Your books are talking to each other. Start listening.
Inkstream syncs with your e-reader and reads along in your margin. Your highlights become threads, the names in your books become people, and your shelf starts telling you what it means, and what to read next.
Free during beta · already years into your e-reader? Your existing reading history and highlights come along — your shelf starts full, not empty
Systems beat willpower
Attention under siege
Stories that rule us
Works with KOReader — on Kindle, Kobo, PocketBook, Boox and more — and even without installing anything: every Kindle, Kobo and reMarkable can simply email its highlights in. See the setup guide
How it works
You just read. Inkstream does the remembering.
1
Read anywhere
Open a book on your e-reader. The Inkstream plugin notices, syncs your highlights, notes and sessions, and fetches the book's world: its sources, its thinkers, its ideas.
2
Your margin becomes a library
Every highlight keeps its page and its surrounding paragraphs. Every note keeps your voice. Even the words you looked up are kept, like slips in a dictionary.
3
The shelf starts talking
Inkstream finds the threads that run through your books, introduces you to the minds behind them, and tells you what to read next, with the reason attached.
Every way in
Your library is bigger than your e-reader. Bring all of it.
⌁
The plugin, once
A 20-minute, fully reversible install of KOReader with the Inkstream plugin. From then on it keeps itself up to date over the air — and your reading history from before Inkstream is imported too.
✉
Or just email
No install at all: every Kindle, Kobo and reMarkable has an official "send by email" button. You get your own Inkstream address; anything you send lands straight in your margin.
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Your Goodreads years
Drop your Goodreads export on the settings page and the books you finished over the years join your shelf — ratings, dates and to-read list included. You see the plan first; one click brings it in, one click undoes it.
Threads across your books
Marcus Aurelius and James Clear are having the same argument.
Two thousand years apart, a Roman emperor and a habit scientist keep circling one idea: character is a practice, not a trait. You highlighted both. Inkstream noticed, and laid the quotes side by side.
Threads grow as you read. Orwell meets Huxley in your margin, Kahneman argues with Taleb, and your notes join the conversation in gold. Every thread can be shared: one link gives a friend the whole conversation between your books — readable as an essay, exportable as Markdown, without exposing anything else on your shelf.
"You have power over your mind, not outside events. Realize this, and you will find strength."
MeditationsMeditations · Marcus Aurelius · 180 AD
"You do not rise to the level of your goals. You fall to the level of your systems."
Atomic HabitsAtomic Habits · James Clear · 2018
"The emperor calls it the ruling faculty. The scientist calls it a system. Your thread calls it the same discovery, made twice."
"Who controls the past controls the future: who controls the present controls the past."
1984Nineteen Eighty-Four · George Orwell · p. 37 · with your note
Your noteHarari says the same thing softly: whoever writes the shared story rules. Orwell just removes the smile.
Looked up
chimerical
wildly fanciful; existing only as the product of imagination.
while reading Frankenstein · Mary Shelley
Your margin, kept
Every highlight keeps its page, its context, and your voice.
No more orphaned quotes in an export file. Each highlight lives inside its surrounding paragraphs, your notes sit beside the author's words, and even the words you stopped to look up are kept like slips in a dictionary.
Search runs through the passages and your own notes. Type "control" and find Orwell, Harari, and yourself. Each looked-up word comes back with its real definition, traced to the root word.
The minds behind the books
Meet the company your books keep.
Every book leans on other minds. Inkstream reads the citations and introduces them properly: a cast list per book, a dossier per thinker, and the passage where they enter. Click Darwin in Sapiens and see exactly what Harari borrowed.
Recurring guests get a page of their own. When Darwin shows up in your third book, Inkstream connects all three appearances.
Dramatis Personæ
Sapiens · Yuval Noah Harari · leading voices
CD
Charles Darwin
the man who moved us off the pedestal
7×
AS
Adam Smith
the invisible hand in the wheat field
4×
JJ
Jared Diamond
guns, germs and the shoulders Harari stands on
3×
Read next, with the reason attached
Never wonder what to read after the last page.
Every recommendation states its evidence: your highlights, the book's own citations, or the minds it leans on. No algorithmic mystery, just the trail you were already following. And when you finish, the book closes properly: a report of the weeks it took and everything you kept, threads that ran to the last page waiting for your conclusion — and a book report you can share.
The Black SwanTaleb
The Black Swan
Nassim Nicholas Taleb
Because Kahneman's sparring partner deserves the other side of your 14 highlights on overconfidence.
CirceMiller
Circe
Madeline Miller
The same sea as your Odyssey, told from the island. You marked every scene on Aiaia.
Amusing Ourselves to DeathPostman
Amusing Ourselves to Death
Neil Postman
The famous verdict on your Orwell and your Huxley: which dystopia actually arrived.
A shelf that feels like a shelf
Turn a book over, like you would in a bookshop.
Covers stand on real shelves. Flip one and the back cover carries the blurb, plus what no bookshop can print: your own margin.
The Great GatsbyF. Scott Fitzgerald
Back cover
A meditation on longing, money and the green light at the end of the dock.
From your margin
"So we beat on, boats against the current, borne back ceaselessly into the past."
DuneFrank Herbert
Back cover
Ecology, prophecy and power on a planet that gives nothing away for free.
From your margin
"Fear is the mind-killer." Marked twice. You know why.
MeditationsMarcus Aurelius
Back cover
The private notebook of a Roman emperor, never meant to be published. Luckily it was.
On your shelf
Read twice. 31 highlights. Feeds your oldest thread.
Connections
The sky above your shelf.
The thinkers who keep returning across your library become stars above your books. Select one, and the shelf answers: the books they run through light up.
Get started
You've been building a library for years. Time it started giving back.
Free during beta. Your margin stays yours: private by default, exportable always, deletable in one click.