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GerbDiff — Local-First Gerber Diff Tool for PCB Engineers
benwoodruff · 2026-05-26 · via Hacker News: Show HN

Side-by-Side & Overlay

Compare two Gerber projects with synchronized pan and zoom. Switch between side-by-side and color-coded overlay views.

Full Gerber Support

X1, X2, aperture macros, step-and-repeat, Excellon drill files. Handles real-world production Gerbers from any EDA tool.

Automatic Layer Matching

Detects and pairs layers across project revisions automatically. Supports copper, soldermask, silkscreen, drill, and more.

Local-First & Private

All parsing, rendering, and diffing happens locally on your machine. Your Gerber files are never uploaded or stored externally.

Export Reports

Generate PNG screenshots or self-contained HTML diff reports to share with your team or archive for review.

Measurement Tool

Measure distances directly on the board in mils or millimeters. Click to place measurement points with live readout.