At Cloak, we care about your privacy, not your data.

Cloak is a new kind of chat platform that puts you in control of your data and keeps your conversations safe.

Closed Beta

Download Cloak Chat

Cloak is currently in closed beta. To create an account, you will need an invite code. If you don't have one yet, join our waitlist to be notified when spots open up.

Feature rich, privacy focused

Every last message, secured by design

Cloak offers a range of familiar features with security and privacy built in from the start.

Secure Messaging: Your conversations are protected by end-to-end encryption, with encryption keys that remain exclusively on your device – ensuring your privacy is never compromised, even by our servers.
Password Secured Rooms: Lock down rooms even further by requiring a password to join. Never worry about messages getting into the wrong hands.
File Sharing: Share and manage files seamlessly and securely. Ensure your shared documents are protected with our vault storage system.
Create and Join Rooms: Effortlessly create and join chat rooms for group conversations, ensuring organized and seamless communication.

Security deep dive

How Cloak protects your data

Cloak doesn't just promise privacy — we engineer it into every layer. From the cryptographic protocols to local key storage, here is exactly how your data stays yours.

End-to-end encrypted, always

Every message, every call, every file — encrypted on your device before it ever touches the network. The server stores only ciphertext. No backdoors, no exceptions.

Signal ProtocolAES-256-GCMCurve25519Forward SecrecyZero Knowledge

Signal Protocol

Trusted by millions, built into Cloak

Cloak uses the Signal Protocol, the same end-to-end encryption standard trusted by Signal, for secure key exchange between users. Curve25519 key pairs and the Double Ratchet Algorithm ensure that every session produces unique encryption keys — even if one key is compromised, past and future messages remain protected through forward secrecy.

AES-256-GCM Message Encryption

Military-grade cipher, per-message randomness

Every message is encrypted client-side with AES-256-GCM — an authenticated encryption standard used by governments and financial institutions worldwide. Each message gets a unique, cryptographically random initialization vector (IV), so identical messages produce completely different ciphertext. The authentication tag ensures messages cannot be tampered with in transit.

Zero-Knowledge Architecture

We can't read your messages — by design

All encryption and decryption happens entirely on your device. The server only ever sees encrypted blobs — never plaintext. Even Cloak's own infrastructure cannot access your messages, files, or call content. Your data is yours alone.

Per-Conversation Keys

Unique keys for every DM and every room

Each direct message conversation and each server room uses its own unique encryption key derived from Curve25519 key pairs. Room owners can cycle encryption keys at any time, instantly revoking access for removed members and generating fresh keys for the room.

Secret Key Recovery

You hold the master key, not us

At account creation, Cloak generates a 64-character cryptographically random secret key that only you possess. This key encrypts your identity keys with AES-256-GCM before they are backed up to the server. Without your secret key, your identity and message history cannot be recovered — not even by Cloak.

Encrypted Voice & Video

End-to-end encrypted calls, frame by frame

Voice and video calls are protected with end-to-end encryption using the WebRTC Insertable Streams API. Every audio and video frame is encrypted before it leaves your device, ensuring that call content is only accessible to participants — not the server, not intermediaries, not anyone else.

Technical specifications

The cryptographic primitives and transport protocols powering Cloak's security.

Key Exchange: Signal Protocol (Curve25519, Double Ratchet)
Message Cipher: AES-256-GCM with per-message random IV
Key Storage: OS Keychain (macOS Keychain / Windows DPAPI)
Transport: HTTP/3 WebTransport over TLS 1.3
Media Encryption: WebRTC Insertable Streams (E2EE)
Identity Backup: AES-256-GCM encrypted with user-held secret key

Open architecture — no proprietary black boxes

Cloak is built on industry-standard, peer-reviewed cryptographic protocols. We don't invent our own crypto — we use the same proven primitives trusted by security researchers, governments, and billions of users worldwide. Your data is protected by math, not promises.

Wait, you can do that?

No compromises, just features

Smile, you're on camera

Video Chat & Screen Sharing

Engage in high-quality video calls. Connect face-to-face while keeping your conversations private, and share your screen securely during video calls.

Need to disappear?

Expiring Messages

Set a message to expire after a set amount of time. This is perfect for sharing sensitive information without leaving a trace.

