π AES-256 Military Grade Security
Encrypt File Online
Protect any file with a password securely inside your browser. Your files never touch any server.
β 100% Client-Side
β Zero Server Uploads
β Instant AES-256-GCM
Drop your file here or click to browse
Supports any file type (Documents, Images, Archives, PDFs, etc.)
filename.txt
Encryption Password
Confirm Password
Password Strength: Weak
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File Encrypted Successfully!
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Input Size
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Important Note: Keep your password safe. Due to military-grade AES-256 encryption, there is no way to recover lost passwords or decrypt files without the exact key.
Free Encrypt File Online β Secure Your Files with AES-256
In today's digital landscape, protecting sensitive personal and business information is paramount. Our free online file encryptor provides bank-grade AES-256 password protection directly within your web browser. Because all encryption and decryption operations run locally using the modern Web Crypto API, your files are never transmitted to any external server or cloud service.
How to Encrypt a File Online (Step-by-step)
- Select Your File: Drag and drop your file into the secure dropzone above or click to browse your device.
- Set a Strong Password: Enter a robust password to lock your file. You can also use our built-in password generator.
- Click Encrypt File: The browser executes AES-256-GCM encryption with PBKDF2 key derivation.
- Download Your Secure File: Download the protected file with a
.encextension and store your password safely!
Key Features of Our File Encryption Tool
- AES-256-GCM Encryption: The top security standard approved for protecting classified government and financial information.
- PBKDF2 Key Derivation: Strengthens passwords using 100,000 hash iterations to prevent brute-force attacks.
- 100% Client-Side Privacy: Zero server uploads guarantee total privacy. It even works completely offline!
- Built-In Decryptor: Easily decrypt any previously encrypted
.encfile directly inside the same interface.
Why Encrypt Your Files? (Benefits & Use Cases)
File encryption protects sensitive data against identity theft, unauthorized access, and data breaches. Common use cases include:
- Financial & Tax Documents: Secure bank statements, tax returns, and loan applications before cloud storage.
- Legal Contracts & NDAs: Safeguard confidential business agreements and client files.
- Personal Records: Protect passports, IDs, and medical files when sharing via email.
Learn more about AES-256 encryption to understand how modern cryptography shields your digital assets.
Frequently Asked Questions (FAQ)
Yes! This tool is 100% free with no hidden fees, subscriptions, or file size restrictions beyond your browser's available memory.
No, absolutely not. All cryptography runs locally in your web browser via the Web Crypto API. Your files never leave your computer or phone.
Because AES-256 uses military-grade security with no backdoor, it is mathematically impossible to recover files without the correct password. Please record your password securely!
Yes! Simply switch the tool to "Decrypt Mode" at the top, upload your encrypted file, enter the matching password, and download the decrypted original file.
Every file type is supported, including PDF, DOCX, XLSX, JPG, PNG, MP4, ZIP, and binary files.