Free local-first research workspace

You already marked it. Now find it again.

Write in Markdown. Read PDFs and notebooks. Capture the web. Plan the day. Then find the exact idea again—even when you only remember what it meant.

  • Free to download and use
  • No account
  • Works offline
ADHDNotes open to a polished Live Markdown research note with tasks, a callout, an outline, and the Library beside it.
One calm workspace for writing, reading, planning, and returning to the work.
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  • Windows and macOS available now
  • Clipper live for Chrome + Firefox
  • Private no hosted sync service
  • Yours plain .md files in folders you choose
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one connected research loop

Not another place to put things. A way back to them.

ADHDNotes connects the work that usually gets scattered across a Markdown editor, a PDF reader, browser tabs, a task app, and a calendar.

01

Write and read side by side

Live Markdown, research PDFs, and read-only Jupyter notebooks share one Library and a focused side-by-side workspace.

ADHDNotes split view with a research PDF on the left and a related Live Markdown note on the right.
02

Mark with meaning

Claim, Action, Doubt, Settled, and Define are reasons—not decorative colours.

03

Find by words or meaning

Fast word matching finds precise hits. Private similarity search adds passages that express the same idea differently.

Meaning
04

Turn dates into runways

Plan backwards from a deadline and let unfinished tasks face a decision instead of fading into the backlog.

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research areas

Give the question a home. Leave every source where it belongs.

Create an Area for a thesis, course, client, or question. Link the Notes, PDFs, notebooks, Marks, and Snips that matter without moving, duplicating, or reorganizing the originals.

01

Gather across formats

A paper, the note it inspired, a notebook experiment, and a passage from the web can sit in one working set.

02

Work without leaving the Area

Open an item in place, keep the rest of the research visible, and return to the next source without retracing your steps.

03

See the structure you created

Switch between Cards, List, and Graph. Expand a shared item to reveal the other Areas it connects—only relationships you chose, never invented ones.

My AreaAttention & task resumptionResearch synthesis · 8 items
CardsListGraph
An ADHDNotes research Area shown as a graph The selected Attention and task resumption Area connects to a Note, PDF, Notebook, Mark, and Snip. The shared Mark also reveals a second Area named Literature review. NOTERestart cues PDFWorking memory NOTEBOOKTiming study MARKResume cost2 SNIPNext actions ATTENTION &TASK RESUMPTION LITERATUREREVIEW
Linked by you Shared with another Area

Start with Inbox, Favorites, Reading, Research, and Reference—or create your own. A preparation runway can become an Area too, carrying the work beyond the date it began with.

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the annotations workspace

Every mark you make becomes a findable object.

Highlight a line in a note, mark a PDF page, capture a passage from the web, or annotate a notebook’s Markdown cell. Every mark appears in one place and still knows exactly where home is.

It is not the syntax; plenty of editors have highlights. The difference is the shared cognitive system: every mark becomes a typed, retrievable object, whether it began in a note, a PDF, a notebook, a full-page Mark, or a selected Snip.

Markdown marks stay readable in your files. PDF and notebook annotations stay privately on your device, while ADHDNotes leaves the originals untouched.

ADHDNotes Live Markdown note showing an Important callout, Claim, Action, Settled, Doubt, and Define highlights, and an Open question callout.

Meaning is visible while you write, then every mark remains available from the shared Annotations workspace.

Origin

  • Notes
  • Daily notes
  • Marks
  • Snips
  • PDFs
  • Notebooks
  • All

Group by

  • Meaning
  • Document
  • Source
  • Date

Browse Highlights, Callouts & Notes, or Both. Group by meaning, document, source, or date.

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the hand-off

Watch a mark leave the document and arrive in the catalog.

This is the part that is hard to describe and easy to see. Write the note; the highlight and the callout become entries you can find later, without you filing anything.

research/attention.md

Live Markdown
Scaled dot-product attention
Softmax turns the raw scores into a probability distribution over positions.
Aha moment

The scale factor is about variance, not size.

softmax(QKT√dk)V
Re-derive the variance argument before Thursday

Annotations

grouped by meaning

  • Highlight · Settled

    a probability distribution over positions

    attention.md

  • Callout · Aha moment

    The scale factor is about variance, not size.

    attention.md

  • Highlight · Settled

    Masking adds negative infinity before the softmax, never after.

    sequence-models-lecture-07.pdf · p.4

  • Callout · Aha moment

    Heads are concatenated and projected, not averaged.

    Saved page · attention-lab.example.com

The two marks made in the note join a highlight taken from a PDF page and a callout added to a saved web page. Same catalog, four different origins, each one still pointing back to where it came from.

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the shared vocabulary

Five highlights. Twelve callouts.

Colour tells you why a passage mattered—a claim, an action, a doubt—while callouts give different kinds of thinking a consistent shape. It all remains plain Markdown.

Highlights

Five colours, five reasons to mark something. Select one to see how it reads as Markdown and how it renders.

Markdown source

Attention lets every token ==look directly at== every other token, not just its neighbours.

