Diigo vs Linkman

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.

Linkman organizes bookmark collections with keywords, folders, or both. Search can use wildcards, phrases, and AND, OR, and AND NOT operators, and the product includes duplicate detection. Bookmarks are stored in local XML databases that can be password protected. Pro adds checks for dead links, major content changes, and moved pages, and can update URLs when pages move. It also supports syncing through services such as Dropbox, Google Drive, OneDrive, Syncplicity, Backblaze, and SpiderOak; Pro can be installed on a USB stick. Linkman is available for Windows and as a browser extension, with direct integrations listed for Chrome, Firefox, Internet Explorer, and Opera, plus support for other browsers. Lite is free for private, non-commercial use and limited to 10,000 bookmarks. Pro costs 24.95 USD once, and a 30 day trial is listed. The maker lists Coburg, Germany as its headquarters; Linkman was initially released in 1997.