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500 SAVED · FEW KEPT

Shrink reading from the article to the call.

Yomitomo is a local-first AI reading companion.
Highlights are your evidence. Calls are your output.

Download Yomitomo
Also on Windows → v0.14.0 · Free & open source · Reading data stays local

Desktop reading workspace

Read the source. Mark the evidence. Discuss it in context.

Yomitomo desktop reader with source highlights connected to a discussion card
Yomitomo is a macOS and Windows desktop app. Articles, highlights, and discussions stay in one reading workspace.

See how it works

One article—lines, notes and discussion all on the page itself.

Click a line in the text, or "Open discussion"
About Yomitomo · Reading

Yomitomo / Product

About Yomitomo

Yomitomo Team·Jan 15, 2025·5 min read

We read so much, and in the end almost nothing stays. Your bookmarks keep filling up, your read-later queue keeps growing, but the judgments that actually stay are pitifully few.

Yomitomo is a local-first AI reading companion for desktop. It isn't yet another cloud reader — it's a reading workbench that lives on your own computer.

While reading, draw a line under the paragraph that makes you stop. That line isn't decoration; it's an evidence anchor. Three months later you can return straight to the original context.

Most reading tools only let you save an article; no one helps you think it through. The more you save, the heavier the backlog, until the whole bookmark folder becomes a kind of debt. Yomitomo flips it around: save less, but turn what you read into your own judgment.

Beneath a single line you can hang multiple thoughts, replies, and assistant comments. It isn't a static note, but a discussion that keeps growing.

When the discussion is rich enough, you can distill it into a distillation worth keeping. A distillation doesn't replace the source — it's the crystallization of your judgment about it, carrying both its origin and your angle.

Lines, thoughts and distillations form a path from marking to judgment to conclusion. Each layer can return to the one before: from distillation back to discussion, from discussion back to the line, from the line back to the source. You're never left facing a conclusion whose origin you can't recall.

Walking that path with you are six AI companions, each with a different temperament. One helps you ask, one digs to the root, one translates dense concepts, one edits scattered thoughts into prose.

They won't read for you, nor decide for you. You can pick who joins each line, or silence them all and face the source alone. A companion's value isn't giving you answers — it's making you state your own judgment clearly.

Yomitomo supports web articles, PDF, EPUB and WeRead. Content from different sources lands in the same workbench, and synced notes keep their original anchors.

Yomitomo is completely free and open source, and your data always stays on your own computer. It doesn't push to you, doesn't reorder for you, and doesn't sell your reading to anyone. It does one thing: help you turn what you read into something that stays.

Lines & Discussion
Distilled · a conclusion to keep
A line isn't decoration, it's judgment. Every line is anchored to a specific spot in the source, so three months later you can return to the original context.
Distilled · a conclusion to keep
Your articles, annotations, discussions and API keys are all kept on your own computer. We never upload your reading data to any cloud.
Distilled · a conclusion to keep
Companions don't read for you — they read with you. Six perspectives ask, dig, translate and edit, but the final judgment always stays with you.

What it is

Yomitomo shrinks the smallest unit of reading from the article to the judgment.

Most tools only let you "save" articles. None help you think them through. Yomitomo flips it: save less, turn what you read into judgments of your own.

Line

Draw a line where a paragraph makes you pause. It's not a highlight, it's an evidence anchor—precise to the sentence, always traceable back to the source.

Thought

Write a judgment or question under the line, or invite an AI companion to join. One line can carry many thoughts, growing over time.

Distill

When the discussion is rich enough, distill it into a conclusion worth keeping—carrying its source and your angle.

Six AI companions

They don't read for you—they read with you.

Six perspectives question, dig deeper, translate and edit, but the final judgment always stays yours.
You can choose who joins each line, or mute them all.

Margin reading companion June Hartley
June Hartley
Margin reading companion
Questioner Maya Brooks
Maya Brooks
Questioner
Insight editor Marcus Reed
Marcus Reed
Insight editor
Root-cause reviewer Gideon Frost
Gideon Frost
Root-cause reviewer
Concept translator Iris Chen
Iris Chen
Concept translator
Structure navigator Daniel Park
Daniel Park
Structure navigator

Local-first

Articles, annotations, discussions and API keys all live on your computer. We never upload your reading data to any cloud.

Open & free

Yomitomo is completely free and open source under the MIT license. It never pushes to you, never reorders for you, and never sells your reading.

Many sources, one desk

Content from different sources—your lines and discussions all land on the same workbench, and synced notes keep their original anchors.

Web articlesPDFEPUBWeRead

FAQ

Questions before you download.

What is Yomitomo?

Yomitomo is a local-first AI reading companion for macOS and Windows. You highlight text, capture thoughts, and discuss with AI assistants—keeping every reading judgment anchored to the source, with reading data stored locally.

What sources does Yomitomo support?

Yomitomo supports web articles, PDF, EPUB, and WeRead. Content, highlights, and discussions from every source land on one workbench, and synced notes keep their original anchors.

Is my reading data uploaded to the cloud?

No. Your articles, annotations, discussions, and API keys all stay on your own computer. Yomitomo never uploads any of your reading data to the cloud.

Is Yomitomo free?

Yes. Yomitomo is completely free and open source under the MIT license. It never pushes content, never reorders your reading, and never sells your data.

Do the AI companions read for me?

No. Yomitomo offers six AI companions that question, dig deeper, translate, and edit. They read with you, but the final judgment always stays yours.

Do I need an API key to use Yomitomo?

Yes. AI features use your own LLM API key, which is stored securely on your local system and used only to call AI assistants on your device.

v0.14.0 · Available now

Download Yomitomo,
and start keeping what you read.

Completely free, open source, with reading data stored locally.
Available for macOS and Windows.