Building a Privacy-First AI Hair Simulator: Lessons Learned

Have you ever wanted to try out a new hairstyle or hair color without the commitment—or the hassle of bloated, privacy-invasive apps? I recently launched AI Hair Try-On , a browser-based tool that lets you preview new looks instantly. Today, I want to share the journey of building it, the technical choices I made, and why "privacy-first" was the core of this project. The Motivation Most "virtual makeover" apps share a few frustrating traits: Bloated & Slow: They are packed with unnecessary UI and take forever to load. Aggressive Sign-ups: They force you to create an account just to see the core value. Privacy Concerns: They upload your photos to their servers, where they are often stored or used for training. I wanted to build something that felt like a utility—fast, transparent, and respectful of your data. The Privacy-First Approach The most critical decision I made was to keep the processing client-side whenever possible . Memory-only: Photos uploaded by free users are processed ent