Hemmelig.app is a zero-knowledge secret sharing tool that lets individuals and teams securely share sensitive information like passwords and API keys via client-side encrypted, self-destructing messages.

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🚀 Overview

Hemmelig solves the problem of sharing sensitive data insecurely through emails, chat apps, or logs by providing client-side AES-256-GCM encryption where the server never sees plaintext secrets. Messages self-destruct after being read, with configurable expiration, view limits, and protections like passwords or IP restrictions.

It's built for developers, DevOps engineers, teams, and privacy-focused users who need a simple way to exchange credentials, configs, or private notes temporarily and securely. Self-hosting via Docker makes it enterprise-ready and GDPR-compliant.

The project was created to keep sensitive information out of insecure channels, offering CLI tools for automation, webhooks, and API for integration into workflows.

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✨ Key Features

• Client-side AES-256-GCM encryption ensuring zero-knowledge privacy (server can't access secrets)
• Self-destructing secrets with expiration timers, max views, and burn-after-read options
• Password protection, IP restrictions, and rich text editor for formatted messages
• File uploads for authenticated users, QR code generation, multi-language support
• Optional: CLI for terminal sharing, webhooks for notifications, API and SDK generation

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🛠 Tech Stack

• Frontend: Vite, TypeScript, Tailwind CSS
• Backend: Node.js, TypeScript, Prisma ORM
• Database: SQLite
• Auth: Better Auth
• Hosting: Docker, Docker Compose, Helm (Kubernetes)

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👥 Who Is This For?

This project is useful for:

• Developers who want to share API keys, passwords, or configs without exposing them in chats
• Teams looking for self-hosted, secure secret sharing in CI/CD or collaboration
• Indie makers building tools that require temporary credential exchange

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📸 Screenshots / Demo

• Live demo: https://hemmelig.app
• GitHub: https://github.com/HemmeligOrg/Hemmelig.app

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🔥 Project Status

• 🟢 Actively building

Last updated: 2026-03-24

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❓ FAQ

Is this project free?

Yes / Open Source (Free to self-host; hosted demo at hemmelig.app is free to use under O'Saasy License.)

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Is the source code available?

Yes — https://github.com/HemmeligOrg/Hemmelig.app

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Can I contribute?

Yes, submit issues or PRs on GitHub. Development setup: clone repo, npm install, npm run dev. Supports Hacktoberfest; see docs for Docker, CLI, etc.

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📬 Contact & Links

• Website: https://hemmelig.app
• GitHub: https://github.com/HemmeligOrg/Hemmelig.app
• Twitter/X: https://x.com/iamdothash
• Email: Contact via GitHub issues (no public email listed)

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