AI-powered second brain

Remember everything. Organize nothing.

notesbookmarksarticlesimagesideas

One private place for everything you want to remember. No folders. No filing. Just save and find.

What it does

The first and only extension for your real mind

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Smart bookmarks

Save any link from the web. 2ndBrain recognizes whether it's an article, video, product, or recipe automatically.

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Quick notes

Capture thoughts as they come. No folders, no notebooks — just write and save.

AI organization

AI reads, understands, and tags everything you save. You never organize manually.

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Reader mode

Read any article distraction-free, inside 2ndBrain. No ads, no clutter.

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Search everything

Find anything by searching content, not just titles. Ask naturally and it understands.

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Serendipity

Rediscover forgotten ideas from your past. 2ndBrain resurfaces things you saved long ago.

No social features. No ads.
No tracking. Just your mind.

We believe your thoughts are private. 2ndBrain is a personal tool — built for you alone, not to be shared, liked, or followed.

Try it out