Enclosed

Enclosed is a minimalistic web application for sending private notes and file attachments using end-to-end encryption. Notes are encrypted in the browser so the server stores only ciphertext and cannot read the content.

Key Features

• Client-side end-to-end encryption with AES-GCM and keys derived via PBKDF2
• Zero-knowledge storage: server only receives encrypted payloads plus limited metadata
• Optional password protection in addition to the secure link key
• Expiration (TTL) and delete-after-reading (self-destruct) options
• Secure file attachments alongside notes
• Optional email/password authentication for creating notes
• Responsive minimal UI with dark mode and internationalization
• CLI for creating and viewing notes from the terminal

Use Cases

• Securely share credentials, recovery codes, or sensitive snippets with expiring links
• Send confidential one-time notes to teammates or clients
• Share private files quickly without giving the server access to contents

Limitations and Considerations

• Losing the note link (and password, if set) makes the content unrecoverable by design
• The service stores metadata such as TTL and whether a note is password-protected

Enclosed is well-suited for teams or individuals who need quick, secure, ephemeral sharing with a simple interface. Its zero-knowledge design and optional self-destruct controls help reduce exposure when exchanging sensitive information.