Diigo vs Karakeep

Diigo is a personal knowledge-management tool for collecting, annotating, and organizing web material. While browsing on a computer, tablet, or phone, users can mark pages with highlights and sticky notes, then save links, pages, notes, and pictures in a cloud library. Saved pages can be archived and searched in full text. Groups can maintain shared repositories where members browse material and interact with page annotations. Diigo also supports saving items from social media, capturing links and notes by email, importing bookmarks from browsers, Delicious, or Pinboard, and exporting libraries and annotated PDFs. Its listed services include an API, blog auto-publishing, tagrolls, and linkrolls. Diigo offers a browser extension, apps for Android and iOS, and Quick Note on Mac. The free plan allows 1,000 bookmarks or notes and 200 highlights, but has limits on other items and groups. Paid plans are Standard at $5 a month and Professional at $6 a month. Diigo says browsing history is not recorded except for pages specifically bookmarked to its servers.

Karakeep saves links, notes and images, then applies AI tags to help people retrieve them. Search includes full-text, keyword, hybrid and semantic options; OCR can make text in images and screenshots searchable. Saved articles open in a reader view with highlighting, and mobile apps support offline reading. Users can make rules to organize bookmarks, subscribe to RSS feeds and publish lists as feeds. Shared lists can give friends or teammates editor or viewer access. For AI assistant access, Karakeep offers agentic skills, a first-party MCP server, a CLI and an API with scoped permissions and markdown content. The open-source app can be self-hosted with Docker, with unlimited bookmarks and storage on its free self-hosted plan. The free cloud plan includes 10 bookmarks and 20MB storage. Pro costs $4 a month and includes 50,000 bookmarks and 50GB storage. Platforms include Android, iOS, macOS, web, API, browser extension and self-hosted use. The cloud privacy policy says primary data is stored in Europe and personal data is not sold.