Create a ZIP file. Your files never leave your device
A ZIP can bundle documents for an email, combine scans into one attachment, or package several files for a form that accepts only one upload. Select the files here and fflate compresses them into archive.zip in your browser. The finished ZIP downloads from local memory without passing through a server. Contracts, tax documents, medical records, and ID scans stay on your machine. There is no signup or file-size tier.
How it works
- Drop the files you want bundled. Any type, as many as you like.
- They are compressed into a single archive on your device.
- Download the finished archive.zip.
Frequently asked questions
Are my files sent to a server to be zipped?
No. The fflate compression library reads and compresses the files on your device. Contracts, records, and scans do not pass through someone else’s infrastructure to become a ZIP.
Will the ZIP open on Windows, macOS, and Linux?
Yes. The output is a standard ZIP using deflate compression, which current desktop operating systems open without additional software.
How much smaller will my files get?
It depends on what you zip. Text, spreadsheets, code, and uncompressed documents often shrink dramatically. JPGs, videos, and other already-compressed files barely shrink at all. For those, the ZIP’s value is bundling many files into one, not saving space.
Can I password-protect the ZIP?
No, and that is partly deliberate: classic ZIP encryption (ZipCrypto) is weak enough to be cracked and gives a false sense of security. If you genuinely need an encrypted archive, use 7-Zip with AES-256 or a dedicated encryption tool, then send that file.