LDR Converter

Extract text from LDR files


Drop or upload your .LDR file
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How to extract text from your LDR file

  1. Click the "Select File" button above, and choose your LDR file.
  2. You’ll see a preview, if available.
  3. Click the "Convert file to..." button to extract text information.

Convert LDR to another file type

To convert your LDR file to another format, you need LeoCAD or other 3D software.

  • LDR to LAS
  • LDR to HDR
  • LDR to LUX
  • LDR to DWG
  • LDR to DXF
  • LDR to DGN
  • LDR to RVT
  • LDR to RFA
  • LDR to SKP
  • LDR to 3DM
  • LDR to STEP
  • LDR to IGES

Convert a file to LDR

To convert other file formats to the "LEGO CAD Model" file type, you need software like LeoCAD or a similar tool.

  • SLDASM to LDR
  • DGN to LDR
  • PRT to LDR
  • IAM to LDR
  • X_B to LDR
  • CATPRODUCT to LDR
  • SLDPRT to LDR
  • RVT to LDR
  • ASM to LDR
  • DWG to LDR
  • CATPART to LDR
  • DXF to LDR

About LDR files

The .LDR file extension is primarily associated with the LDraw open standard, a system used to create virtual 3D LEGO models. Unlike standard 3D files that store geometry, an .LDR file is a plain-text list of commands referencing part numbers from the extensive LDraw Parts Library. This creates a significant usability hurdle: if you try to open an .LDR file without the specific LDraw library installed and configured, the model will fail to load or appear empty. Furthermore, these files are not natively supported by mainstream 3D software like Blender or Maya without specialized plugins, and they cannot be opened by standard web browsers or image viewers.

To share your creations or use them in other applications, conversion is essential. For 3D printing, converting .LDR to STL is the standard workflow. For rendering, animation, or game development in engines like Unity, users should convert .LDR to OBJ, FBX, or DAE (Collada) to bake the geometry into a self-contained format. For quick visual sharing without requiring the recipient to install CAD software, converting to PNG or PDF allows for easy viewing. Less frequently, .LDR files may refer to firmware loader files for Analog Devices Blackfin processors, which are strictly for embedded systems development.

Convert.Guru analyzes your LDR file, detects the exact format, and lets you read the text inside.

Users also converted LDRT, LXF, IO, LXFML, JPG, ZIP, OBJ, PNG, HDR, PDF, MPD, TXT and GLB files.



The LDR Converter Story

The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our LDR converter.