GerberViewer, the free online Gerber viewer
Fully‑compliant Gerber and Excellon drill viewer for your PCB engineering needs
Works in all browsers
Transparency support
Parses any file format



Online viewer
If you work with PCB manufacturing files, try our free online Gerber viewer. It displays Gerber (RS‑274X), Excellon (v1 and v2) and ZIP archives directly in your browser. Our implementation supports 100 % of the Gerber and Excellon specifications, making it the most comprehensive free viewer.

100% Gerber and Excellon support
Quickly view multi‑layer PCBs with full transparency. With complete Gerber and Excellon support, you can easily verify designs using the online viewer before manufacturing. Open ZIP files containing both Gerber and drill layers, enabling engineers to share multi‑layer PCBs directly in the viewer.
Comprehensive feature list
- View Gerber (RS‑274X) and Excellon files directly in your HTML5‑powered browser.
- Run the online viewer entirely on your computer with no external server interaction, ensuring that sensitive files never leave your machine.
- Render 100 % of the Gerber (RS‑274X) and Excellon specifications. We challenge you to find another viewer that can render this Excellon specification test file correctly.
- Render layers with transparency, making overlay comparisons easy.
- Pre‑renders all files, delivering a snappy interface when panning and zooming.
