Diigo

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Score7.4

Rank#2 of 42

From$5/mo

Free planYes

Runs onAndroid, Browser extension, iOS, macOS, Web

Summary

Diigo is a personal knowledge management tool for saving and organizing material from the web. Users can mark pages with highlights and sticky notes, then keep links, pages, notes, and pictures in a cloud library. Saved webpages can be archived and searched in full text. Shared group repositories let members browse and search saved material and interact with page annotations. Diigo also supports bookmarking items from social media, saving links and notes by email, importing bookmarks from browsers, Delicious, or Pinboard, and exporting a library or annotated PDFs. Its web services include an API, blog auto-publishing, tagrolls, and linkrolls. Available tools include a browser extension, Android and iOS apps, and Quick Note on Mac. The free plan allows 1,000 bookmarks or notes and 200 highlights, with additional limits on images and groups. Paid plans start at $5/mo. Diigo says it does not record browsing history beyond pages users specifically bookmark to its servers.

Who it is for

Diigo may suit people who collect web material for research, study, or work, including students, teachers, researchers, consultants, and recruiters. Shared repositories may appeal to groups that want to discuss and annotate saved pages.

What is good

Archived webpages can be searched in full text.
Highlights and sticky notes work while browsing.
Supports browser, Android, iOS, and Mac tools.
Can import and export bookmarks.
A free plan is available.

What to know first

The free plan limits bookmarks and notes to 1,000.
The free plan allows 200 highlights.
Diigo says its servers are located in the United States.

Verdict

Diigo brings web clipping, annotation, archiving, and shared libraries together. The free plan has defined storage and feature limits, while paid plans start at $5/mo.

Diigo plans and pricing

All plans

Free Free $0 1000 bookmarks/notes · 200 highlights · no PDF annotation · 50 screenshots/images · 5 outliners · 1 private group with 3 members · limited social-media bookmarking diigo.com · 1 Oct 2026

Teacher Free $0 Unlimited bookmarks/notes · 5000 highlights · 50 PDF annotations · 1000 screenshots/images · 20 outliners · 1 public group with unlimited members · 20 private groups with 50 members each diigo.com · 1 Oct 2026

Standard $5/mo Only $5/month, $40/year Unlimited bookmarks/notes and highlights · 100 PDF annotations · unlimited cached pages · unlimited screenshots/images · 40 outliners · 1 public group with unlimited members · 3 private groups with 10 members each diigo.com · 1 Oct 2026

Professional $6/mo Only $6/month, $59/year Unlimited bookmarks/notes, highlights, PDF annotations, cached pages and screenshots/images · unlimited outliners and groups · unlimited social-media bookmarking diigo.com · 1 Oct 2026

Compared on bookmark managers

Free plan: Yesdiigo.com
Full-text search: Yesdiigo.com
Browser extension: Yesdiigo.com
Mobile apps: Yesdiigo.com
Web archiving: Yesdiigo.com
Saved item limit: 1,000 itemsdiigo.com

Facts

Product purpose: Diigo describes itself as a multi-tool for personal knowledge management.diigo.com · 1 Oct 2026
Annotation: Users can add digital highlighters and sticky notes while browsing on PC, tablets or mobile.diigo.com · 1 Oct 2026
Cloud library: Diigo stores links, pages, notes and pictures in a cloud library accessible anywhere.diigo.com · 1 Oct 2026
Collaboration: Groups can create shared knowledge repositories where members browse, search and interact with on-page annotations.diigo.com · 1 Oct 2026
Social integrations: The tools page says social-media bookmarking can automatically save favorite items from social media to Diigo.diigo.com · 1 Oct 2026
Email capture: Diigo provides a Save by Email service for saving links and notes by email.diigo.com · 1 Oct 2026
Import and export: Diigo supports importing bookmarks from a browser, Delicious or Pinboard and exporting the library and annotated PDF files.diigo.com · 1 Oct 2026
API and publishing: Diigo lists a Diigo API, auto-publishing to blogs, tagrolls and linkrolls among its web services.diigo.com · 1 Oct 2026
Supported apps: Diigo lists a browser extension, Diigo Browser for iOS, Diigo for Android and Quick Note on Mac.diigo.com · 1 Oct 2026
Privacy: Diigo says it does not record browsing history except for pages users specifically bookmark to its servers, which are located in the United States.diigo.com · 1 Oct 2026
Security: Diigo says accounts use member-created passwords, reasonable database protections and restricted employee access, while noting it cannot guarantee account security.diigo.com · 1 Oct 2026
Accessibility: Diigo states that it meets most WCAG 2.0 standards.diigo.com · 1 Oct 2026
Users: Diigo says its users include law firms, marketing agencies, consultants, recruiters, web designers, researchers, students and teachers.diigo.com · 1 Oct 2026