Convert GZ to 7Z
Free, fast and secure — convert GZ to 7Z right in your browser.
Convert GZ to 7Z for wider compatibility
Converting GZ to 7Z gives you a more widely supported file that opens cleanly across more devices, apps and platforms — handy when GZ will not play nicely everywhere.
How to convert GZ to 7Z
- 1 Drop your GZ file into the converter above.
- 2 It is converted to 7Z automatically — no settings to fiddle with.
- 3 Download your new 7Z file instantly.
GZ vs 7Z
| Feature | GZ | 7Z |
|---|---|---|
| Compression | Lossless | Lossless |
| MIME type | application/gzip | application/x-7z-compressed |
| Best for | Compressing a single file such as a log or backup — repacked into ZIP or TAR to hold many files. | Packing large collections as tightly as possible when recipients can use 7-Zip. |
About the formats
gzip file
GZ (gzip) compresses a single file rather than a bundle — it is the everyday compressor of the Unix world and the format behind gzipped web responses. To package many files it is combined with TAR as a .tar.gz.
Strengths
- Fast compression and decompression
- Universal on Linux, macOS and servers
- Great for logs and single large files
Limitations
- Compresses only one file at a time
- No folder bundling on its own
- Not native to Windows
Best for: Compressing a single file such as a log or backup — repacked into ZIP or TAR to hold many files.
7z archive
7z is the native format of 7-Zip, using LZMA compression to squeeze files far smaller than ZIP. It supports strong AES-256 encryption and solid archives, at the cost of needing 7-Zip-compatible software.
Strengths
- Excellent compression ratio
- Strong AES-256 encryption
- Handles very large archives
Limitations
- Needs 7-Zip-compatible software to open
- Slower to compress
- Less universal than ZIP
Best for: Packing large collections as tightly as possible when recipients can use 7-Zip.