Communicate Freely. Without Internet.
Exchange messages and files without Internet. Discover nearby devices or join a local network. Relays can carry messages when a direct path is unavailable.
100% Offline
Peer-to-Peer Direct
E2E Encryption
NoNetChat for the Web
Chat without installation, from your browser.
A browser joins a native app. For a local address, open the web app from the local HTTP server.
Instant Access
A browser joins a native app. For a local address, open the web app from the local HTTP server.
Cross-Platform
Works on any device with a modern browser, including desktops (Windows, macOS, Linux) and mobiles (iOS, Android) thanks to our installable PWA.
Preserved Security
Messages are encrypted after mutual consent. You can then verify the device by comparing a code in person.
Features
Exchange messages and files without Internet. Discover nearby devices or join a local network. Relays can carry messages when a direct path is unavailable.
Private Offline Messaging
Nearby people appear automatically over Bluetooth. Local Wi-Fi speeds up transfers. No Internet needed.
File Sending
This file exceeds the Bluetooth limit. Connect to the same local Wi-Fi or use Android Nearby, then try again.
Voice Messages
Record and send voice messages for more natural and expressive communication.
No Central Server
100% decentralized operation. No intermediary server, no dependency on third-party services.
End-to-End Encryption
Private conversations and groups are end-to-end encrypted. Only their participants can read the content.
Automatic Connection
Unverified contacts can recognize you for 24 hours after your last outgoing message. Incoming messages do not renew this period. Verified contacts remain recognizable until you revoke permission.
Intelligent Filtering
Filter by status (online, nearby, offline) for optimal management of your contacts.
A good place to connect
A little kindness goes a long way. You can decline a conversation, hide content or block someone at any time.
Why Choose Offline Messaging?
- Maximum confidentiality: No data transiting over the Internet
- Universal operation: Even in a dead zone or without a data plan
- Savings: Zero consumption of mobile data
- Local speed: Direct transfers between devices
Built with Robust Technologies
NoNetChat relies on reliable open-source tools to guarantee performance, security and transparency.
Flutter
A shared interface for phones, tablets and computers.
BLE mesh / LAN
Nearby people appear automatically over Bluetooth. Local Wi-Fi speeds up transfers. No Internet needed.
SQLite
History stays on your device. It is not yet encrypted at rest: protect access to your device.
ChaCha20-Poly1305
Private messages are encrypted between participants. Mesh relays cannot read their contents.
Riverpod / GetIt
Separate services and explicit dependencies make the application easier to maintain and test.
Internationalization
Multilingual support thanks to the .arb file format and flutter_localizations.
Security & Confidentiality
Private conversations and groups are end-to-end encrypted. Only their participants can read the content.
Local Storage Only
History stays on your device. It is not yet encrypted at rest: protect access to your device.
A good place to connect
A little kindness goes a long way. You can decline a conversation, hide content or block someone at any time.
End-to-End Encryption
Private messages are encrypted between participants. Mesh relays cannot read their contents.
Privacy Policy Summary
Private conversations and groups are end-to-end encrypted. Only their participants can read the content.
Unverified contacts can recognize you for 24 hours after your last outgoing message. Incoming messages do not renew this period. Verified contacts remain recognizable until you revoke permission.
“Around me” is a public space. People who receive your posts can read them, so keep personal information in private conversations.
End-to-End Encryption
Private conversations and groups are end-to-end encrypted. Only their participants can read the content.
Permissions Requested & Their Use
Location
Necessary for the discovery of nearby Bluetooth and Wi-Fi Direct devices (required by Android).
Bluetooth
Essential for scanning, advertising and connecting to other NoNetChat devices.
Nearby Devices
Allows the use of Wi-Fi Direct for faster connections and large file transfers.
Notifications
Optional, to alert you of new messages or connection requests when the application is in the background.
Microphone
Optional, to record and send voice messages to your contacts.
Interface Overview
Discover the elegant and intuitive interface of NoNetChat, designed for an optimal user experience
Frequently Asked Questions
Everything you need to know about NoNetChat, the offline messaging that revolutionizes mobile communication
Do I need an internet connection to use NoNetChat?
Nearby people appear automatically over Bluetooth. Local Wi-Fi speeds up transfers. No Internet needed.
Is device verification required?
Mutual consent is enough to start a conversation. Optionally, compare a code in person to verify the device. Accepting a chat alone does not verify it.
Can I send large files?
This mode supports files up to 32 MB.
What is the communication range?
Range depends on devices, obstacles and radio conditions. Relays can extend coverage, but no range is guaranteed.
Is my data really secure?
Messages are encrypted during transmission. History is stored on this device; protect access to it.
Does the application work in the background?
Background activity depends on the operating system, permissions and battery limits. Continuous presence is not guaranteed.
How many devices can communicate simultaneously?
Private conversations are available. Groups are planned. Mesh capacity depends on nearby devices and radio conditions.
Where can I get the application?
Android, Linux, Windows and Web access are listed on this page. Native iOS and macOS validation and distribution remain to be completed.
Can't find your answer?
Our community of users and our development team are here to help you. Do not hesitate to contact us for any additional questions.
Ready to RevolutionizeYour Communication?
Join a growing community of users who have already adopted NoNetChat for truly free and secure messaging. Download now and discover communication without Internet!
🚀 Try now! No registration required, no personal data collected.
Compatible with Android 6.0+ • Automatic update • Community support