An AI-native second brain — no vault, no plugins to wire.

Open a tab and your notes are there — on your laptop, your phone, anywhere. No vault to host, no sync service to pay for, no markdown files to shepherd between machines.

Ask questions and get answers drawn from the notes you actually wrote, with citations back to the exact passage. The intelligence is built in — not a plugin you bolt on and maintain.

Find the note you mean even when you don't remember the words you used. Vector search surfaces related ideas across your whole library, so old notes resurface when they're relevant.

Turn any note or source set into flashcards and a practice quiz in one pass, then review them in a focused reader that remembers where you left off — no community plugin required.

Obsidian's power lives in plugins you discover, configure, and keep working across updates. Here the capabilities — AI chat, search, study tools, publishing — ship in the box and stay in sync.

Here's what a local notebook can't do: turn a note into a public, SEO-ready post, paywall the deep version, and keep the subscribers — all in the same workspace, no export-and-rebuild.

How is JustJot.ai different from Obsidian?

Obsidian is a local-first app: your notes are markdown files on your machine, and most of its power comes from a plugin ecosystem you assemble and maintain. JustJot.ai is cloud-native and AI-native — it opens in any browser, grounds chat in your own notes, and ships search, study tools, and publishing built in. You trade the tinkering for a setup that just works everywhere, and you gain the ability to publish and paywall what you write.

Can I use it without installing anything?

Yes. There's no desktop app to install and no vault to set up. JustJot.ai runs in your browser on any device, so your second brain is the same whether you're on your laptop or your phone.

Does the AI actually use my notes, or just make things up?

It's grounded in your material. You point the AI at a set of notes (and PDFs or links if you add them) and answers are drawn from those sources, with inline citations back to the passage they came from — so you can verify before you trust it.

Can I turn my notes into study material?

Yes — any note or source set can become flashcards and a practice quiz in one pass, then you review them in a focused reader that remembers where you left off. No separate spaced-repetition app or plugin needed.

Is it free to try?

You can start for free: write notes, ask the AI questions about them, and generate study material without a credit card. Paid tiers exist for heavier use and for paywalling your own published work.