Secure File Encryption & Hashing Tools
Encrypt files and text with Argon2id + AES-GCM, generate password hashes, and manage salts directly in your browser.
🔒 Encrypt Files
Choose a file and encrypt it with a password, without it leaving your browser.
Go to Encrypt🔓 Decrypt Files
Choose an encrypted .enc file and decrypt it with your password to restore the original file, again without it leaving your browser.
Go to Decrypt📝 Text Encryption
Encrypt or decrypt text messages directly in your browser with a secure password.
Go to Text Crypto🔑 Hash Generator
Generate Argon2 hashes with custom parameters or your own salt configuration.
Go to Hash Generator🛡️ Why Choose Blackhole?
- Military-Grade Encryption: Uses Argon2id winner of the Password Hashing Competition and AES-256-GCM
- Zero-Knowledge: Your passwords are never stored or logged on the server
- Privacy First: Nothing you encrypt is ever sent to us — no accounts, no uploads, no limits
- Open & Transparent: Based on proven cryptographic standards