miniPCB is not a PCB editor — it's your manufacturing review tool. Drop in the fab's ZIP and instantly check for issues on your own Mac.
Specific features built for manufacturing review, not a generic viewer
Drop in fab ZIP, supports Gerber RS-274X / X2, Excellon drill, ODB++ (tgz), KiCad .kicad_pcb. Auto-detects GTL/GBL/mask/silk layers with X2 metadata and KiCad naming, manual override available.
Layer show/hide, solo, opacity, color, sort. Point-to-point distance, ΔX/ΔY, trace width, pad size, hole diameter, board dimensions, keeps last 20 measurements. Metal-accelerated rendering.
Rev A ↔ Rev B auto-matched layers, red=old, green=new, gray=unchanged. Click differences to locate on canvas, revision workspace manages multiple versions.
Missing outline, missing drills, duplicate layers, unexpected layers, unclosed outline, holes outside board, misclassified layers. Check min trace/space/aperture against fab capabilities (JLCPCB / PCBWay / custom).
Finder Quick Look preview (spacebar), canvas annotations and one-click screenshot, export multi-page PDF review report. Drill stats by diameter PTH/NPTH count, board summary with key parameters.
Review pipeline has zero network access. No account, no telemetry, files never uploaded. Metal GPU-accelerated rendering, smooth pan/zoom even with large files.
For people who receive manufacturing packages and need to verify them quickly on Mac
Gerber package arrived from the fab, drop it in to check if layers are correct, outline is closed, no missing drills. Done in minutes without opening a full PCB editor.
Procurement, project managers, or makers with manufacturing packages need to confirm board outline, hole positions and critical clearances on their Mac, without understanding the full design file structure.
Before sending to the fab, check minimum trace width, spacing and drill diameter against JLCPCB or PCBWay capability specs, catch designs that may exceed process limits early.
After installation, select a ZIP in Finder and press spacebar for Quick Look preview of PCB layers, no need to open the app. Great for quickly browsing multiple manufacturing packages.
Free covers basic review, Pro is a one-time purchase to unlock everything
macOS 14+ · Apple Silicon & Intel
Free version includes basic review features
Your manufacturing files always stay on your own computer
Review pipeline has zero network access, files never leave your Mac
No registration, no login, download and use immediately
No usage data collected, no diagnostics sent
This website itself also loads no analytics scripts or trackers.