MakeFileWork

Create a GZIP file

Compress one file to .gz locally, then verify it by decompressing and comparing every byte before download.

Real GZIP compression

This creates a standard GZIP stream for a single file. It is different from TAR.GZ, which packages multiple files inside TAR first.

Safe limits

Files are limited to 25 MB. Compression requires local CompressionStream support; unsupported browsers fail clearly instead of uploading the file.