# GZIP Compressor

Compress any single file into the GZIP format with our GZIP Compressor. Upload a log, a database dump, a CSV export or any other file up to 10 MB and download it as a .gz file compressed with Deflate, with the original file name stored in the GZIP header. Useful for developers and administrators who need gzip output for servers, data pipelines and uploads without opening a terminal.

## Frequently asked questions

### How do I compress a file with GZIP?

Upload the file and click Compress File. The tool compresses it and offers the result as a download with .gz appended to the original name, such as data.csv.gz.

### Can I compress several files into one .gz?

No. GZIP compresses exactly one file. To bundle several files, use the TAR Creator with the TAR.GZ format, which packs them into a TAR first and then compresses it with GZIP.

### Which compression level is used?

Files are compressed with Deflate at level 6, the default of the gzip command. It gives close to the smallest size at a fraction of the time the maximum level takes.

### How much smaller will my file get?

Text, logs, CSV, JSON, HTML and SQL dumps often shrink to a fifth or less of their size. Images, videos, PDFs and archives are compressed already and barely change, and can even grow by a few bytes.

### What is the maximum file size?

You can compress a file of up to 10 MB in one request. Larger files are refused with a message so the result stays quick to download.

### Is the original file name kept?

Yes, when the name uses Latin characters it is stored in the GZIP header, so gunzip -N restores it. The download itself is always named after the original file with .gz added.

### How do I decompress the result?

Run gunzip data.csv.gz on Linux or macOS, open it with 7-Zip on Windows, or use the GZIP Decompressor on this site. Every gzip-compatible program reads the output.

### Can I use the output for HTTP compression?

Yes. The output is standard GZIP as defined in RFC 1952, so you can serve a precompressed .gz file with Content-Encoding: gzip from servers such as nginx.

### Is GZIP the same as ZIP?

Both use Deflate, but a ZIP is an archive of many files with a directory, while GZIP wraps a single stream. Use the ZIP Creator when the recipient expects a .zip file.

### Is my file kept on the server?

No. The file is compressed in memory for this request and returned to you at once. Nothing is stored afterwards.

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