Free
Free
1000 bookmarks/notes · 200 highlights · no PDF annotation · 50 screenshots/images · 5 outliners · 1 private group with 3 members · limited social-media bookmarking
Checked 1 Oct 2026
Plans and prices
Diigo pricing
Teacher
Free
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
Checked 1 Oct 2026
Standard
$5 a month
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
Checked 1 Oct 2026
Professional
$6 a month
Unlimited bookmarks/notes, highlights, PDF annotations, cached pages and screenshots/images · unlimited outliners and groups · unlimited social-media bookmarking
Checked 1 Oct 2026