# zkChat

> Ephemeral end-to-end encrypted chat, file-drop, and one-time messages. No accounts. No metadata. No logs. No identities. Everything burns the moment you leave.

zkChat is a zero-knowledge, privacy-first messaging platform. All encryption happens client-side using AES-256-GCM via the Web Crypto API. The server never sees plaintext — it only relays encrypted blobs. Encryption keys are embedded in URL fragments and never transmitted to the server.

## Core Products

- [Encrypted Chat Rooms](https://www.zkchat.org/chat): Real-time ephemeral group chat with random personas
- [One-Time Messages](https://www.zkchat.org/otm): Self-destructing messages that vanish after reading
- [Encrypted File Drop](https://www.zkchat.org/file): Peer-to-peer encrypted file transfers in-browser

## Key Properties

- End-to-end encrypted (AES-256-GCM)
- Zero-knowledge architecture — server cannot decrypt anything
- No accounts, no phone numbers, no email required
- No metadata logging
- Ephemeral by design — data destroyed when sessions end
- Fully open source (AGPL-3.0)
- Built with Next.js, TypeScript, and Web Crypto API

## Links

- [Homepage](https://www.zkchat.org)
- [Blog](https://www.zkchat.org/blog)
- [Privacy Glossary](https://www.zkchat.org/learn)
- [Use Cases](https://www.zkchat.org/for)
- [Comparisons](https://www.zkchat.org/compare)
- [FAQ / Answers](https://www.zkchat.org/answers)
- [Alternatives](https://www.zkchat.org/alternative-to)
- [Legal / Privacy Policy](https://www.zkchat.org/legal)
- [GitHub (Frontend)](https://github.com/zkChatOrg/frontend)
- [GitHub (Backend)](https://github.com/zkChatOrg/backend)
- [Full LLM Context](https://www.zkchat.org/llms-full.txt)

## Company

zkChat is built by OpenZK LLC, a Wyoming (US) company focused on privacy-first communication tools.