GZ to ZIP

Upload a GZ file and download it as ZIP. Free to start.

Drop files here, or press Enter to choose them. Up to 50 MB per file.
Drop a GZ file hereFree · up to 50 MB · 10 operations in total without an account · or paste with Ctrl+V
  • Sent over HTTPS · link expires in 24 h

How it works

  1. Step 1:

    Drop the GZ file on the orange block above, or press “Choose GZ”.

  2. Step 2:

    Press “Convert to ZIP”. The block shows the progress while the server converts the file.

  3. Step 3:

    Press “Download” to save the ZIP file. On Free the link works for 24 hours.

How GZ to ZIP conversion works

GZ file (GZ) stores data in the GZ format. ZIP Archive (ZIP) bundles multiple files using DEFLATE or Store compression with a central directory index, supported natively on every major operating system. This conversion changes the file's encoding, compression method, and supported feature set. The contained files are extracted and re-packed with the target format's compression; the files themselves stay bit-for-bit identical; only the container and ratio change. The result is a standard ZIP file readable by any compatible application. 1converter handles GZ-to-ZIP conversion server-side: files are uploaded over HTTPS, processed on isolated cloud infrastructure, and the converted output is available for download for 24 hours before automatic deletion. No account is required for standard conversions.

When to convert

What the ZIP file is good for and why people convert to it.

  • Makes GZ contents easier to share with ZIP-friendly tools and operating systems
  • ZIP supports storing multiple files in one container, unlike typical single-stream GZ files
  • Sending a .gz backup to a recipient whose tools expect ZIP archives
  • Packaging a single-stream GZ into a broader ZIP distribution bundle

Where your file goes

  • It travels to our server over an encrypted HTTPS connection and is converted there.
  • The ZIP file comes back as a private link. It stops working after 24 hours on Free and 7 days on paid plans, and then the files are deleted.

Questions and answers

What people ask before converting GZ to ZIP.

Ask supportAll questions
Will converting GZ to ZIP change the actual file contents?
The converter decompresses the GZ stream and repacks into a ZIP container; the extracted payload bytes should match the original. Only container metadata/compression method typically differs.
Does ZIP keep the same compression as GZ?
No—GZ uses gzip (DEFLATE in a single compressed stream), while ZIP uses its own container structure and can use DEFLATE or store. The size may change depending on ZIP settings.
Can a ZIP preserve the original GZ as a single file entry?
Yes, the tool can place the decompressed content into ZIP entries, but it cannot keep the GZ stream compression exactly as-is because ZIP is a different container format. The result is the extracted data wrapped in ZIP.
Are ZIP files more compatible than GZ?
Usually yes: ZIP is widely supported by common archivers across Windows, macOS, and Linux. GZ is often supported too, but some workflows expect ZIP specifically.

More about this pair

Many files at once? Starter converts 5 at a time, 100 a day.

See plans