7Z to TAR.GZ Converter
Convert 7Z to TAR.GZ online for free. Fast, secure archive conversion that preserves folder structure and file integrity. No software installation required.
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Checking files and selected output formats.
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Convert 7Z Archives in 3 Steps
Repackage archived files for better compatibility, compression, or extraction support without installing desktop archive software.
Drag and drop your .7z file into the converter above, or click "Choose Files" to browse your device.
Click "Convert All" and our server re-packs your files from 7Z into GZ format while preserving the complete folder structure.
Your converted .gz archive is ready instantly. Click Download to save it to your device.
Why Convert 7Z to GZ
Gzip is the default compression tool on Linux and Unix systems. Source code tarballs, package distributions, and system backups throughout the open-source world use .tar.gz as the standard format.
Gzip offers a good balance between compression ratio and speed. Files compress and decompress quickly, making GZ suitable for real-time log compression, web server content encoding, and scripted workflows.
Web servers use gzip compression to reduce the size of HTML, CSS, and JavaScript delivered to browsers. Every modern browser supports gzip content encoding for faster page loads.
Gzip works with Unix pipes, allowing on-the-fly compression and decompression without temporary files. Chain gzip with tar, cat, ssh, and other commands for efficient data processing pipelines.
Every Linux distribution, macOS installation, and Unix system includes gzip by default. Windows users can extract GZ files with 7-Zip, WinZip, or Windows Subsystem for Linux.
7Z vs GZ: Side-by-side
Technical comparison of the two formats — useful for deciding which to use, or for confirming what changes during conversion.
| Property | 7Z | GZ |
|---|---|---|
| Full name | 7-Zip Archive | GNU Zip |
| Year introduced | 1999 | 1992 |
| Developer / standard body | Igor Pavlov | GNU Project |
| MIME type | application/x-7z-compressed | application/gzip |
| File extension | .7z | .gz |
| Compression | LZMA / LZMA2 (best ratio of common formats) | DEFLATE (single-file compression) |
| Color / data depth | N/A | N/A |
| Max dimensions / size | 16 EB file size | 4 GB uncompressed (typical) |
| Transparency | No | No |
| Animation | No | No |
| Standard / specification | 7-Zip (open) | IETF RFC 1952 |
| Best for | Maximum compression — typically 30–50% smaller than ZIP | Single-file compression, often inside .tar.gz archives |
About the 7Z Format
7Z (7-Zip Archive) is an open-source archive format created by Igor Pavlov in 1999 for the 7-Zip compression program. It uses the LZMA2 compression algorithm, which achieves 30-70% better compression ratios than ZIP on most file types. This makes 7Z the preferred choice when minimizing archive size is the top priority, particularly for large software distributions and data backups.
Beyond superior compression, 7Z supports AES-256 encryption with the option to encrypt file headers as well, hiding even the names of archived files. It also supports solid compression, which compresses multiple files together as a single data stream for even better ratios. The main drawback is that 7Z requires 7-Zip or a compatible third-party tool to create and extract, as it is not natively supported by most operating systems. It is best suited for scenarios where recipients can install 7-Zip and maximum compression is desired.