Password Protect a Folder
Drop in a folder's worth of files and get back one archive nobody can open without the password. Real AES-256 — not the broken encryption most tools still write.
Protect files with a password →A Pro tool — one free try with a free account · Files permanently deleted after 1 hour
How it works
Common questions
What encryption is used?
AES-256, the WinZip AES standard. This is deliberately not the legacy ZipCrypto scheme that older tools produce — ZipCrypto is broken by a known-plaintext attack and should not be relied on for anything private.
What can open the archive?
7-Zip on Windows, Keka or The Unarchiver on macOS, and p7zip or Ark on Linux. Windows Explorer and macOS Finder can list an AES archive but will not decrypt it, so it is worth telling your recipient which tool to use.
Are the file names hidden too?
No, and it is worth being clear about that. A ZIP keeps its list of names and sizes readable so any tool can show what is inside before asking for a password. The contents of every file are encrypted; the names are not. If the names themselves are sensitive, zip the files into an inner archive first and protect that.
Do you keep my password?
No. It is used once to build the archive and is never written to disk or logged. If you lose it the files cannot be recovered — there is no master key, which is the point.
Can I upload a whole folder?
Yes — drag a folder in and the browser hands us the files inside it. Up to 200 files per archive, and the total has to fit inside your plan's upload limit.
Is this a Pro tool?
Yes — it is part of the Pro tool set (Pro, Business and Enterprise). Every account, including Free, gets one free try. The everyday format converters stay free.