Highlyt

What it does

Color-code ideas by meaning. Link highlights across books and papers. Every reader knows the pain: thousands of highlights across PDFs and books, all orphaned, never connected. Highlyt makes every highlight a node and every connection a typed edge (supports, contradicts, expands, questions). The result: a knowledge graph of your actual thinking.

Turn highlights into AI-readable context with semantic colors, linked ideas, source citations, and MCP access for Claude and ChatGPT.

Highlyt lets you color-code ideas by meaning, link them across books and papers, and connect Claude or ChatGPT directly via MCP. Your highlights stop being dead text and become source-backed memory. That paper you read last Tuesday? The one with the perfect framework? You highlighted it. You know you did. But now it's buried in a folder somewhere, and you're re-reading the whole thing. You remember the insight. You remember the yellow highlight. Maybe it was in Atomic Habits, maybe that research paper on habits. You open 6 PDFs, scroll through hundreds of pages, and pray. Most of the time, you give up and rewrite it from memory. You paste 3 pages of book highlights into Claude. It treats…from highlyt.app

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