[ENCRYPT & DECRYPT FILES & TEXT ONLINE]

Client-Side File & Text Encryption Tool - Zero Uploads, Complete Privacy

ENCRYPT_FILE_ONLINE_v1.0.0
🔒 [ENCRYPT] 🔓 [DECRYPT]

[1] SELECT FILE

[2] CHOOSE ENCRYPTION ALGORITHM

[4] ENCRYPT FILE

[WHY ENCRYPT & DECRYPT FILES & TEXT WITH OUR TOOL]

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100% Client-Side Encryption: All file and text encryption happens directly in your browser. Your files and messages never leave your device, ensuring complete privacy and security.

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Zero Uploads: Unlike other online encryption tools, we never upload your files or text to any server. Everything is processed locally on your device.

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Military-Grade Encryption: Uses AES-256-GCM and ChaCha20-Poly1305, the same encryption standards used by governments, banks, and enterprises worldwide for securing sensitive data.

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Free & Open Source: This encryption tool is completely free with transparent, auditable code. Verify the security yourself - no hidden costs or subscriptions.

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Versatile Encryption: Encrypt files (PDFs, documents, images, videos) and text messages with the same strong encryption. Switch between file and text modes seamlessly.

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Secure Key Management: If you lose your encryption key or password, your encrypted data is permanently unrecoverable. This ensures maximum security - we cannot access your data, even if we wanted to.

[HOW TO ENCRYPT FILES & TEXT ONLINE]

File Encryption Process:

  1. Select any file from your computer (PDF, document, image, video, etc.)
  2. Choose your encryption algorithm: AES-256-GCM (recommended) or ChaCha20-Poly1305
  3. Select key method: Generate random key, use password, or provide your own key
  4. Click encrypt - your file is encrypted in your browser using secure 2MB chunks
  5. Download the encrypted .enc file and save your encryption key securely

Text Encryption Process:

  1. Click the Text toggle in the Encrypt tab
  2. Type or paste your message (up to 10,000 characters)
  3. Choose encryption method: Random key, password, or your own key
  4. Click encrypt - your message is encrypted instantly in your browser
  5. Copy the encrypted text and share it securely (e.g., via email, chat)

Decryption Process:

  1. Switch to Decrypt mode and choose File or Text
  2. Select your encrypted file or paste encrypted text
  3. Enter the password or encryption key that was used
  4. Click decrypt - your original data is restored instantly
  5. Download the file or copy the decrypted message

[COMMON USE CASES]

📄 Encrypt PDF Files Online

Securely encrypt confidential PDFs, contracts, and legal documents before sharing via email or cloud storage.

💬 Encrypt Text Messages

Encrypt sensitive text messages, passwords, API keys, and confidential notes before sending via email, chat, or messaging apps.

💼 Password Protect Business Documents

Encrypt Word documents, Excel spreadsheets, and PowerPoint presentations with AES-256-GCM encryption.

🔑 Share Credentials Securely

Encrypt passwords, private keys, and access credentials before sharing with team members or clients through any communication channel.

📸 Secure Photo & Video Encryption

Encrypt personal photos, videos, and media files before uploading to cloud services or sharing with others.

🔐 Archive Sensitive Data

Create encrypted backups of sensitive files, medical records, tax documents, and personal information.

💾 Secure File Sharing

Encrypt files before sharing via email, Dropbox, Google Drive, or any file-sharing service for end-to-end security.

🏥 Healthcare & HIPAA Compliance

Encrypt patient records, medical documents, and healthcare data with military-grade encryption for privacy compliance.

[FREQUENTLY ASKED QUESTIONS]

What encryption algorithms are supported for online file encryption?

We support AES-256-GCM (industry standard, hardware-accelerated) and ChaCha20-Poly1305 (modern alternative, excellent for mobile). Both provide military-grade security for encrypting files online.

Is my file really safe when I encrypt files online? Does it get uploaded?

Absolutely safe! All file encryption happens 100% in your browser using JavaScript and the Web Crypto API. Your files NEVER leave your device. You can verify this by checking the network tab in your browser developer tools.

What happens if I lose my encryption key or password?

Your encrypted data is permanently unrecoverable. This is by design for maximum security - we cannot decrypt your files because we never have access to your encryption keys. Always save your keys securely in a password manager.

Can I encrypt PDF files online with this tool?

Yes! You can encrypt any file type including PDFs, Word documents, Excel spreadsheets, images, videos, and more. The tool works with all file formats.

How secure is PBKDF2?

PBKDF2 with 600,000 iterations (as used here) is highly secure and FIPS-compliant. It's the same standard used by major tech companies for password-based encryption. With a strong password, your data is extremely well protected.

Can I decrypt files encrypted by this tool elsewhere?

Files are encrypted in a custom .enc format that includes metadata. You can decrypt them here, or write your own decryption tool following the format specification (available on our GitHub).

Is there a file size limit for online file encryption?

No hard limit, but very large files (>500MB) may take longer to process and use significant memory. Files are processed in 2MB chunks to handle large files efficiently.

Which is more secure: random key or password for file encryption?

Random keys are more secure but you must save the key. Passwords are easier to remember but can be weaker if not chosen carefully. For maximum security, use a random 256-bit key and store it in a password manager.