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Send messages,
not metadata

The decentralized encrypted messaging app with wallet-based chat. No phone number, no email, no servers — just your keys and private Web3 messaging.

Send
Group
QR Code
From
alice.eth
Connected via MetaMask ● Online
To
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Message
AES-256-GCM
Interactive demo — try it out
Recent Contacts View all
VB
vitalik.eth
0x1d4e...5f8a
Online
AS
alice.sol
0x8f2a...9c3b
Online
DC
DeFi Devs
12 members
Group
SN
satoshi.btc
0x3e7d...1a6f
New
0
Active Wallets
0
Messages Encrypted
0
Data Breaches
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Networks

Built for privacy — the Web3 messaging platform

End-to-End Encrypted Chat
AES-256-GCM encryption with forward secrecy. A truly private encrypted chat app — messages are unreadable by everyone, including us.
Wallet-Based Identity
No phone numbers, no emails. Your crypto wallet is your identity — self-sovereign and anonymous. Send messages without a phone number.
Fully Decentralized Messenger
No central servers. This peer-to-peer encrypted chat relays messages through the Waku protocol with zero single points of failure.
QR Code Sharing
Share your profile instantly with a scannable QR code. Others scan and start chatting in seconds.
Encrypted Group Chat
Create private group chats for your DAO or Web3 team. Every message is end-to-end encrypted across all members of your blockchain messenger.
Audited & Verified
Full security audit with formal verification. Zero critical vulnerabilities. Open source protocol.

Frequently Asked Questions

What is a decentralized encrypted messaging app?

A decentralized encrypted messaging app like SendBloc routes messages through a peer-to-peer network instead of central servers. Combined with end-to-end encryption, this means no company, government, or hacker can read your messages or collect your metadata.

How does wallet-based chat work without a phone number?

Instead of verifying your identity with a phone number or email, SendBloc uses your crypto wallet address as your identity. You generate a key pair locally on your device — your public key is your address, your private key proves ownership. No signup form, no phone verification required.

Is SendBloc a private messaging app without phone number verification?

Yes. SendBloc is built entirely on wallet-based identity, so you never need a phone number, email, or any personal information to start messaging. It's a truly anonymous messaging app for anyone who values privacy.

How does SendBloc compare to Signal or Telegram?

While Signal and Telegram offer encryption, both require phone numbers, which link your conversations to your real identity. SendBloc is a decentralized messenger that uses wallet-based chat — no phone number, no central servers, and no metadata collection.

What encryption does this Web3 messaging app use?

SendBloc uses AES-256-GCM encryption with keys derived from your wallet's cryptographic key pair. Messages are relayed through the decentralized Waku protocol — no central server ever sees your content, contacts, or metadata.

Can I use SendBloc as a blockchain messenger for my DAO?

Absolutely. SendBloc supports encrypted group chats perfect for DAOs, Web3 teams, and crypto communities. Every message is end-to-end encrypted and routed through decentralized infrastructure — ideal for sensitive governance discussions.