Readwise Alternative
A Readwise alternative for thinking across books
Readwise is a great tool for resurfacing your highlights. If what you actually want is to connect ideas across everything you’ve read — and trust that the synthesis is grounded in your own passages — that’s the gap Syntopica fills.
The short answer
Syntopica is an alternative to Readwise for readers who want to think across their books, not just review highlights. Where Readwise focuses on highlight syncing and spaced-repetition review, Syntopica imports your Amazon library and Kindle highlights and adds a synthesis layer — cross-book collections, grounded chat, and exportable syntopical briefs — with every source labeled and every citation linking back to your own highlight.
What Syntopica does differently
Readwise is built around the highlight: capture it, sync it, and resurface it later for review. That loop is genuinely good, and Syntopica doesn’t try to replace it. Syntopica is built around the next question — what do all these books, taken together, actually tell me?
- Collections group your books by theme — manually, or from patterns in your highlights.
- Cross-book chat answers a question across an entire collection at once, citing where your books agree and disagree.
- Syntopical briefs export a structured synthesis — themes, disagreements, open questions, and your own stance — as shareable Markdown.
- Reading guides & analysis give you an inspectional map before you read and an analytical summary built from your highlights after.
What they share
Both import your Kindle highlights, both keep your library in one place, and both are made for serious readers rather than social book feeds. If your only goal is daily spaced-repetition review of individual highlights, Readwise is purpose-built for that. If you want to read a subject the way Mortimer Adler called syntopical — many books in conversation — Syntopica is the tool designed for it.
Who each one is for
Reach for Readwise when you want to keep individual highlights alive through review. Reach for Syntopica when you want to sit down with a question and let everything you’ve read answer it together — grounded in the passages you marked, not a generic summary.
Frequently asked
- How is Syntopica different from Readwise?
- Readwise is excellent at syncing your highlights and resurfacing them for review with spaced repetition. Syntopica is built for the next step — thinking across your books. It groups books into collections, answers questions across all of them at once, and exports structured syntopical briefs, all grounded in the highlights you actually marked.
- Does Syntopica import Kindle highlights like Readwise?
- Yes. A Chrome extension imports your Amazon library and your Kindle highlights and notes (text, note, color, location, and chapter). Your books are then automatically enriched with covers, author bios, series order, and awards.
- Can I use Syntopica and Readwise together?
- Yes. Many readers keep Readwise for daily highlight review and use Syntopica when they want to synthesize across a topic — build a collection, ask questions across the books, and export a brief. They solve different parts of the reading workflow.
- Does Syntopica do spaced-repetition review?
- No — spaced-repetition highlight review is Readwise’s strength, not Syntopica’s focus. Syntopica’s Remember This Book feature reconstructs a previously read book from your highlights as a conversation, but it is reconstruction and synthesis, not flashcard-style daily review.
- Is Syntopica free?
- Syntopica is free during beta with no credit card required. A paid plan will follow at launch, and beta readers keep everything they have imported.
Import your library and start synthesizing
Import your Amazon library and Kindle highlights free. Get reading guides for every book and synthesize across everything you’ve read.
Free during beta, no credit card required.