Secret Gate icon
Secret Gate icon

Secret Gate

SecretGate is an open-source, privacy-focused ephemeral messaging platform designed to eliminate server-side trust and raw data exposure.

Inbox protocol setup screen to generate a unique private link without registration.
Dashboard for managing secret links, social sharing, recovery codes, and auto-delete settings.
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Anonymous messaging interface featuring client-side encryption and bot protection.

Cost / License

Platforms

  • Online
  • Self-Hosted  Requires PHP 8+, Apache HTTP Server, UFW, and a POSIX shell environment.
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Features

Properties

  1.  Privacy focused

Features

  1.  Self Destructing Messages
  2.  Encrypted Chat
  3.  Zero Knowledge

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AlternativeTo Categories

Social & Communications, Security & Privacy

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Secret Gate was added to AlternativeTo by Sasiru-Mindaka on and this page was last updated .
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What is Secret Gate?

SecretGate is an open-source, privacy-focused ephemeral messaging platform designed to eliminate server-side trust and raw data exposure.

Key Architecture & Features: -> Zero-Knowledge Encryption: Payloads are encrypted and decrypted entirely within the browser using the W3C Web Crypto API (AES-256-GCM). Decryption keys and unencrypted text are never sent to or stored on the origin server. -> Hardened Infrastructure Blueprint: Designed for stealth execution where origin web server processes (Apache) bind strictly to loopback (127.0.0.1), direct public IP scans are dropped at the OS firewall level (UFW), and ingress is routed solely through Cloudflare Zero Trust Tunnels. -> Zero External Dependencies: Built with pure native PHP 8+, JavaScript, HTML, and CSS—eliminating NPM/Composer supply-chain vulnerabilities. -> Lightweight & Self-Hostable: Ideal for privacy advocates and Linux sysadmins looking for a secure, low-footprint reference architecture.