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Tools/Specialist viewers/PCB BOM Placement Viewer

PCB BOM / CPL Placement Viewer

Join BOM and placement coordinates to inspect references, sides, positions, rotations, and part groups.

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Private local specialist viewer

Files are parsed in this browser and are not uploaded.

How to inspect BOM, CPL, CSV, TSV files

EDA tools and factories disagree on BOM/CPL column names, origins, and rotation conventions. This viewer aids assembly review but cannot generate a trusted placement-machine program.

  1. Choose BOM and CPL/pick-and-place CSV files and confirm delimiter and encoding.
  2. Map reference, part/value, footprint, X, Y, rotation, and side columns.
  3. Review unmatched references, duplicates, and coordinate bounds.
  4. Search R23/U5 or group parts; verify side and rotation before production import.

What this tool helps with

  • Locate references and grouped parts quickly
  • Expose BOM and placement mismatches
  • The file is parsed inside this browser tab and is not uploaded to FreeTool to use the tool.

Compatibility and limitations

  • Without an outline/assembly drawing only coordinate points can be shown
  • Angle, origin, mirroring, and bottom-side rules vary by EDA and factory
  • Not a placement-program generator or production-release record

Frequently asked questions

Why do BOM and CPL rows not match?

Typical causes are the wrong reference column, multiple references in one cell, or surrounding whitespace.

Why are bottom rotations reversed?

Bottom mirroring and rotation depend on exporter and factory convention; verify against a known board.

Are customer BOM files uploaded?

The file is parsed inside this browser tab and is not uploaded to FreeTool to use the tool.