✓ No account  ·  No sign-up  ·  Deletes itself

Group chat for the moment —
gone when it's over.

Encrypted in your browser — our servers never see a word.

⚡ Create a Free Room

How It Works

Scan. Join. Chat — no sign-up.

1

Create a room

Give your room a name. A unique link and QR code are generated instantly — no sign-up needed.

2

Others join by scanning

Show the QR code or share the link. Anyone opens it in their phone browser, picks a display name, and is in — no install, no account.

3

Room vanishes on schedule

Free rooms auto-delete after 3 hours. Every message, every name, every byte — purged from our servers automatically.

Security & Privacy

We genuinely cannot read your messages

Not "we won't" — we literally can't. Here's why.

🔐

Encrypted before it leaves your device

Your messages are locked using AES-256 encryption directly in your browser before being transmitted. The encryption key is embedded in the room link and never sent to our servers.

🙈

Our servers are completely blind

We store only scrambled ciphertext. There is no master key, no admin backdoor, no way to decrypt what we hold. Even a full server breach would expose nothing readable.

💥

Automatic self-destruction

When a room expires, every key, message, and metadata entry is permanently purged from our servers. There is no backup, no archive, no recovery.

Your conversations deserve better. Create a free room in 10 seconds.

Create Free Room →

For The Curious

The cryptographic architecture

🔬 Expand: Full Zero-Knowledge Encryption Flow ▼

The room URL hash contains the privateKey — it is never parsed by the server (hashes aren't sent in HTTP requests). All cryptographic operations happen entirely in the browser via the Web Crypto API.

① Browser (Room Creator)
ECDSA P-384
keypair generated locally
↓
privateKey never leaves
→ embedded in URL #hash
↓
publicKey
→ sent to server once
  (JWK, verify-only)
→
② Key Derivation (Client-Side)
HKDF-SHA-384
salt: 16-byte zeros
info: "aes-encryption-layer"
↓
AES-256-GCM key
derived deterministically
from privateKey — never sent
↓
AES-GCM encrypt
plaintext → ciphertext
(messages, display names)
↓
ECDSA P-384 sign
{ rid, uid, ts } claims
→ authToken header
→
③ Server BLIND
publicKey
verify ECDSA signature
↓
stores ciphertext only
opaque blobs in Redis
TTL → auto-purged
↓
returns ciphertext
receiver uses privateKey
from their URL to decrypt

All crypto primitives run in the browser via window.crypto.subtle. The private key never touches a network request — URL fragments are not transmitted by the HTTP protocol.

Use Cases

Perfect for moments that don't need a paper trail

From hackathons to weddings — any crowd, any occasion.

🎤

Conferences & Workshops

Spin up a room for your session attendees in seconds. Collect feedback, share links, coordinate — then it all vanishes when you're done.

💍

Weddings & Gatherings

A shared space for your guests to coordinate on the day without adding strangers to a family group chat forever.

🤝

Strangers Who Need to Connect

Hackathons, meetups, pop-up events. Get a group talking without anyone exchanging phone numbers or personal accounts.

WhatsApp / Telegram group

  • Everyone must share their phone number
  • Chat history lives on forever (and on Meta's servers)
  • You're all still connected long after the event
  • Strangers can save your number
vs

TempChat

  • Share a link — no number, no account, no app
  • Messages encrypted in your browser, deleted when room expires
  • Everyone disconnects automatically when it's over

Share a link. Everyone's in. No one's left connected after. Try it free →

Try it free →

Pricing

Start free. Boost when you need more time.

Boosts are one-time, per-room payments that stack additively — extend a room mid-session without penalty.

Free Plus Boost Pro Boost BEST VALUE
Participants 5 total 10 total 50 total
Room lifetime 3 hours +24 hours +7 days
Price $0 $5 one-time $10 one-time
Start free — no account needed →

FAQ

Common questions

Is the encryption real, or just marketing?▼
Real. Messages are encrypted with AES-256-GCM directly in your browser using the Web Crypto API before they're sent anywhere. The encryption key lives only in the room URL hash — it's never transmitted to our servers. We store opaque ciphertext blobs. A full breach of our servers would expose nothing readable.
What happens when the room expires?▼
Every key, message, display name, and metadata entry is permanently purged from our servers via TTL-based expiry. There is no backup, no archive, no recovery path — by design.
Can I extend a room that's already running?▼
Yes. You can apply a Plus ($5) or Pro ($10) boost at any time — even mid-conversation. Boosts extend the expiry from the current deadline, not from now, so you never lose time you already paid for.
How many people can join for free?▼
Up to 5 participants on the free tier. A Plus Boost raises the limit to 10; a Pro Boost raises it to 50. Boosts stack additively if you need even more capacity.
Do people need to install an app?▼
No. TempChat is a browser-only PWA. Anyone with a modern mobile or desktop browser can join by opening the link — no App Store, no Play Store, no downloads.
Why not just use a WhatsApp group?▼
WhatsApp requires every participant to share their real phone number, and chat history persists on Meta's servers indefinitely. TempChat requires nothing — join with a link, pick a display name, done. When the room expires, every trace is gone and nobody is left connected to strangers.