Rendered

Attention lets every token look directly at every other token, not just its neighbours.

SyntaxMeaningColour
==text== Claim #FFD84D
==o:text== Action #F48D40
==p:text== Doubt #E25BA0
==g:text== Settled #22B979
==b:text== Define #12BFEF

Callouts

Twelve blockquote tokens for the twelve reasons you stop mid-read. Select one to see how it actually renders. A callout is not just a syntax token; it is a coloured card with its own icon.

Note

Freeze the shuffle before the sweep, not after the first surprising result.

All twelve, with what each one is for

> [!NOTE]

Note

An ordinary observation worth keeping.

> [!AHA]

Aha moment

The moment it clicked, marked so you can find it in six weeks.

> [!REMEMBER]

Remember

The thing you will otherwise forget.

> [!REF]

Come back to

An unfinished thought, deliberately parked.

> [!DEF]

Definition

A term pinned down once, in your own words.

> [!EXAMPLE]

Example

The concrete case that makes the abstract one land.

> [!TIP]

Tip

Something that will save you time next time.

> [!IMPORTANT]

Important

Do not skim past this one.

> [!QUESTION]

Open question

Something you do not understand yet, stated plainly.

> [!EXAM]

Testable

Likely to be assessed. Findable the night before.

> [!WARNING]

Warning

The trap you already fell into once.

> [!PREP]

Preparing for

Seeded automatically across the days before a date.

Full callout reference in the docs →

These are ordinary Markdown blockquotes and ordinary ==text== highlights. Nothing is proprietary, and nothing is lost when you open the file in another editor.

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forced daily migration

Yesterday gets a verdict.

Every task you did not finish comes back the next morning. It blocks the app, one task at a time, until you decide what happens to it.

There is no dismiss button. There is no snooze. There is no quiet way to let a task age out of view. You either move it to today or admit it was never important. You decide before you write anything else.

Each morning, unfinished work returns for a clear decision. ADHDNotes adds this friction deliberately, because a task that never has to be answered for is a task that quietly disappears.

The migration modal blocking the app until yesterday is settled. Every task gets its own decision; the bulk actions are the only shortcut, and neither of them is “later”.
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preparation runways

Plan backwards from the date.

Choose an important date and how much preparation time it deserves. ADHDNotes turns the days before it into a visible runway, with the next step waiting in each daily note.

Finish early, move the target, or extend the runway as plans change. The whole span stays visible on the day map, with an Area ready to hold the material behind the work.

Complete early

Finish ahead of schedule and close the runway without waiting for the date.

Arrive ready

The runway carries the work forward until the target day arrives.

Move the date

Shift the target and the preparation plan moves with it.

Give it more room

Extend the runway when the work needs more time.

Start from a calendar date, an event, or the note already in front of you. The runway stays connected to the reason you created it.

ADHDNotes preparation sheet planning backwards from a calendar date, with options for daily prep lines, a first task, an Area, and an alert.

Choose the target. ADHDNotes builds the runway between now and then.

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one library, several formats

Notes, PDFs, and notebooks belong together.

Point ADHDNotes at folders you already own. Markdown files, PDFs, and Jupyter notebooks appear in one Library without a vault migration, bulk import, or format conversion.

Switch among All, Markdown, PDF, and Notebook lenses. PDFs open with page navigation, outline, zoom, annotations, and find-with-highlight. Jupyter .ipynb files open in a polished read-only cell reader with outline, in-notebook find, and cell-anchored search results.

Highlights and callouts work on PDF pages just as they do in notes. ADHDNotes keeps your annotations close while leaving the original PDF untouched.

ADHDNotes Library with a research PDF open beside a related Markdown note in a split workspace.

Read a paper beside the note it is shaping. The source files remain untouched.

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find my thought

Remember the idea, not the exact phrase.

Find My Thought searches Markdown notes, PDF pages, notebook cells, Marks, and Snips. Exact words appear instantly, then private similarity search finds relevant passages that use different language.

Try a phrase below and watch the research narrow. Clear it to see the complete set again.

Search begins with the wording you remember, then widens to related ideas. Results found by similarity carry a clear Meaning badge. Open any result at its heading, PDF page, notebook cell, or original capture. Your queries and source text stay on your machine.

Source

  • All
  • Notes
  • Marks
  • Snips
  • PDFs
  • Notebooks

Resource

  • All
  • Markdown
  • PDF
  • Notebook

6 results

Words + meaning · stays on your device

  • Note Words

    focus-recovery.md

    ~/research/focus-recovery.md

    Leave one visible restart point before stopping, so returning to unfinished work does not require rebuilding the whole context.

  • Note Meaning

    attention-notes.md

    ~/research/attention-notes.md

    Returning becomes easier when the next meaningful step is already written down before the current session ends.

  • Mark Words

    Interruptions and working memory

    Mark · research-workflow.example.com

    The cost of an interruption is often paid when work resumes, because the unfinished context has to be reconstructed.

