Open GZ files online

Open GZ files online

Decompress .gz files and extract .tar.gz archives in your browser.

Updated: November 8, 2026

What is a GZ file?

.gz is the gzip compression format. Unlike ZIP, gzip compresses a single file: data.csv.gz becomes data.csv once decompressed. Database dumps (.sql.gz), logs (.log.gz) and data exports often use it. When the file is called .tar.gz or .tgz, it contains a whole folder; see TAR.GZ files.

How to open GZ files here

  1. Click Browse above, or drop the GZ file on the box.
  2. The archive is opened on your device and its files are listed with their sizes.
  3. Click Download all as ZIP, tick the files you want and download them, or download a single file. Pictures and text files can be previewed first.

A single .gz file contains one file, so it is downloaded right away after decompression.

Other ways to open a GZ file

  • Linux and Mac terminal: gunzip file.gz (or gzip -dk file.gz to keep the original).
  • Mac: double-click the file.
  • Windows: 7-Zip, or File Explorer on Windows 11 23H2 and later.