A private place,
when you need one.
NyChat is a room-based communication platform. Create temporary rooms with client-side encrypted text, voice notes, media sharing, and WebRTC voice and video calls — no account required.
To join an existing encrypted room, paste the complete invite containing the key.
Clear answers to essential product questions.
Everything you need to know about NyChat's temporary room model, account-free access, and encryption architecture.
What is NyChat?
NyChat is a web-based communication platform for creating temporary real-time rooms. Users connect without creating a persistent account, and rooms are removed when all participants leave.
It supports client-side AES-256-GCM encrypted text, image and file sharing with temporary capability tokens, and WebRTC voice and video calls.
How do temporary rooms work?
A temporary room is created instantly with a shareable URL. The room identifier is known to the server for routing, while the decryption key stays in the URL fragment (#) on user devices.
Anyone with the complete invite link can join, pick a temporary display name, and converse in real time over secure WebSockets without registration.
Do I need an account or email to use NyChat?
No. NyChat requires no account creation, sign-in, email address, phone number, or password.
Sessions exist only during active communication and rely on temporary in-browser tokens for reconnection rather than cloud profiles.
How does NyChat protect message content?
Text messages are encrypted in your browser with AES-256-GCM before transport. The relay server only sees ciphertext and cannot read message plaintext.
Media uploads are access-controlled via short-lived capability tokens, and calls flow directly peer-to-peer over WebRTC.
Instant connection. Intentional design.
NyChat removes friction without compromising security. Create a dedicated room in seconds and share access securely.
Create a room
Generate a dedicated temporary room with a single click. No account registration, email, or password required.
Share the secure invite
Send the complete invite link. The decryption key lives in the URL fragment (#) and is never transmitted to our server.
Connect and converse
Exchange client-side encrypted messages, share media, or talk via WebRTC. When the room expires, all room data is destroyed.
The anatomy of a secure invite link.
NyChat separates routing from decryption. Our relay server coordinates connections using only the Room Code, while your browser holds the private decryption key locally.
1. Room Code (Server-known identifier)
Identifies the room instance on the server for signaling, presence, and ciphertext routing. It cannot decrypt conversations alone.
2. Fragment Key (Client-only secret)
The local AES-256-GCM symmetric key living after the # fragment. RFC standards ensure browsers never transmit URL fragments in HTTP requests.
Inside an active NyChat room.
A focused environment designed specifically for temporary communication, collaboration, and calls.
Peer • 10:42 AM
Can you review the architecture doc before we close the room?
Reviewed. AES-256-GCM symmetric client-side encryption is verified.
What ships in the product today.
All features listed below are active and operational in the live service — no speculative roadmap claims.
Client-side Encrypted Text
Messages are encrypted directly in the browser via AES-256-GCM before transport. The server only relays ciphertext.
Threaded Replies
Organize fast-moving conversations with contextual inline replies.
Live Reactions & Polls
Express sentiment and gather quick consensus with transient in-room voting and reactions.
Voice Notes
Record, pause, preview, and cancel audio notes directly in the browser. Transmitted via session-bound protected media access.
Documents & Images
Share files and photos with capability tokens tied strictly to active room sessions; deleted when the room ends.
Voice Calling
Multi-peer mesh audio for up to 8 participants via WebRTC with direct browser-to-browser media streaming.
Video Calling
Browser-native video mesh for up to 4 participants with local self-view mirroring and camera/mic toggles.
Honest security boundaries.
We clearly state what our architecture protects and transparently document what we do not promise. Privacy is architecture, not a slogan.
What NyChat Protects
Client-side Encrypted Text
Text messages are encrypted in your browser with AES-256-GCM before transport. The server only relays ciphertext and cannot read message content.
Fragment-based Key Isolation
The encryption key resides in the URL hash fragment (#). Browsers never send fragments to web servers, keeping keys strictly on participant devices.
Encrypted Live Calls
Voice and video streams use standard WebRTC DTLS-SRTP encryption in transit across participants.
What NyChat Does Not Promise
Compromised Endpoints
If a participant's device has malware, screen recording, or someone takes a physical photo of a screen, cryptography cannot prevent data exposure.
Tor-grade Network Anonymity
NyChat is not an anonymity network like Tor. Standard IP routing occurs for web requests and WebRTC peer connections.
End-to-End Encrypted File Storage
Shared media and attachments are protected by TLS in transit and capability-gated URLs tied to the room session, but are not client-side encrypted at rest.
Rooms exist only while useful.
Unlike permanent social networks and communication suites, NyChat rooms have intentional lifespans that cleanly conclude.
Built for temporary alignment.
Ideal situations where setting up a permanent profile or installing software creates unnecessary overhead.
Temporary Workgroups
Spin up a fast workspace with contractors, clients, or cross-team contributors. Share assets securely, then let the room close when the project completes.
Ad-hoc Group Gatherings
Coordinate meetups, gaming sessions, or events without forcing participants into another permanent social group or app installation.
Confidential Discussions
Have focused conversations where message history does not accumulate in a perpetual cloud database tied to your identity.
Real product limits, stated up front.
Our exact service limits pulled directly from live configuration. No unstated quotas or hidden terms.
- 15
- Room peers
- 8
- Voice call
- 4
- Video call
- 6,000
- Characters
- 3 min
- Voice note
- 10 MB
- Images
- 20 MB
- Files
- 5
- Attachments
- 10
- Poll options
Rooms & Presence
- Room participants
- Max simultaneous peers per room
- 15
- Voice call capacity
- Active WebRTC voice peers
- 8
- Video call capacity
- Active WebRTC video peers
- 4
Messaging & Media
- Text message length
- Per encrypted message payload
- 6,000 chars
- Voice note limit
- Max in-room audio recording
- 3 min
- Image upload cap
- Per image attachment
- 10 MB
- File upload cap
- Per document attachment
- 20 MB
- Max attachments
- Attachments per single message
- 5
Room Features
- Poll options
- Max choices per room poll
- 10
- Custom avatars
- Local display picture buffer
- 2 MB
All limits are strictly enforced by backend services and available inside every active room panel.
Read product detailsNyChat at a glance summary
NyChat at a glance
- Product Type
- Web-based temporary real-time communication platform for group chat, media sharing, and live calling.
- Account Requirement
- Zero account requirement. No registration, email address, phone number, password, or persistent profile needed.
- Room Access & Decryption
- Access is controlled via room links. The room code identifies the space, while the URL fragment (#) carries client-side key material.
- Text Encryption
- Client-side symmetric encryption using AES-256-GCM via native Web Crypto API. The relay server cannot read message plaintext.
- Media & File Security
- Uploads (10 MB images, 20 MB files) are protected by temporary capability tokens scoped to active room peers.
- Data Persistence & Purging
- Temporary in-memory storage. When all participants leave a room, active messaging data and session state are destroyed.
Authoritative constraints: up to 15 participants per room, 8 on voice, 4 on video.
Security Trust Center →Built by Nyxen Studio
NyChat is designed, built, and maintained by Nyxen — an independent product studio that ships focused, privacy-conscious products and takes the long way around the details.
The security model, the room experience, and the honesty on the security page are all Nyxen decisions — made for NyChat and the products that follow it.
- Product & designEvery screen, interaction, and word — built in-house.
- Security modelFail-closed invites and stated boundaries are deliberate choices.
- SupportReal people read what you send from the contact page.
Questions people actually ask.
Clear, direct answers explaining NyChat's room architecture, privacy boundaries, and encryption models.