructive action: final check is mandatory.
  2. Opening the DWG

    Next, the software opens the DWG that needs to be cleaned.
    This step prepares the file for analysis and ensures that all objects can be scanned correctly.

    Opening the DWG before analyzing anonymous AutoCAD blocks
    Loading the drawing before inspection.
  3. Detecting anonymous and special blocks

    Then, the tool scans the file to detect:

    • anonymous blocks (with auto-generated names),
    • special blocks, such as internal dynamic blocks.

    These elements often cause slowdowns or make the file heavier than necessary.

    Detection of anonymous and special AutoCAD blocks
    Identification of non-standard blocks.
  4. Exploding the blocks

    After detection, all anonymous and special blocks are exploded into basic geometry.
    As a result, the drawing no longer contains complex hidden blocks, only simple visible entities.

    Exploding anonymous AutoCAD blocks into simple geometry
    Complex blocks become standard geometry.
  5. Saving the DWG

    Finally, the cleaned DWG is saved.
    Although the file is now lighter, a visual inspection is strongly recommended to confirm the result.

    Saving the DWG after exploding anonymous AutoCAD blocks
    Saved file after removing special blocks.

Download the software for free

Indeed, the PLUGINS-CAD software includes this tool for free.