Secure Crypt is a desktop application that protects your files and folders with AES-256-GCM authenticated encryption. It runs as a standalone executable on Windows, macOS, and Linux — no Python runtime or dependencies needed. Lock a file in seconds, share it safely, and unlock it on any supported platform with the correct password.Documentation Index
Fetch the complete documentation index at: https://mintlify.com/Anzi001/Secure-Crypt/llms.txt
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Installation
Download the prebuilt executable for your operating system and get running in minutes.
Quickstart
Encrypt your first file in under a minute with this step-by-step walkthrough.
Locking Files & Folders
Permanently encrypt individual files or entire folder trees with a single password.
Quick View Mode
Temporarily decrypt a file to view or edit it, then automatically re-encrypt on save.
Sharing Encrypted Files
Send encrypted files to others and guide recipients through opening them securely.
Encryption Details
Understand the AES-256-GCM algorithm, PBKDF2 key derivation, and binary file format.
What Secure Crypt Does
Choose a file or folder
Use the Lock File, Lock Folder, or Quick View buttons to select the target. Secure Crypt accepts any file type and any folder structure.
Enter a password
You are prompted for a password (and confirmation when locking). Secure Crypt derives a 256-bit key using PBKDF2-SHA256 with a random 16-byte salt — the same password always produces a different ciphertext.
Encrypt or decrypt
Locking produces a
.scrypt file (or .scryptfold for folders). Unlocking restores the original. Quick View decrypts to a temporary location, opens the file in its default application, and re-encrypts when you click Save & Relock.Key Features
AES-256-GCM
Authenticated encryption prevents both decryption and undetected tampering without the correct key.
Quick View
Open encrypted files in any application without a permanent unlock step.
Folder Encryption
Zip-based folder encryption keeps directory structure intact inside the encrypted archive.
Force Lock
Mark a file as Quick-View-only so recipients cannot permanently decrypt it.
Cross-Platform
Native executables for Windows, macOS, and Linux with no runtime dependencies.
Random Salt & Nonce
Each encryption operation uses a fresh 16-byte salt and 12-byte nonce for forward secrecy.