How to Capture, Export, and Actually Use Your Kindle Highlights

You've read 30 books on your Kindle. You've highlighted hundreds of passages. Good insights, useful frameworks, questions you wanted to come back to. But when was the last time you actually found and used one of those highlights?

The problem isn't that you don't highlight enough. It's that Kindle highlights are trapped. They sit in a file on your device, unsearchable across books, unconnected to each other, and invisible to the AI tools you use for thinking and writing.

Here's how to break them free.

Where are your Kindle highlights stored?

Kindle stores highlights in two places. On the device itself, they're in a file called "My Clippings.txt" (accessible when you connect your Kindle via USB). Online, they're at read.amazon.com/notebook. The online version is easier to browse but still doesn't let you search across books or connect ideas.

Method 1: Export from read.amazon.com

Visit read.amazon.com and sign in with your Amazon account. You'll see all your books with highlights. Click a book to see its highlights. You can copy-paste them manually, but there's no export button. For 5 books, this is tedious. For 30, it's not realistic.

Method 2: Use My Clippings.txt

Connect your Kindle via USB. Navigate to the "documents" folder and open "My Clippings.txt." This file contains every highlight from every book in a plain text format with timestamps and page numbers. You can import this into note-taking apps.

Limitation: the file is a flat dump. No color coding, no categorization, no way to search by concept. A highlight from page 47 of Thinking, Fast and Slow sits next to one from page 3 of a romance novel.

Method 3: Import into a highlight manager

Tools like Readwise can automatically sync Kindle highlights, expose them to AI through MCP, and resurface them through spaced repetition. This helps you remember what you read.

Highlyt takes a different approach: instead of passively reminding you, it lets you actively organize highlights with semantic colors (yellow for key concepts, blue for questions), link them into a knowledge graph across books, and connect them directly to Claude or ChatGPT via MCP. Highlyt now syncs Kindle highlights natively too — install the Chrome extension once and your highlights land in your library while you browse. Read about how Kindle auto-sync works.

Readwise helps you remember and wins on mature import coverage. Highlyt helps you connect highlights into semantic colors, graph relationships, and source-backed AI context.

What to do with your highlights after export

The value of highlights isn't in the highlighting. It's in what you do after. Here are three workflows that turn exported Kindle highlights into something useful:

1. Color-code by meaning

Import highlights into a tool that supports semantic colors. Tag each highlight by type: key concept, question, framework, counterargument. When you search later, you can ask "show me all frameworks from my last 10 books" instead of scrolling through 500 unmarked passages.

2. Link across books

That decision-making framework from Thinking, Fast and Slow? Link it to the bias example from Predictably Irrational. Cross-book connections are where reading compounds. But they only exist if you explicitly create them.

3. Feed to AI with structure

Don't paste raw highlights into ChatGPT. Export as structured JSON where each highlight includes its book, page, color label, and any connections. Your AI gets context, not a wall of text.

FAQ

Can I search Kindle highlights across all my books?

Not natively. Kindle only lets you search within one book at a time. To search across all books, export your highlights to a tool like Highlyt which offers full-text search across your entire highlight library.

How do I take better notes on Kindle?

Highlight with intention. Before you highlight, ask: "Is this a key concept, a question, or evidence?" When you export to a tool that supports semantic colors, that classification makes your notes instantly searchable and useful. Don't highlight everything. Highlight what you want to find again.

What's the best app for organizing book highlights?

It depends on your goal. Readwise is best for mature imports and spaced repetition (remembering). Highlyt is best for active synthesis: connecting ideas across books, preserving color meaning, and feeding graph-aware context to AI. Both are useful.