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Privex
CompletedNode.jsExpress.jsMongoDB+5 more

Privex

Privex lets users share sensitive data safely with AES-256 encryption, self-destructing/view-once links, and auto-expiry using MongoDB TTL. Built with React, Node.js, Express, and MongoDB, it’s designed with strong security and clean APIs.

Timeline

7 Days

Role

Full Stack

Team

Solo

Status
Completed

Technology Stack

Node.js
Express.js
MongoDB
React.js
Tailwind CSS
crypto
Bcrypt.js
Zustand

Key Challenges

  • Implementing AES-256 encryption & view-once logic
  • Managing auto-expiry with MongoDB TTL
  • Securing APIs with Helmet, CORS, validation

Key Learnings

  • Hands-on with encryption & secure storage
  • Using MongoDB TTL for automation
  • Handing query-based links
  • Frontend & Backend integration

Privex: Secure platform for sharing secrets via self-destructing links.

Overview

Privex is a privacy-focused backend service that enables users to share sensitive information through self-destructing links. Designed with security and simplicity in mind, it ensures secrets are encrypted, expire automatically, and can be restricted to "view once" access for maximum confidentiality.

What Users Can Do

  • Create Secrets: Share sensitive information securely with AES-256 encryption.
  • Generate Self-Destructing Links: Share secrets that expire after a set time or a single view.
  • View Secrets Once: Access confidential information safely through one-time links.
  • Automatic Expiry: Secrets are deleted automatically using MongoDB TTL indexing.

Why I Built This

I built Privex to solve common challenges when sharing sensitive data online:

  • Traditional messaging or email is not secure for confidential information.
  • Implementing encryption, auto-expiry, and “view-once” logic is often complex.
  • Needed a production-ready backend for secure secret sharing.
  • To practice building full-stack applications with encryption, secure APIs, and modular architecture.
  • To learn frontend-backend integration for generating and accessing query-based links.

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