What is a Gerber file?

A Gerber file is a standard file format (RS-274X) used by Printed Circuit Board (PCB) fabrication software. It describes the PCB images like copper layers, solder mask, legend, etc.

Yes, absolutely. This tool runs entirely in your browser (client-side). Your Gerber files are never uploaded to any server, ensuring 100% privacy for your intellectual property.

Can I view drill files?

This viewer is optimized for standard Gerber RS-274X files. While some drill files may render if they follow compatible syntax, it is primarily designed for copper, mask, and silk layers.

How do I export the view?

Once your file is rendered, you can use the 'Download SVG' button to save the current view as a scalable vector graphic file.

Online Gerber Viewer - Free, Fast & Secure PCB Layer Viewer

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Drag & Drop Gerber File
or Click to Upload

Layer Statistics

Width: -

Height: -

Units: -

Complexity: -

Layer Color

Actions

No file loaded

Upload a .gbr file to view

About Online Gerber Viewer

Welcome to the most advanced Online Gerber Viewer. Designed for electrical engineers, PCB designers, and hobbyists, our tool allows you to instantly visualize your Gerber (RS-274X) files directly in your web browser. Unlike other tools that require software installation or slow server uploads, our viewer processes everything locally on your device.

Why Use This Tool?

Checking your PCB manufacturing files before sending them to a fab house is critical. Errors in Gerber files can lead to costly manufacturing defects. Our tool provides a quick, free, and secure way to inspect your layers, verify dimensions, and ensure your design is ready for production.

Key Features

Instant Rendering: Uses advanced client-side parsing to render files in milliseconds.
100% Secure: Your proprietary designs never leave your computer. No server uploads means zero risk of IP theft.
Layer Statistics: Unique feature that automatically calculates board dimensions and complexity metrics.
Mobile Friendly: Fully responsive design works on tablets and desktops alike.
SVG Export: Convert your Gerber files to SVG format for documentation or further editing.

How to Use

Click the upload area or drag and drop your Gerber file (extensions like .gbr, .gtl, .gbl, etc.).
Wait a moment for the file to render in the viewer window.
Use the "Layer Color" picker to change the contrast for better visibility.
Check the "Layer Statistics" panel for board dimensions and unit information.
Click "Download SVG" if you need to save the visual representation.

Frequently Asked Questions

What file formats are supported?

We support standard RS-274X Gerber files. Common extensions include .gbr, .ger, .pho, .art, and layer specific extensions like .gtl (Top Layer) and .gbl (Bottom Layer).

Is this tool free?

Yes, this Online Gerber Viewer is completely free to use with no limits on file size or usage frequency.

Why does my file look empty?

Ensure you are uploading a valid RS-274X file. Some older RS-274D files (without embedded apertures) may not render correctly. Also, check if the file content is actually empty.

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