GZIP Compressor - Compress Files with Gzip

Compress files using gzip in your browser. Reduce file size for transfer and storage. Private, browser-based compression tool.

Input File

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Gzip uses the DEFLATE compression algorithm, combining LZ77 and Huffman coding.

Gzip is a popular compression format that reduces file sizes using the DEFLATE algorithm. It's standard on Unix systems and the web.

Text files compress well (60-90% reduction). Already compressed formats like JPEG or ZIP see minimal benefit.

Yes. Compression happens entirely in your browser using the CompressionStream API. Nothing is uploaded.

Gzip compresses single files. For multiple files, create a TAR archive first, then gzip it (.tar.gz).

Modern browsers with CompressionStream API: Chrome 80+, Edge 80+, Firefox 113+, Safari 16.4+.

Gzip files use .gz extension. The original filename is preserved inside for decompression.

This is a compressor. Use gunzip on your system or our Gzip Decompressor tool to extract.

The browser's default compression level is used, which provides a good balance of speed and size.

No. Gzip compresses single files. For folders, create a TAR archive first then gzip the archive.

No. Gzip and ZIP are different formats. Gzip compresses a single file; ZIP can bundle multiple files.