Secure File Transfer

Encrypt files in your browser with a password, then email a protected download link. Free, no sign-up.

End-to-End Encrypted 24-Hour Expiry No Registration AES-256-CBC
Browser-Only: Client-side encryption
Zero-Knowledge: Server never sees files
Up to 500MB: Large file support
Auto-Delete: Removed after 24 hours
Send Encrypted File

Passwords are never emailed. Share them separately for zero-trust security.

We only send the download link to this email.
Choose a strong password (or generate one) and share it separately via secure channel.
Max size: 500 MB. Selected: none
Download Link

Encrypt and send a file to get a download link

How It Works
  1. Enter details: Recipient email and a strong password
  2. Select file: Choose the file to encrypt (up to 500 MB)
  3. Encrypt locally: File encrypted in your browser with AES-256-CBC
  4. Upload securely: Encrypted file uploaded to secure storage
  5. Share password: Send password separately via secure channel
Security Features
  • AES-256-CBC: Military-grade encryption standard
  • PBKDF2 Key Derivation: 10,000 iterations for security
  • Zero-Knowledge: Server never sees plaintext or passwords
  • 24-Hour Auto-Delete: Files removed automatically
  • Multiple Downloads: Access anytime within 24 hours
  • No Registration: Completely anonymous
Common Use Cases
  • Confidential Documents: Share contracts, legal documents, or NDAs securely
  • Sensitive Files: Tax returns, medical records, or personal identification
  • Business Data: Financial reports, proprietary code, or client data
  • Large Attachments: Videos, high-res images, or design files (up to 500MB)
  • Team Collaboration: Share project files with team members securely
  • Client Deliverables: Send completed work to clients with encryption
About the Developer

Anish Nath – Security Engineer & Cryptography Specialist @anish2good

Extensive experience in cryptography, web security, and file encryption systems. Creator of 8gwifi.org, providing free online security tools used by developers and security professionals worldwide.

Cryptography Web Security AES Encryption Zero-Knowledge Systems File Encryption

8gwifi.org

Free Security Tools Since 2010

Standard Encryption: Uses Web Crypto API

Proven Track Record: Serving professionals since 2010

Trusted Worldwide: Used by security teams globally

Support This Free Tool

Every coffee helps keep the servers running. Every book sale funds the next tool I'm dreaming up. You're not just supporting a site — you're helping me build what developers actually need.

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Privacy Guarantee: Private keys you enter or generate are never stored on our servers. All tools are served over HTTPS.
Quick Access

How It Works

1Upload file: Select a file to encrypt client‑side in your browser.
2Set password: Choose a strong password; we encrypt locally before transfer.
3Share link: Send the protected download link to the recipient. Share the password via a separate channel.

FAQs

Are files stored on the server?
Encryption occurs in your browser; we do not permanently store your files. Use the link promptly and avoid sharing sensitive data over insecure channels.
How should I share the password?
Share the password separately (e.g., messaging app) and avoid including it in the same email as the link.
Any file size limits?
Browser‑based encryption works best with moderate file sizes. For very large files, compress or split before encrypting.