What is a BR file?
A .BR file is primarily a Brotli Compressed File developed by Google. Brotli is an open-source data compression algorithm used to speed up web page load times. Web servers often compress HTML, CSS, and JavaScript files into .BR format before sending them to the browser. Unity also uses Brotli to compress WebGL game data to reduce download sizes.
However, the .BR extension has multiple possible meanings. It can also be an automation project binary module for B&R Automation Studio or a source code file for the Bear programming language. Because .BR files serve different purposes, we recommend using viewer.online/br to identify the actual format of your file.
How to open BR files?
Normally, web browsers automatically extract and open .BR files in the background while loading web pages. If you download a .BR file to your computer, you can unpack it using command-line tools like the official Brotli library or modern archive managers like PeaZip. If the file contains Unity game assets, you typically need the Unity engine or a Unity asset extractor to read it.
If you need to change the archive format, we recommend file conversion to sensible target formats like .ZIP or .GZ on convert.guru.
Inspect and View BR Files Online
viewer.online/br can analyze .BR files to identify the exact format and creator software, inspect the file structure, extract readable text, and check whether an online preview is available.
Summary
viewer.online/br is highly useful for identifying, inspecting, and understanding .BR files without installing software or dealing with compatibility problems.