  • Snip Words

    Designing for task resumption

    Snip · attention-lab.example.com

    A concrete next action reduces the effort required to re-enter a complex task after time away.

  • PDF Words

    Cognitive Load Review

    cognitive-load-review.pdf · p.18

    External cues can preserve enough context to shorten the time needed to resume demanding work.

  • Notebook Words

    focus-timing.ipynb

    focus-timing.ipynb · cell 12

    Sessions with a written restart point returned to productive work sooner than sessions without one.

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your day

One page for today, and nothing pretending it isn't today.

The daily note opens on Focus: the handful of things that matter right now. Alongside it are a read-only view of your calendar, a day map of where the hours actually went, and tasks that carry their own age so an item cannot sit quietly for a month.

Focus

A short, deliberately small list at the top of the day. Not everything on your plate, just what today is for.

Calendar, read-only

Outlook and macOS events show up in the day, in their hour, colour-coded by account. Nothing is ever written back to the provider.

Task age badges

A task that has been open for a week says so. Age is visible, not something you have to go looking for.

My Actions

Timed blocks with a start time and a duration, distinct from the task list, for the things that need an actual slot in the day.

The day map

Calendar events, My Actions, and preparation runways laid out against the clock, so the shape of the day is visible at a glance.

Alerts

A lead time attached to a timed action, so it can nudge you before the slot arrives rather than the moment it starts.

Priority, recurrence, and timed actions stay visible in the note itself:

* [ ] !HIGH Send the licence question
* [ ] @weekly:monday Plan the week
+ [ ] 09:00 [90m] Deep work

Your daily plan remains readable Markdown—even outside ADHDNotes.

from date to action

Open the day. Start preparing. Put time where it belongs.

The day map is more than a miniature calendar: each date opens the note for that day, starts a preparation runway, or adds a timed action without sending you through another planning app.

ADHDNotes Day map menu for September 9 with actions to open the daily note, open it in a new tab, prepare for the date, or add a timed item.

The current Day map, without leaving the workspace.

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browser extensions

Capture in Chrome, Firefox, and Safari.

Save a whole page as a Mark or select only the passage you need as a Snip. Chrome and Firefox install from their stores. Safari uses a small companion app — download it, open it once, then turn the extension on in Safari Settings.

Browser names and logos are trademarks of their respective owners. ADHDNotes is not affiliated with or endorsed by Google, Mozilla, or Apple.

The clip was never the point.

Saving a web page is only useful if you can work with it later. In ADHDNotes, the page joins the same reading, marking, and finding loop as everything you wrote yourself.

A page you clip becomes an editable Live Markdown document. Add the same highlights and callouts you use in notes, find it later by words or meaning, and return to the untouched capture with Revert to original capture.

  1. Clip a page, or highlight text on it and clip a Snip of just that selection.
  2. It arrives as editable Live Markdown, with its images saved offline and its source URL kept.
  3. Highlight it, add a callout, annotate it. It takes the same marks a note does.
  4. Those marks join your other annotations, and the page becomes findable like anything else you wrote.
  5. Revert to original capture whenever you want the untouched page back.

Your capture goes straight to ADHDNotes on your computer—no hosted capture account in the middle.

ADHDNotes Downloads workspace with a captured research page open as editable Live Markdown beside the saved Marks list.

A saved page becomes editable Live Markdown while its pristine capture remains recoverable.

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local-first by design

Your files remain the source of truth.

Markdown stays ordinary Markdown in folders you choose. PDF and notebook originals are never rewritten. Everything ADHDNotes needs to remember stays locally on your device and serves your files—not the other way around.

==g:settled claim==
+ [ ] 09:00 Deep work
[[Aug 16 · Reading group]]

Open the same file in any Markdown editor and the important parts still make sense: highlights remain highlights, tasks remain tasks, and links remain links. PDF and notebook annotations stay private on your device while their original documents remain untouched.

Your notes are files, and they outlive the app.

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what’s next

More formats. More ways to think.

ADHDNotes is growing beyond the formats it supports today—while keeping the same calm, local-first workspace.

Word documents

Bring .docx research documents into the same Library, so they can be read, searched, and annotated alongside the rest of your work.

More notebook formats

Read Marimo, R Markdown, and Quarto beside the notes and papers they belong with.

Notebook execution

Move from reading notebooks to running cells and exploring results without leaving your research workspace.

Local AI with Ollama

Optional local assistance for summarizing, rewriting, and working through ideas—while keeping the core app useful without AI.

More calendar connections

Bring more calendars into the day view, including Google, Yahoo, iCloud, and CalDAV.

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get adhdnotes

Free to download. Free to use.

No subscription, no account, and no hosted sync service. Get ADHDNotes for Windows from the Microsoft Store, or download the Mac app for Apple Silicon.

Available now

macOS

ADHDNotes 1.0.2 for macOS 13 or later on Apple Silicon. Open the disk image and drag the app to Applications.

Download for Mac

Chrome, Firefox, and Safari clippers are available now. Safari is a separate companion app, not part of the ADHDNotes Mac download.