Turn Kindle highlights into connected reading context
Import Kindle highlights with the Highlyt Chrome extension, My Clippings.txt upload, or a one-click bookmarklet. Search across books, color-code by meaning, link ideas across titles, and export structured highlights to Claude or ChatGPT through MCP. Highlyt is strongest after capture: synthesis, search, graph links, and AI-ready reuse.
How it works
Three steps to get started
Install the extension and sign in
Add Highlyt from the Chrome Web Store and sign in with your Highlyt account. Make sure you're signed in to read.amazon.com so the extension can read your notebook page.
Sync runs automatically
Every six hours of active browsing, the extension quietly opens your Kindle notebook in a background tab, reads what changed, and posts new highlights to your library. The toolbar icon shows a green count when something new arrived.
Read, search, and connect
Each Kindle book gets its own page in your library with the cover, your highlights, your notes, and a deep link back to read.amazon.com. From there the synthesis tools work the same way they do for PDFs: search, color-code, link, export.
Who it's for
Built for how you actually read
Stop losing the highlights you cared enough to mark
Your Kindle library may have hundreds of highlights you'll never look at again because finding and reusing them is hard. Import turns that pile into a searchable library where the highlight from a book you read two years ago is one query away.
Cite book passages alongside your PDF papers
Highlight a passage on Kindle, sync it, and it sits in the same library as your peer-reviewed papers. Color-code book ideas as 'evidence' or 'counterargument' and link them to specific claims in your literature review. No copy-pasting between tools.
Build a cross-book study graph
Course textbooks live on Kindle, lecture notes live as PDFs, supplementary articles live as web clips. Auto-sync pulls Kindle into the same graph so you can search 'Kahneman' and pull every relevant highlight from every source in one place before an exam.
Frequently asked questions
Does Highlyt see my Amazon password or purchases?+
No. The extension only reads from read.amazon.com (the notebook page). It cannot access your Amazon password, payment methods, purchase history, address, or account settings. Your Amazon session cookie stays on your device. The extension sends only highlight text plus your Highlyt account JWT to Highlyt's backend.
How often does it sync?+
Every six hours of active browsing time. We don't promise strict 24-hour sync because Chrome extensions can't run when the browser is closed. You can always click 'Sync now' in the popup to force an immediate sync. After the first full sync, subsequent syncs are incremental and only pull highlights that changed.
What if I don't want to install an extension?+
Two alternatives. Connect your Kindle via USB and upload My Clippings.txt directly through the import modal. Or use the one-click bookmarklet to import a single book at a time without installing anything. The extension is the recommended path because it stays in sync automatically, but the other two paths land identical results in your library.
Which Amazon regions are supported?+
US, UK, Germany, France, Spain, Italy, Netherlands, Brazil, Mexico, Canada, Australia, and India. Japan (read.amazon.co.jp) and China (read.amazon.cn) use different DOM structures and are deferred to a future release.
How is this different from Readwise?+
Readwise is stronger for mature source coverage, Kindle workflows, integrations, and spaced repetition. Highlyt focuses on active synthesis: color-code highlights by meaning, link ideas across books, and feed graph-aware structured context to Claude or ChatGPT. MCP alone is no longer the difference; semantic colors and graph relationships are.
Does this solve every Kindle edge case?+
No. Amazon region differences, publisher export limits, personal documents, sideloaded files, and handwritten Kindle Scribe notes can still behave differently. Highlyt provides three import paths, then focuses on what happens after capture: search, semantic colors, graph links, and AI-ready export.
Will I get duplicate highlights if I re-sync?+
No. Highlyt deduplicates Kindle highlights at three independent layers: in the parser, at the document layer (existing books get new highlights merged in, not duplicated), and at the database via a partial unique index. Re-syncing the same library produces zero duplicates.
Your next book deserves better than a yellow highlighter
Every book and paper you read builds your knowledge. Highlyt makes sure none of it gets lost. Start your free trial and turn scattered highlights into a connected, searchable, AI-ready knowledge base.