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ADHD Notes vs Obsidian: which second brain fits an ADHD brain?

Last reviewed July 2026

Obsidian is one of the best homes ever built for knowledge: local Markdown files, backlinks, a graph of everything you have ever thought. If you want to keep ideas for years and watch them connect, it is superb, and this page is not going to talk you out of it.

But a vault has one structural trait that matters enormously for ADHD: it waits silently. It remembers everything and reminds you of nothing. That is fine for knowledge, because knowledge can wait. It is fatal for commitments, because a follow-up that waits for you to remember to look is a follow-up that is already dropped. ADHD Notes exists for exactly that other half: open loops, with context, that come back to you on their own.

ADHD Notes vs Obsidian, side by side

ADHD NotesObsidian
StoresOpen loops: tasks, follow-ups, threadsKnowledge: notes, ideas, reference
A thing’s fateClosed and forgotten; that is the winKept forever; gains value over time
Attention directionIt comes to you (push): follow-ups resurface, reminders arriveYou go to it (pull)
StructureDeliberately near zero: flat, capture-firstRewarded: links, folders, plugins, graph
What a "note" isContext riding on a task, so future-you picks it up coldThe point itself; the knowledge
Fails whenDesigned against exactly that; resurfacing is the productYou stop visiting the vault
PriceFree while in beta; one paid plan (around 6 a month) is plannedFree for personal use; optional paid sync add-on

Who each one is best for

Pick Obsidian if: You are building a long-term knowledge base: research, writing, ideas that gain value as they connect. Nothing resurfaces tasks in a vault unless you build and maintain that machinery yourself.

Pick ADHD Notes if: Your problem is not storing what you know, it is dropping what you owe: the follow-up, the reply, the thread that left your head the moment it was out of sight.

Frequently asked

Is ADHD Notes an Obsidian alternative?
Not really, and that is the honest answer. They solve opposite halves of the same problem. Obsidian keeps what you want to remember; ADHD Notes returns what you need to act on. Most people who love one genuinely benefit from the other.
Can I not just track tasks in Obsidian?
You can put checkboxes in notes, and plugins can collect them. But a checkbox in a vault is still silent: it depends on you opening the right note at the right time. For an ADHD brain, out of sight is out of mind, so the missing piece is a system that reaches out to you. That is the part ADHD Notes is built around.
Why do second brains fail people with ADHD?
The usual failure is not capture, it is retrieval. The vault grows, the visits stop, and everything in it quietly stops existing. A second brain for commitments has to do the remembering AND the reminding. Knowledge can live in a library; loops need an assistant.
Should I use both together?
That is the setup we would actually recommend: keep Obsidian for knowledge, notes, and ideas, and give your open loops to ADHD Notes so they come back on their own. The two barely overlap.

Other Obsidian alternatives worth knowing

Todoist: the fast, connected general to-do list · see the full comparisonTickTick: the all-in-one with calendar, habits, and a Pomodoro timer · see the full comparisonThings: the beautiful, calm, Apple-only list · see the full comparisonGoblin Tools: quick single-purpose ADHD helpers, not a home for tasks · see the full comparison
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