Readwise

Readwise is a knowledge retention tool designed to help users remember and actively engage with what they read. It centralizes highlights and notes from multiple reading platforms and resurfaces them over time so key ideas are not forgotten. The primary purpose of Readwise is to transform passive reading into a consistent, lightweight review habit that reinforces learning and long-term recall.

Readwise connects with Kindle, Apple Books, Instapaper, Pocket, PDFs, web articles, and more, automatically importing your highlights and annotations into a single, searchable library. It uses spaced repetition and customizable daily review emails or in-app feeds to resurface selected highlights at optimal intervals. Users can organize notes with tags, filters, and custom collections, as well as edit, merge, and annotate existing highlights. A key advantage is its integration with note-taking tools like Notion, Obsidian, Roam Research, and Evernote, enabling automatic syncing of highlights into personal knowledge management systems.