Hey Product Hunt community! 👋

I’m Madhav, the developer behind ShunyaLink.

This project started because I wanted a fast, secure URL shortener and digital identity platform tailored for developers. Most existing tools are either bloated or slow down because they hit the database on every single redirect.

Why choose ShunyaLink over Bitly, TinyURL, or Linktree?

vs. Bitly / TinyURL: Those platforms paywall features like detailed analytics, UTM builders, custom aliases, and QR codes. ShunyaLink gives you all of these for free, plus built-in AI Phishing Detection (powered by Gemini) to verify destination link safety.
vs. Linktree: Instead of a generic list of buttons meant for influencers, ShunyaLink is built for developers. It uses a modern Bento-Box layout that automatically live-syncs your LeetCode, Codeforces, CodeChef, AtCoder, and GitHub stats onto your profile page.

Here is exactly what I have built and implemented under the hood:

Zero DB Reads on Redirects: Utilizing Redis Hash caching to store redirect-critical metadata (expiration, passwords). Cache hits bypass PostgreSQL entirely, keeping average redirect latency under 20ms locally.
Write-behind Click Tracking: Redirect clicks buffer asynchronously in Redis and batch-flush to Postgres every 30 seconds, eliminating database write pressure.
AI Security & Automation: Real-time AI phishing detection to block malicious URLs, and auto-categorization of links using Gemini AI.
Production-Ready Infra: A 3-node Spring Boot cluster balanced by Nginx, featuring Lua-based rate limiting on Redis, cache warmup for the top 1000 links, and branded QR code generation.

The project is completely free and 100% open-source. I’d love to get your feedback on the architecture, caching strategy, or the UI!

GitHub: https://github.com/madhavthesiya/shunyalink

Live App: https://shunyalink.madhavv.me