Web annotation and bookmarking

Glasp

Web and PDF highlighter that builds a searchable library of saved passages, sources and notes.

Capture every idea: bookmarking interfaces on phones and browsers inside a neon metallic frame, branded InstaBookmark.com.

Meet Glasp

Glasp makes highlights and annotations the entry point to collecting web knowledge. It retains passages with their source context and offers ways to organize, export and revisit them, alongside summaries and other AI-assisted reading features.

Its current official page lists major browser extensions and native iOS and Android apps. Glasp also has a social discovery component, so users seeking a strictly private library should review visibility settings and the paid private-highlighting terms rather than assuming all saved material is private by default.

Payment structure
Freemium subscription
Hosting model
Vendor-hosted service
Free option
Yes - ongoing free plan
App types
Web app / website service | Native mobile app | Browser extension

Payment and hosting

Core highlighting, organization and export free; Pro adds expanded private highlighting and paid capabilities.

Hosting and availability
Vendor-hostedYes
Self-hostedNot listed
Open-source statusNot listed

Where you can use it

Native apps and web access
iPhone / iOSYes
AndroidYes
macOSNot listed
WindowsNot listed
LinuxNot listed
Web appYes
Progressive web appNot listed
Command-line toolNot listed
Extensions and capture
Chrome extensionYes
Safari extensionYes
Firefox extensionYes
Edge extensionYes
BookmarkletNot listed
Mobile share captureNot listed
Other browser supportNot separately verified

What to check before choosing

Test the capture and retrieval routes you need, inspect an export, and confirm current plan limits before moving your main library.

Research snapshot: September 17, 2026. Official public pages / publisher documentation reviewed; not hands-on tested.

Read the support labels carefully. Directory information comes from the September 17, 2026 research snapshot. “Not listed” means not confirmed in the reviewed sources, not definitely unavailable. Qualified, third-party, and planned support remains qualified in each profile. Check publisher sources before installing or paying.

Publisher sources

Compare the recorded detail with the publisher’s latest documentation. See how this directory is researched.