Now on Windows, Android, Linux and the web

Every book you own.
One library, every device.

Read any file, from PDFs and EPUBs to Word and comics. Listen like an audiobook. Then continue on any device, at the same line.

Free. All downloads

Windows 10 & 11 Android 7 and up Any modern browser PDF · EPUB · Word · Excel · PowerPoint · Markdown · Images · Code · Comics
Every format

Open anything. It opens as itself.

Word documents as pages, spreadsheets as sheets, slides at their own layout, Markdown with its maths typeset, notebooks with their plots, code with its colours, comics a page at a time or as one long scrolling strip for webtoons and manhwa. Nothing is converted on the way in and nothing is uploaded to read it, so a file opens the instant you tap it, even offline.

No conversion, no waiting Works offline Find and zoom in every file "Open with" on Windows and Android
PDFEPUBBooks, with everything you mark
Highlights, notes, bookmarks and your place, synced to every device.
DOCXWord documents
Headings, lists, tables, pictures and links, laid out as the page it was written on.
growth 2 / 5
Quarterly Report
XLSXExcel workbooks
Every sheet, frozen rows and Excel's own number formats.
ABCDE
1RegionQ1Q2GrowthDate
2North$12,480$15,90227.4%1/4/2026
3South$9,315$10,0447.8%1/4/2026
SalesCostsNotes
PPTXPowerPoint decks
Every slide at its own layout, with the deck's colours, pictures and tables.
Q3 in review
4 / 18
IMGPictures, scans and SVG
250%
MDMarkdown and LaTeX
Notes
E = mc2  ·  Σxn
CSVTables
name,qty,price
apples,12,"1,200"
pears,7,640
plums,31,"2,050"
CODE70 languages
1def greet(name):
2 # read as itself
3 return f"hi {name}"
4print(greet("you"))
IPYNBJupyter notebooks
Markdown cells, coloured code, and the outputs and plots it saved.
In [3]:import pandas as pd; df.plot.bar()
CBZComics
7 / 212
+And the rest
Each shown as itself, its source a tap away where it has one.
HTMLSaved web pages FB2FictionBook e-books EMLSaved emails SVGVector pictures TEXLaTeX source DOCKERDockerfiles and .env TXTText, logs, reStructuredText, Org
.pdf.epub.docx.xlsx.pptx.md.jpg.png.txt.csv.ipynb.html.py.js.json.svg.cbz.tex.text.log.rst.org.adoc.asciidoc.eml.mjs.jsx.ts.tsx.java.kt.kts.c.h.cpp.cc.hpp.cs.go.rs.rb.php.swift.dart.scala.lua.r.pl.hs.ex.exs.sh.bash.zsh.ps1.bat.sql.yaml.yml.toml.ini.xml.css.scss.less.styl.htm.xhtml.vue.svelte.fb2.sty.gradle.groovyDockerfileMakefile.mk.cmake.env.properties.cfg.conf.jsonc.jl.nim.nix.elm.erl.clj.cljs.fs.fsx.ml.proto.graphql.gql.vim.coffee.pas.vb.f90.sv.vhd.asm.tcl.cr.diff.patch.awk.glsl.wat.lisp.scm.rkt.hbs.twig.erb.haml.markdown.mdx.tsv.jpeg.webp.gif.bmp.tif.tiff.cbt.pdf.epub.docx.xlsx.pptx.md.jpg.png.txt.csv.ipynb.html.py.js.json.svg.cbz.tex.text.log.rst.org.adoc.asciidoc.eml.mjs.jsx.ts.tsx.java.kt.kts.c.h.cpp.cc.hpp.cs.go.rs.rb.php.swift.dart.scala.lua.r.pl.hs.ex.exs.sh.bash.zsh.ps1.bat.sql.yaml.yml.toml.ini.xml.css.scss.less.styl.htm.xhtml.vue.svelte.fb2.sty.gradle.groovyDockerfileMakefile.mk.cmake.env.properties.cfg.conf.jsonc.jl.nim.nix.elm.erl.clj.cljs.fs.fsx.ml.proto.graphql.gql.vim.coffee.pas.vb.f90.sv.vhd.asm.tcl.cr.diff.patch.awk.glsl.wat.lisp.scm.rkt.hbs.twig.erb.haml.markdown.mdx.tsv.jpeg.webp.gif.bmp.tif.tiff.cbt
What it does

A reader that remembers everything.

