Archive Creator
Make ZIP or TAR.GZ archives from your files — no uploads
How it works
Add any files — drag and drop or browse, any type and any number. Choose the output container: ZIP (deflate-compressed entries, opens everywhere, falls back to stored entries when deflate wouldn't help) or TAR.GZ (a ustar tarball gzipped whole, the Unix standard). Both are assembled directly in your browser: compression uses the browser's native CompressionStream, so your files never leave your device. Name the archive, click Create, and download the result — the before/after size and compression ratio are shown for every build.
Frequently asked
Are my files uploaded anywhere?
No. The archive is assembled entirely in your browser and compressed with the browser's built-in compression engine. Your files never touch a server.
Which formats can it create?
ZIP (deflate-compressed) and TAR.GZ. ZIP is the most compatible; TAR.GZ is standard on Linux and macOS.
Which format compresses best?
Both use the same DEFLATE algorithm, so ratios are similar. TAR.GZ compresses the files as one stream, which helps with many small similar files; ZIP compresses each file separately but allows extracting single files quickly.
Can I password-protect the archive?
No — classic ZIP encryption is insecure and modern AES zips aren't widely supported, so it's not offered. Your files stay on your device anyway, since nothing is uploaded.
Does it keep folder structure?
Files are stored flat under the names they were added with. To preserve a folder tree, open an existing archive in the extractor and repack it — that keeps its paths.
Is there a size limit?
ZIP output is capped at the format's 4 GB (non-ZIP64) limit; in practice browser memory is the real constraint for multi-gigabyte inputs.