Free Online ZIP Encrypt & Decrypt Tool - ATools

Free online standard ZIP encrypt & decrypt tool: Locally package files into password-protected standard ZIP archives (WinZip AES-256 & ZipCrypto), with decryption & extraction support.

View source on GitHub

Note: This tool creates industry-standard password-protected ZIP archives (WinZip AES-256 and ZipCrypto). They can be extracted directly using 7-Zip, WinRAR, macOS Archive Utility, or Windows Explorer with your password. All processing happens entirely in your browser locally.

Drop files here or click to upload. Supports multiple files.

Encryption & Compression Options

Password *

Encryption Algorithm

Compression Level6

0: store only; 1: fastest; 6: standard; 9: maximum

Output Archive Name

Encrypted ZIP Output

Select files, set password, and click 'Create Encrypted ZIP'

Generated .zip archives can be extracted directly with common zip utilities