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Hypothesis - Web & PDF Annotation

By Annotation Unlimited PBC

Collaboratively annotate, highlight, and tag web pages and PDF documents.

View Chrome Web Store
PublishedPlus membersSee all with Plus · $19/mo
Store users≈300KRounded by the Chrome Web Store
Store rating4.1 / 5224 ratings
Last store update15 Apr 2026Version 1.1754.0.0 (Official Build), 6 months ago

Inside the extension

Hypothesis - Web & PDF Annotation developer product preview 1
Product image 1 of 4

See our verdict on Hypothesis - Web & PDF Annotation

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See all with Plus · $19/mo

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Audience & ratings

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Users and ratings over time, growth in the last 30/90/365 days.

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Release history

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See all with Plus · $19/mo

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Permissions & access

Access levelHigh

Can read and change every website you visit.

What it’s allowed to do, not what it actually does. Not a safety rating.

Permissions 4

Sensitive2

  • Read and change data on every website<all_urls>
  • See the address and title of every open tabtabs

Standard2

  • Run its code on pages it can accessscripting
  • Save its own settingsstorage

Members also see when a new version asks for new access.

Website access All

  • All websites
Extension ID
bjfhmglciegochdpefhhlphglcehbmek
Package size
4.78MiB
Manifest
Version 3

The maker

This is the only listing we know of from Annotation Unlimited PBC.

Listings
1
Combined store users
≈300K
Store Featured
1

Combined users can count the same person more than once. Maker profile

Ext Watch AI

What do the facts
actually tell you?

A research brief for Hypothesis - Web & PDF Annotation, connecting audience, ratings, release activity and competitive context. Every finding points back to the observations behind it.

Momentum

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What reviewers say

Top complaints, praise and recent issues, quoted from real reviews

Maintenance

Past updates, and how often it gets updated

Access

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Business context

Other extensions by this maker, and signs people pay

Competition

Related products and audience size

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