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Software · Internet & communication

nyx-chat

Zero-Knowledge E2EE Post-Quantum Messenger. Anonymous architecture, no PII, powered by Signal Protocol SPQR & WebAssembly.

  • Completely free
  • the web
  • Open source
  • No account

Overview

nyx-chat is a messaging program, available on the web.

Features described in its GitHub repository: end-to-end encryption.

Overview written by LicitPro from the documentation published by the authors and the cited sources; we have not tried the resource ourselves.

Excerpts that establish this information
  • “Zero-Knowledge E2EE Post-Quantum Messenger.” — GitHub, 10 November 2026
  • “Zero-Knowledge Post-Quantum Hardened Messenger” — GitHub, 10 November 2026

At a glance

All of nyx-chat is free: no feature is locked behind a paid plan, and its code is open.

Its licence (AGPL-3.0) is a copyleft open source licence: you may use, study, modify and redistribute it, including commercially; modified versions must keep the same licence.

Strengths

  • Open source code
  • No account needed
  • Commercial use allowed

Sources and checks

  • Facts collected from GitHub (credit card, account, source code, publisher, licence, free status, platforms, commercial use) —
  • Last technical check: 10 November 2026
  • Description from github.com — Dépôt GitHub h4nzs/nyx-chat (AGPL-3.0-only)

How listings are built →

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