Second Neuron

Capture web pages into your Second Neuron knowledge graph — powered by Claude and spaced repetition.

As of June 2026, Second Neuron has users in the Education category.

Usersno change0%
Ratingno change0%
— reviews
Reviewsno change0%
Version
1.0.2
Manifest V3

History

1 snapshots

Tracking since May 14, 2026.

Not enough history yet for this metric — the chart fills in as we collect more snapshots.
View as table
DateUsersRatingReviewsVersion
May 14, 20261.0.2
Now1.0.2

Permissions & access

Permissions
activeTabstoragescripting
Host access
https://secondneuron.com/*

Screenshots

Second Neuron screenshot 1Second Neuron screenshot 2Second Neuron screenshot 3

About

Full Description

Second Neuron captures the web pages you want to remember — without the friction.

Click the toolbar icon and the extension automatically extracts clean article text from the page. No selecting, no copying, no reformatting. Hit "Save to Brain"
and it's in your personal knowledge base, ready for spaced repetition review later.

HOW IT WORKS
• Open any article, blog post, or documentation page
• Click the Second Neuron icon in your toolbar
• The extension extracts the clean text automatically
• Review the preview, then hit "Save to Brain"
• That's it — one click, permanently saved

SMART EXTRACTION
The extension uses a 4-layer extraction system: it captures your selected text first, then falls back to article body extraction (powered by Mozilla Readability), then full page content, then URL-only if nothing else works. You always get the best possible result without doing anything extra.

PRIVACY FIRST
The extension activates only when you click the icon — it never runs in the background, never tracks your browsing, and never reads any page you haven't
explicitly chosen to save. Your API key is stored locally on your device.

PERMISSIONS EXPLAINED
• activeTab — reads the current tab only when you click the icon
• storage — saves your API key locally on your device
• scripting — injects the extraction script into the active tab

Requires a free Second Neuron account at secondneuron.com.

Technical

Version
1.0.2
Manifest
V3
Size
40.27KiB
Min Chrome
88
Languages
1
Featured
No

Metadata

ID
fdibadbmdadbajbbjmlhjdgeemaagbgb
Developer ID
u968baf5f293df85481c2d3fe9e3b6614
Developer Email
[email protected]
Created
May 13, 2026
Last Updated (Store)
May 13, 2026
Last Scraped
Jun 8, 2026
Website
secondneuron.com

Data sourced from the Chrome Web Store · last verified Jun 8, 2026.