Hollow — Encrypted Messaging

Hollow // Alpha

Real ECDH + AES-GCM, relayed over WebSocket — no plaintext ever leaves this tab.

Connecting…

Communities aren't end-to-end encrypted

Everything here — messages, names, membership — passes through the relay server in a form it can read. That's different from your 1:1 chats, groups, and calls, which the server can never read. Only post what you're fine with the server operator seeing.

⚠ Save This Now — It's Very Important

Write down or copy these 24 words before you do anything else. If you lose them and log out, your identity is gone for good — no password reset, no support team, nobody who can get it back for you. Not even us.

These words ARE your identity — anyone who has them can read your messages and impersonate you. Never share them, never send them over this or any chat.

Settings

Your ID

Display Name (optional — shown to people you chat with, not verified)

These 24 words ARE your identity — anyone who has them can read your messages and impersonate you. Never share them, never send them over this or any chat.

PIN Lock

Encrypts your identity as stored on this device

Notification sounds

Plays for new messages and incoming calls

Auto-lock after inactivity

Logs you out automatically when idle

Theme

Accent color used throughout the app

Blocked

Block someone from an open chat — this is just the list.

Delete this identity?

This permanently removes your identity, friends list, and blocked list from this device. If you still have your seed phrase, you can restore this same identity later — but everything stored here, on this device, will be gone for good.

⚠ You're about to leave Hollow

This link goes to an external site Hollow has no control over — only open it if you trust the link and whoever sent it.

Set a PIN

This encrypts your identity as it's stored on this device. Forget it and this stored copy is unrecoverable — but your seed phrase still works to log back in from scratch, PIN or no PIN.

Generate a brand-new cryptographic identity. No email or phone number, ever.

Restore an existing identity using its 24-word seed phrase.

We will never ask for your information.

This identity is PIN-locked on this device.

Friend Requests

Friends

Pick people from your friends, or paste extra Hollow IDs below. Up to 20 people total, including you.

0 / 19 selected

Groups

Communities are open to anyone and are not end-to-end encrypted — this relay server can read what's posted here, unlike your 1:1 chats and groups.

My Communities not encrypted

Conversations

Talking to community

Not end-to-end encrypted — visible to the relay server

Talking to group

Talking to nobody yet

Identity lives only in this tab's session storage. Open a new tab for a second identity, or log in again with its seed phrase.