Leo

Archives are full of documents almost nobody alive can read: faded ink, archaic scripts, damaged pages. Leo pairs AI transcription with a reading experience built for the people who work with these sources — drop a scan in, and get faithful, readable English out, side by side with the original.

We built the platform end to end: a Next.js frontend over a NestJS and Supabase backend, Clerk for authentication, and Stripe powering the subscription flows. The craft is in the reading room itself — OpenSeadragon drives buttery deep-zoom over ultra-high-resolution scans so researchers can inspect individual pen strokes, and DnD Kit makes bulk uploads feel effortless. Leo is live and taking subscribers at tryleo.ai.