Say more with less

Message Reactions

Enhance your conversations by reacting to messages with a variety of emojis, adding a personal touch to your chats.

Role based permissions

Roles & Groups

Create roles and groups to manage permissions and access levels for members of your rooms.

Cloak Chat is in active development

Join the waitlist and be the first to know when Cloak Chat launches

🔐 We want to live in a world where mega corporations don't have access to all of our data.

We believe that everyone deserves the right to communicate freely without the fear of their personal information being compromised or exploited. With Cloak, users can chat, share files, and express themselves without compromising their privacy, fostering a trusted and secure digital environment for meaningful connections to flourish.

Pricing

Privacy to meet any budget

We built Cloak from the ground up with your privacy at its core. Through local encryption keys, your conversations remain secure and accessible only to you and those you choose to communicate with. We will never sell or monetize your data. Cloak operates as a premium service dedicated to protecting your privacy.

Free

Test the waters with Cloak for free! The free plan still has all of the privacy and security you expect, with limited features.

$0/month

End to end encryption
Join 1 limited room*
Unlimited Direct messaging
Attachments up to 10MB
1GB of storage
Voice calls
Direct messages persist for 1 day
Messages up to 2000 characters

Join the waitlist

Basic

Pro

Our pro tier offers all the security and privacy you expect from Cloak — packed with everything Cloak has to offer.

$14.99/month

End to end encryption
Join 200 rooms
Unlimited Direct messaging
Set how long direct messages persist
Attachments up to 250MB
50GB of storage
Voice calls
Video calls
Screen sharing up to 60fps
Send longer messages up to 5000 characters

Join the waitlist

*Limited rooms allow for 1 text channel and 1 voice channel, and can have up to 10 users

Tier features and pricing are not final and subject to change

Frequently asked questions

Have questions? We're here to help. If you can't find what you're looking for, reach out to our support team.

- What is Cloak?
  Cloak is a privacy-first messaging platform that puts you in complete control of your data. We offer secure messaging, expiring messages, file sharing, video calls, and voice chat - all with uncompromising privacy and security.
- How does Cloak protect my privacy?
  Every message in Cloak is encrypted. The encrypted data is stored on our servers as hashes that can only be decrypted with keys stored on your device. This means even we cannot access your conversations - only you and your intended recipients can.
- What platforms is Cloak available on?
  At launch, Cloak will be available on Windows, Mac, and Linux. Mobile apps for iOS and Android will be released shortly after the initial launch.
- How do group chats and rooms work?
  Rooms and group chats use the same end-to-end encryption as direct messages. Only members of the group or room can decrypt and read the messages. Free users can join 1 limited room (up to 10 users, 1 text channel, 1 voice channel), while paid tiers can join up to 100-200 rooms with expanded features.
- What are the limitations for voice and video features?
  Voice channels can support many simultaneous speakers - there is no strict limit on voice participants. For video features, voice channels can have up to 10 viewers watching streams at once, with a maximum of 9 simultaneous video streams or webcams per room. Premium rooms can be upgraded to increase these video limits. Screen sharing is available on paid tiers, with Pro users getting enhanced 60fps streaming.
- How much does Cloak cost?
  Cloak offers three tiers: A free plan with core privacy features and basic functionality, a Basic plan at $9.99/month with expanded storage and features, and a Pro plan at $14.99/month with maximum storage and premium features. All plans maintain the same high security standards.
- What storage limits and file sharing options are available?
  Free users get 1GB storage and can share files up to 10MB. Basic users get 15GB storage with 150MB file uploads, and Pro users enjoy 50GB storage with 250MB file uploads. Cloak offers two sharing methods: a secure vault for sensitive files with end-to-end encryption, and a standard sharing option for common media like memes and videos that are served via CDN for faster access. All transfers remain secure regardless of sharing method.
- How long are messages stored?
  For free users, direct messages persist for 1 day. Paid users can customize how long their messages persist. All messages, regardless of plan, are stored as encrypted hashes that can only be decrypted on authorized devices.
- How do I get started with Cloak?
  Join our waitlist to be notified when Cloak launches. You can start with our free tier to test the platform, then upgrade to Basic or Pro for additional features while maintaining the same high level of privacy and security.