gerblook.org

What It Is

GerbLook is a free online Gerber file viewer designed for PCB design workflows. Users can upload a Gerber file directly or enter the URL of a Gerber file. The service renders and displays PCB design images based on Gerber 274x files, helping users check whether each board layer is correct and verify file integrity.

Core Features and Ecosystem

Based on the captured text, its positioning is very clear: it is an online Gerber file viewer, not a full EDA design tool. It supports Gerber files generated by common PCB design software such as KiCad, Eagle, Altium Designer, EasyEDA, and DipTrace, which makes it more of a lightweight checking tool after design completion and before PCB fabrication. Platform compatibility appears strong: the text explicitly mentions support for Mobile and Desktop, as well as compatibility with Windows, Apple, Linux, Android, and iOS. In theory, as long as a browser is available, it should work on most devices.

Pricing and Ease of Use

GerbLook’s pricing is straightforward: it is free to use. The page states that no download or registration is required, which is especially convenient for quick Gerber file checks and lowers the barrier for hardware engineers, students, and electronics hobbyists. Compared with installing a local Gerber viewer, it is better suited for quick previews, cross-device viewing, or temporarily checking files on a non-primary workstation.

Pros and Cons

Its advantages are that it is lightweight, free, registration-free, cross-platform, and supports Gerber files exported from mainstream PCB tools. It also offers two input methods: file upload and URL. The limitations are also fairly obvious: the text does not state whether it is open source, whether it can be self-hosted, or whether it provides an API/SDK, team collaboration, annotations, manufacturing rule checks, security policies, or file retention policies. For users working on commercial hardware projects, privacy and compliance risks should still be assessed before uploading design files.

Who It’s For and Access from China

GerbLook is suitable for PCB designers, hardware engineers, and electronics hobbyists who need to quickly inspect Gerber layers before sending a board for fabrication, especially in scenarios where they do not want to install software or need to view files across devices. The captured text does not provide information about access from China, so actual availability should be verified through local network testing. If access is unstable, alternatives include the built-in viewer in KiCad, EasyEDA, the viewing features in Altium Designer, or online Gerber viewing tools provided by domestic PCB prototyping platforms.