Security Verification

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QuantumNote

Quantum-resistant encrypted messages with server storage

Server Storage • Shareable Links
Selected Files:
One Read
Multiple Read

💡 Note will be destroyed after this many opens OR when the timer expires, whichever comes first.

No Timer
30 Seconds
1 Minute
5 Minutes
10 Minutes
30 Minutes
1 Hour
6 Hours
24 Hours
7 Days

⏰ Timer won't start until someone opens the note for the first time. Useful for time-sensitive information that needs to be available for a set period after it's accessed.

Preparing...

Server Storage with E2E Encryption

  • • AES-256-GCM encryption - quantum-resistant
  • • Stored on server as encrypted files
  • • Server cannot decrypt - keys never leave your browser
  • • Shareable links work across all devices
  • • Automatic cleanup of expired messages

Private Rooms

Persistent, passcode-protected encrypted conversations

Create Private Room

Set a name and passcode for your secure room

Both parties must know this name to find the room.

Share the passcode securely (phone call, in person). Never via the same channel.

30 Seconds
5 Minutes
15 Minutes
1 Hour

Unchecked: every image is resized to 1920px before sending. Keeps the room light on mobile data.

Room Created!

Share the room name and passcode securely with the other person

Room Name:

⚠️ There is no link to share — both users log in and enter the room name + passcode.

🔒 Fingerprint verification is STRONGLY RECOMMENDED

Once both parties are in the room, compare the security fingerprint out-of-band to confirm no interception.

Enter Private Room

Type the room name to check availability

Room found:

Room Settings

⚠️ Danger Zone

Destroying a room is permanent. Any active session will be terminated.

Secure Note Created!

Share this link with your recipient. Works on any device!

🔒 Security Note: This link contains the encryption key. Only share through trusted channels.

Secure Message

Attached Files:
⚠️ This message has been deleted from the server

Note Destroyed

This note has been read and deleted from the server.

Authentication Required

Enter the passphrase to join this encrypted chat

Incorrect passphrase. Please try again.

💬 Contact the person who sent you this link to get the passphrase.

Start Encrypted Chat

End-to-end encrypted, two-way messaging

Require a passphrase to join the chat. More secure, but requires sharing passphrase separately.

💡 The other person must enter this exact passphrase to join. Share it securely (phone call, in person, etc.)

30 Seconds
1 Minute
5 Minutes
15 Minutes
30 Minutes
1 Hour

Chat Session Created!

Share this link to start chatting securely

Authentication Required

⚠️ The recipient must enter this passphrase to join. Share via phone call or in person.

💬 Once connected, compare this code with the other person to ensure you're talking to the right person.

Authentication Disabled

Anyone with the link can join this chat. For sensitive conversations, consider using authentication.

Encrypted Chat

🔐 End-to-end encrypted • Messages auto-delete in 5 min

🔐 Security Fingerprint

Compare this code with the other person (via phone call, in person, etc.) to verify you're talking to the right person.

✅ If codes match → You're securely connected
❌ If codes don't match → Someone may be intercepting

No messages yet. Start the conversation!