Convert ZIP to GZ — Free Online Converter
Convert ZIP Archive (.zip) to Gzip Compressed Archive (.gz) online for free. Fast, secure archive conversion with no watermarks or registration.
安全な転送
HTTPS暗号化アップロード
プライバシー優先
処理後にファイルを自動削除
登録不要
すぐに変換を開始
どこでも動作
あらゆるブラウザ、あらゆるデバイス
変換方法
Upload your .zip file by dragging it into the upload area or clicking to browse.
Choose your output settings. The default settings work great for most files.
Click Convert and download your .gz file when it's ready.
ZIPからGZへの変換について
ZIP is the universal archive format with per-file DEFLATE compression and random access capability, supported by every operating system. GZ (Gzip) is the standard Unix single-file compression format, also using DEFLATE but applied as a stream compressor rather than an archive format. GZ is the backbone of web content-encoding, Unix log compression, and package distribution.
Converting ZIP to GZ extracts the archive contents and produces gzip-compressed output. For single-file ZIP archives, this produces a streamlined .gz file. For multi-file ZIP archives, the output is a .tar.gz tarball that preserves the directory structure. This conversion integrates ZIP-distributed content into Unix-native workflows.
ZIPをGZに変換する理由
Unix system administration, web infrastructure, and DevOps tooling are built around gzip. HTTP content-encoding uses gzip by default. Log rotation produces .gz files. Package managers distribute .tar.gz tarballs. When you receive files in ZIP format that need to enter these Unix-native workflows, converting to GZ (or .tar.gz) aligns the format with the ecosystem's expectations.
For single-file archives, .gz is a more efficient container than ZIP. ZIP adds per-file headers, a central directory, and end-of-central-directory records — overhead that a simple .gz file avoids. A single file compressed as .gz is 100-500 bytes smaller than the same file in a ZIP, with identical compression since both use DEFLATE.
主な活用例
- Integrating ZIP-downloaded content into Unix workflows that expect .gz or .tar.gz format
- Preparing single-file archives as streamlined .gz files for web content-encoding pipelines
- Converting ZIP attachments into .tar.gz format for Linux server deployment
- Feeding ZIP-distributed data into log analysis or data processing pipelines that consume .gz input
- Standardizing mixed archive collections to gzip format for consistent Unix tooling
仕組み
The ZIP central directory is parsed to enumerate entries. Each file is decompressed from its individual DEFLATE stream and CRC32-verified. For single-file ZIP archives, the extracted file is gzip-compressed directly to produce a .gz output. For multi-file ZIP archives, extracted files are bundled into a tar archive preserving the directory hierarchy, then the tar is gzip-compressed to produce a .tar.gz output. Both ZIP and GZ use DEFLATE, so compression ratios are nearly identical.
品質とパフォーマンス
Completely lossless for file content. Every file is extracted from ZIP (CRC32-verified) and recompressed with gzip. File data is byte-for-byte identical. Both formats use DEFLATE, so the output is approximately the same size as the input. ZIP-specific features (per-file random access, central directory) are replaced by gzip's simpler sequential format.
デバイス互換性
| Device | ZIP | GZ |
|---|---|---|
| Windows PC | Partial | Partial |
| macOS | Partial | Partial |
| iPhone/iPad | Partial | Partial |
| Android | Partial | Partial |
| Linux | Partial | Partial |
| Web Browser | No | No |
最良の結果を得るためのヒント
- 1For single-file ZIPs, the .gz output is more efficient — less overhead than ZIP's per-file header structure
- 2For web serving, convert individual files from the ZIP to individual .gz files for nginx gzip_static compatibility
- 3Both formats use DEFLATE, so expect no significant size difference — the conversion is about format compatibility, not compression improvement
- 4If you need better compression, convert to .tar.xz (LZMA2) or .7z instead of .gz
- 5Verify the output with `gzip -t file.gz` or `tar -tzf file.tar.gz` depending on whether the input was single-file or multi-file
関連する変換
ZIP to GZ converts the universal archive format into Unix's native compression format. Single-file ZIPs become streamlined .gz files; multi-file ZIPs become standard .tar.gz tarballs.
ZIPとGZの比較
| 特徴 | ZIP | GZ |
|---|---|---|
| 正式名称 | ZIP Archive | Gzip Compressed File |
| 拡張子 | .zip | .gz |
| 最適な用途 | Universal support | DEFLATE compression |