GerbDiff – Visual diff tool for PCB Gerbers

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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.

Visit product View on Hacker NewsMay 25, 2026

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