Show HN: GerbDiff – Visual diff tool for PCB Gerbers (opens in new tab)

GerbDiff is a desktop app that provides layer-by-layer diff comparisons of PCB design files (Gerbers). The intended use-case is a production design environment to compare revisions of the same board where a design mistake can cost thousands of dollars. I built this app after personally experiencing the pain of shipping unintended design changes to fab. A quick rundown of the features:

- Local-only desktop app. Design IP never leaves the local machine. - In-house developed gerber parser. Needed to be bulletproof for design validation. - Automatic layer detection to make diff generation quick/painless. - Generate and export diff reports (PNG/HTML). Attach to reviews/PRs as design collateral. - Free Github Action so diff reports can be automatically added to PRs without running the tool.

If you want a longer read on the product thesis see: https://gerbdiff.com/blog/why-diff/

Would appreciate any/all feedback, especially from EEs on HN.