Decrypt File Online
Securely restore your AES-256 encrypted .enc files directly in your browser. 100% private, client-side, and instant.
Free Decrypt File Online β Decrypt Encrypted Files Instantly
Restore and access your password-protected encrypted files effortlessly with our free client-side file decryptor. This online security utility allows you to decrypt files ending with .enc, .aes, or custom binary extensions that were encrypted using industry-standard AES-256-GCM. By entering the correct secret key or passphrase, the tool extracts embedded cryptographic salts and initialization vectors (IV), derives the key locally, and restores your original file in seconds.
How to Decrypt File Online Using This Tool
- Select or Drag File: Drop your encrypted file into the designated upload zone above or test using the sample file button.
- Enter Decryption Password: Provide the exact secret passphrase used during the encryption phase.
- Initiate Decryption: Click 'Decrypt File'. The Web Crypto API verifies data integrity tags and restores payload bytes in real-time.
- Preview & Download: Inspect the live text preview (for document formats) and download your unencrypted file instantly.
Key Features of Our File Decryptor Tool
- 100% Client-Side Privacy: Your sensitive files and passphrases never touch an external server or network connection. All computations execute inside your Web Browser memory.
- AES-256-GCM Compliance: Designed according to standard cryptographic specifications using PBKDF2 key derivation (100,000 iterations, SHA-256) and Galois/Counter Mode authentication tags.
- Integrated Text Preview: Readably decodes text files, notes, code snippets, or configuration documents prior to downloading.
- Data Integrity Verification: Computes standard SHA-256 cryptographic hashes for full file verification.
- Offline Functionality: Disconnect your internet network once the page is loaded to perform complete offline data decryption.
Why Decrypt Files Online? (Benefits & Use Cases)
File decryption is a fundamental aspect of digital privacy and data management. Learn more about encryption and decryption techniques to understand how modern ciphers safeguard electronic communication. Typical use cases include:
- Data Recovery: Restoring archived backups or password-locked personal files.
- Secure Communications: Safely opening sensitive confidential documents shared via secure channels.
- Cross-Platform Accessibility: Decrypting files on computers without administrative rights to install specialized desktop applications.
File Decryption Best Practices
When working with encrypted datasets, always retain secure backups of your raw encrypted blobs. Ensure your decryption passphrase matches exact case sensitivity, spaces, and special symbols, as AES-256-GCM authentication tags strictly reject altered inputs to prevent tampered data loading.