What is a KZ file?
A .KZ file is a KuaiZip Compressed File. It is a proprietary archive format created by the software from KuaiZip.com. Users create these files to compress multiple documents, images, or folders into a single, smaller archive. The format uses a high-compression algorithm that claims to reduce file sizes more efficiently than standard ZIP or RAR formats.
How to open KZ files?
To open a .KZ file locally, you typically need the official KuaiZip software for Windows. However, popular security programs often flag this software as adware or a potentially unwanted program (PUP). Standard file archivers like 7-Zip, WinRAR, and PeaZip do not support the proprietary .KZ format. This makes it difficult to extract the data safely using open-source tools or command-line utilities.
Inspecting and viewing online
Because downloading the original software carries security risks, viewer.online/kz can analyze .KZ 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/kz is useful for identifying, inspecting, and understanding .KZ files without installing software or dealing with compatibility problems. This is highly recommended when you receive a .KZ file but want to keep your system safe from unwanted applications.