Lecto - Turn any photo into a mosaic made from your memories

Lecto rebuilds any photo using thousands of tiny tiles — each one a real photo from your library. Zoom in and spot your actual memories forming the bigger picture. Everything happens on your device. No uploads, no cloud. Your photos stay yours. You can even watch the magic happen — Lecto creates a video of your mosaic assembling, with each photo flying into place.

Hey Product Hunt! 👋 I built Lecto because I wanted to do something fun with the thousands of photos sitting in my library. What if I could turn one photo into a mosaic made entirely from my other photos? 🖼️ ✨ Here's how it works: - 📸 Pick any target photo - 🧩 Lecto analyzes your library and matches each tile by color - 🎬 Watch the assembly video — photos fly in and form the mosaic - 🔒 Everything runs on-device. Your photos never leave your phone. A few things I'm proud of: - Every single tile is a real photo from your gallery — zoom in and you'll recognize your memories 🔍 - Smart color matching algorithm with neighbor analysis for the most accurate result possible 🎯 - Zero cloud, zero accounts, zero tracking. Privacy is not a feature, it's the default 🛡️ - Photo groups let you exclude photos from your mosaic — we all have those screenshots and awkward selfies that should never see the light of day 🙈📂 🎬 Video export is landing in v1.0.3 — by the time you're reading this, the update is probably already live! Would love to hear your feedback! What photo would you turn into a mosaic first? 🎨

Lecto - Turn any photo into a mosaic made from your memories

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