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For people who read to learn

Read deeply. Keep what you learn.

Xandria is a quiet workspace for books and papers. Read, highlight, write and connect ideas in one place, then find any passage again in seconds.

Read the GuideExplore Features

Closed beta for Windows, macOS and Linux · About the beta

How it works

Home: Physics ready to resume at page 280, then Continue Reading with The Origin of Species, The Voyage of the Beagle, Physiology and Flying Machines Today, Recent Notes with four notebooks, and Read Later.Home: Physics ready to resume at page 280, then Continue Reading with The Origin of Species, The Voyage of the Beagle, Physiology and Flying Machines Today, Recent Notes with four notebooks, and Read Later.
The Library showing Books with their covers, the ones being read first, with Books, Papers, Authors and Series in the sidebar.The Library showing Books with their covers, the ones being read first, with Books, Papers, Authors and Series in the sidebar.
Search for momentum: Physics as the best match, matching books, passages inside them, highlights and notes, and a reading list and a collection.Search for momentum: Physics as the best match, matching books, passages inside them, highlights and notes, and a reading list and a collection.
Physics, a PDF, open at the spinning ice skater beside The Origin of Species, an EPUB, in two panes.Physics, a PDF, open at the spinning ice skater beside The Origin of Species, an EPUB, in two panes.
Physics at page 280 with a highlighted sentence, beside its notebook: highlights in reading order, each with a note and a link back to its page.Physics at page 280 with a highlighted sentence, beside its notebook: highlights in reading order, each with a note and a link back to its page.
A Canvas board with frames for static stability and evidence, quote cards from Robotics and two papers, and labelled connections.A Canvas board with frames for static stability and evidence, quote cards from Robotics and two papers, and labelled connections.
The Origin of Species open at Variation Under Nature beside a real Agent answer recommending related passages in The Voyage of the Beagle and Walden, with links to the books.The Origin of Species open at Variation Under Nature beside a real Agent answer recommending related passages in The Voyage of the Beagle and Walden, with links to the books.
Collections beside Reading Lists: a tree of six collections with Legged locomotion opened, and the list Locomotion: start here.Collections beside Reading Lists: a tree of six collections with Legged locomotion opened, and the list Locomotion: start here.

Home opens on what you are reading, ready to resume at your page, with your notes and what comes next below. Learn how

  • Works without an account
  • Works offline
  • Your files stay untouched
  • No tracking
  • Private by default

Everything around it

Quietly capable, wherever you need it.

01Formats

Every format. One library.

Textbooks, papers, scanned books and comics open in one reader, with your originals left exactly as they are.

  • PDF
  • EPUB
  • DjVu
  • CBZ
  • CBR
Supported formats
The Library showing Books, recently opened first: Physics, The Origin of Species, The Voyage of the Beagle and Physiology with their covers, with Books, Papers, Authors and Series in the sidebar.The Library showing Books, recently opened first: Physics, The Origin of Species, The Voyage of the Beagle and Physiology with their covers, with Books, Papers, Authors and Series in the sidebar.

02Every device

Your place follows you.

Start on one computer, no account needed. Turn on sync and your reading position, highlights, notes and boards follow you to every computer you use. Download a book and keep reading and writing offline.

Coming soon to Android, iPhone and iPad

Work across devicesXandria on mobile
Home on the desktop: a physics textbook ready to resume at page 280, with the books being read below.Home on the desktop: a physics textbook ready to resume at page 280, with the books being read below.
Xandria on Android: Home with the same physics textbook ready to resume.Xandria on Android: Home with the same physics textbook ready to resume.

03AI

Think with AI, from your own books.

Ask a question and get an answer from your own books, naming the pages it used. Let the Agent draft a note or build a board, and approve each change before it is saved.

  • Ollama
  • OpenAI-compatible
  • Codex CLI
  • OpenCode CLI
  • MCP

Use the model you choose, including local ones. Conversations stay on your computer, and nothing changes without your approval.

How AI works
The Agent beside Physics: a question about why a skater spins faster, answered from the book with links to the pages it used.The Agent beside Physics: a question about why a skater spins faster, answered from the book with links to the pages it used.
  • A quote card: the center of gravity has to remain inside the rectangle formed by the four wheels, from Robotics, page 210.A quote card: the center of gravity has to remain inside the rectangle formed by the four wheels, from Robotics, page 210.

    Quotes that remember their page.

    A quote on a board keeps its book and page, and opens the source right there.

    Canvas cards
  • Two quote cards from papers joined by a connection labelled both measure gait.Two quote cards from papers joined by a connection labelled both measure gait.

    Connections that say why.

    Label the line between two ideas, so the board explains itself next time.

    Connections
  • Reading Lists: Read Later and a list called Locomotion: start here.Reading Lists: Read Later and a list called Locomotion: start here.

    A plan for what comes next.

    Read Later for anything that catches your eye, and ordered lists for courses and projects.

    Reading lists

“The perusal of all excellent books is, as it were, to interview with the noblest men of past ages, who have written them … in which are discovered to us only their choicest thoughts.”

René Descartes, Discourse on the Method, translated by John Veitch

Workflows

What people do with Xandria.

Study a textbook chapter

Highlight as you read, write your summary beside it, and return to any page at exam time.

Read the workflow

Write a literature review

Compare papers on a board, then write a review where every claim links to its passage.

Read the workflow

Research a question with AI

Ask your library, check the pages it names, and keep what you find in a note.

Read the workflow

Organize with Collections

One place per course or project, filling itself as you add books and papers.

Read the workflow

Individuals & Teams

The same workspace, whether you read alone or together.

Individual

Your library and your thinking, in one place.

  • A library of books, papers and documents
  • PDF, EPUB, DjVu and comics that resume where you stopped
  • Highlights, Notes and Canvas
  • Domains, Collections and reading lists
  • Search by keyword and by meaning
  • AI with the model you choose

Teams

Everything in Individual, plus a library you share.

  • One shared library for the whole team
  • Share Notes and Canvas with view or edit access
  • Personal reading, highlights and notebooks stay private

About the beta

Xandria is in a closed beta on Windows, macOS and Linux.

Places are by invitation. An invitation includes the download link; start on your computer without an account, and turn on sync when you want your library everywhere. The guide takes you from installing to your first notebook.

How to install

Themes

A reading room that suits the hour.

Stone by day, Basalt at night. Try them on this page, and on the app below.

Xandria's Library, books with their covers, in the Stone theme.

Your library. Your reading. Your work.

Read the Guide