How to convert ZIP to GZ
- Add your .ZIP file - drop it in the box above or click to browse.
- Convert it to .GZ in a few seconds.
- Download your new .GZ file.
What to expect
- Files are re-compressed into the gzip format; contents are unchanged, only the wrapper differs.
- gzip compresses a single stream, so multiple files are typically tarred first (
.tar.gz). - gzip uses DEFLATE like ZIP, so expect a similar compression ratio rather than a dramatic size drop; extract only from trusted sources.
Frequently asked questions
What does converting ZIP to GZ do?
ZIP is a multi-file container, whereas gzip compresses a single stream, so the data is re-compressed into the gzip format. The underlying files are not modified; the compression wrapper changes.
Can a GZ contain multiple files like a ZIP?
No, plain
.gz holds a single file or stream. Multiple files are normally combined with tar first, producing a .tar.gz, which is the usual way gzip packages many files.What opens a GZ file?
On Windows, 7-Zip or PeaZip; on macOS, Archive Utility opens it by double-click; on Linux,
gunzip file.gz or tar -xzf file.tar.gz. These are all free.Will the file get smaller?
gzip and ZIP both use DEFLATE, so compression is broadly similar; the main difference is packaging, not ratio. Already-compressed data inside the ZIP will not shrink meaningfully when re-compressed.
