Remember Everything You Read Online. An open-source and privacy focused extension to Full-Text Search, Annotate and Organise your Web-Research

  • Memex
  • Memex
  • Memex
  • Memex
  • Memex
What is Memex?
Memex is a Firefox add-on intended to enhance online research. Features include full-text search capability for pages and PDFs, the ability to annotate websites, a flexible organisational system for tagging and sorting into collections, and the ability to share these collections for collaboration. Importantly, it works across all devices, does not require signup, and operates offline with all data stored on your device. Memex is open-source and prioritises user privacy.
Users: 436 ▼ -24
Rating: 4.38 (53)
Version: 3.19.52 (Last updated: 2024-06-18)
Creation date: 2017-04-08
Weekly download count: 14
Firefox on Android: No
Risk impact: Very high risk impact
Risk likelihood: Moderate risk likelihood
Manifest version: 2
  • <all_urls>
  • alarms
  • bookmarks
  • contextMenus
  • tabs
  • webNavigation
  • notifications
  • unlimitedStorage
  • storage
  • clipboardWrite
Size: 9.17M
Stats date:

Other platforms

Memex (v3.19.53)
3.91 (101) 10,000
Not available on Edge
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Easily annotate, organise and share your online research. Across Devices. Watch a 4min speed run:


🔍 Full-text search pages and PDFs you annotated or bookmarked. 📝 Highlight and Annotate Websites & PDFs 🗄 Flexible organisation: Tag & Sort pages into collections + tab manager 🌎 Share, collaborate on and discuss collections of pages and notes with others. 🔗 Link to highlights and annotations
📱 Across devices: Save, View & organise your knowledge on all of your devices, phones and tablets. ⚡️ Quick onboarding. No signup necessary. Import from every major bookmarking service 😎 Offline-first. All data is stored on your device. Full Privacy & Open-Source ⛅ Backup your data to any of your favourite cloud providers

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User reviews
User reviews summary
These summaries are automatically generated weekly using AI based on recent user reviews. Firefox Browser Add-ons does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.
  • Great for research
  • Data stored on own device or cloud service
  • Excitement for continued development
  • Not truly open-source
  • Has bugs and annoying issues
  • Requires account creation and paid membership for full features
Most mentioned
  • Concerns about openness and privacy principles
  • Comparison with other similar tools like Pocket
  • Need for encryption for sensitive information
Recent reviews
View all user reviews
Risk impact

Memex is very risky to use and it requires a lot of sensitive permissions. Avoid installing this add-on unless you absolutely trust this publisher.

Risk likelihood

Memex is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

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