AdGuard AdBlocker
Privacy & SecurityFree
Unmatched adblock extension against advertising and pop-ups. Blocks ads on Facebook, YouTube and all other websites.
4.768,500 reviews16M+
View Extension
Hypothesis - Web & PDF Annotation
Collaboratively annotate, highlight, and tag web pages and PDF documents.
4.1223 reviews~300K+ usersBy Annotation Unlimited PBC
Free
Updated 2026-09-01Hypothesis - Web & PDF Annotation screenshots
Overview
Website Email support@hypothes.is Phone +1 415-295-5689 Trader This developer has identified itself as a trader per the definition from the European Union and committed to only offer products or services that comply with EU laws. D-U-N-S D-U-N-S (Data Universal Numbering System) is a globally recognized system developed by Dun & Bradstreet (D&B) that assigns a unique nine-digit identification number to businesses. Learn more 047551006 Privacy Manage extensions and learn how they're being used in your organization Try Chrome Enterprise Core Hypothesis - Web & PDF Annotation has disclosed the following information regarding the collection and usage of your data. More detailed information can be found in the developer's privacy policy.
Pricing
Hypothesis - Web & PDF Annotation is free. There is no paid tier to consider.
Similar extensions
Google Translate
EducationFree
Translate selected text or a full page without leaving the tab.
4.244,800 reviews33M+
View Extension
Honey
ShoppingFree
Finds and applies coupon codes at checkout.
4.6179,700 reviews12M+
View Extension
Free VPN for Chrome - VPN Proxy VeePN
ProductivityFree
VeePN is a VPN extension that unblocks websites and secures your connection with encrypted tunneling and unlimited bandwidth.
4.552,000 reviews14M+
View Extension
Adobe Acrobat: PDF edit, convert, sign tools
ProductivityFreemium
Do more in Google Chrome with Adobe Acrobat PDF tools. View, fill, comment, sign, and try convert and compress tools.
4.462,900 reviews311M+
View Extension
Tampermonkey
ProductivityFree
Tampermonkey lets you install and run userscripts to customize websites, automate repetitive tasks and enhance functionality.
4.773,000 reviews11M+
View ExtensionFrequently asked questions
Is Hypothesis - Web & PDF Annotation free?
Yes, Hypothesis - Web & PDF Annotation is free to install and use.
What are the best Hypothesis - Web & PDF Annotation alternatives?
Browse the directory category for comparable options.
Related extensions to Hypothesis - Web & PDF Annotation
Picked from the same category and the tags hypothesis, web, pdf — jump straight to the alternatives and head-to-head pages people open next.
AdGuard AdBlocker alternativesUnmatched adblock extension against advertising and pop-ups. Blocks ads on Facebook, YouTube and all other websites.Google Translate alternativesTranslate selected text or a full page without leaving the tab.Honey alternativesFinds and applies coupon codes at checkout.Free VPN for Chrome - VPN Proxy VeePN alternativesVeePN is a VPN extension that unblocks websites and secures your connection with encrypted tunneling and unlimited bandwidth.
Compare Hypothesis - Web & PDF Annotation with the obvious rivals
Side-by-side feature tables, pricing and a clear recommendation.