Built for people with a few hundred PDFs and a phone, a laptop, and a browser tab they keep losing books between.

Your place follows you

Reading position, highlights, notes and bookmarks sync across devices. Offline, it keeps them on the device and sends them when you're back online.

Tabs, like a browser

Keep several books open and switch instantly. "Open with" from Explorer drops a book into a new tab.

PDF and real EPUB

EPUBs reflow as ebooks, with chapters and adjustable type. They aren't flattened into PDFs.

Notion to book

Paste a Notion link and get a typeset PDF, subpages and all. Import it again later to pull in your latest edits.

Edit Arena

Reorder, rotate, crop, merge and split pages. Every edit is a new version, so you can always go back.

Friends and shared shelves

Send a book to a friend, see what they're reading, and keep private shelves private.

Seven reading themes

Paper, Sepia, Ink, Midnight and more. Page tints for night reading, focus mode, middle-click autoscroll and find in the toolbar.

Listen like an audiobook

Any PDF or EPUB, read aloud. Download natural voices that work with no internet, pick a mood like Thriller, Horror, Calm or Study, and follow along word by word with a sleep timer and background play. Scanned pages can be read too.

Read together

Book clubs, without the spoilers.

Start a club with friends or join a public one. Read the same books, see where everyone is, and talk chapter by chapter. Nothing past your page is ever shown to you.

Many books, in order

A club reads one book now, lines up the next, and keeps the finished ones. Series stay together, from book one to seven, each with its own talk.

Spoiler-safe by design

Tell the club how far you've read. Chapters, posts and reactions past that point stay locked until you get there.

Chat by chapter

A room for the whole club, for each series, for each book and for every chapter. React to the chapters that wrecked you.

Debate, don't just comment

Hot takes, theories that get settled, character vs character, book vs book. Vote, argue a side, switch if you're convinced.

Everyone's highlights, if you want them

Members' highlights and notes gather in one place. Your book stays clean, unless you choose to see everyone's colours or just a few people's.

Your reader card

Characters loved and hated, hot takes, favourite trope, reading personality and badges. Share it as a picture.

Private clubs share books only when their organisers confirm they have the right to, and can keep them inside the app. Public clubs share conversation, never files.

Download

Get SynKitab on every screen you read on.

Sign in once and your library is waiting in every one of them.

For this device

Windows

Installs once, no admin needed. Adds a Start-menu entry and "Open with SynKitab" for 60+ file types.

  • Windows 10 or 11, 64-bit
  • One small installer
  • Opens PDFs and 120+ formats from Explorer

Direct download (.exe)

Get it from the Microsoft Store
For this device

Android

Download the APK and open it. Android will ask you to allow installs from your browser the first time.

  • Android 7.0 or newer
  • A single APK
  • Opens 120+ file types from any app
Download the APK
For this device

Linux

Ubuntu, Arch and the rest. The AppImage runs on any 64-bit distro; the .deb installs properly on Ubuntu and Debian.

  • Ubuntu 24.04+, Debian 13, Fedora 39+, Arch
  • One portable file
  • Opens PDFs and EPUBs from your file manager

Get the .deb · How to install

Download the AppImage
For this device

Web

No install. The same library in any modern browser, on a borrowed computer or at work.

  • Chrome, Edge, Firefox, Safari
  • Your synced cloud library
  • Works on phones too
Open the web reader

All releases and changelog

About

Made for reading, not for scrolling past.

SynKitab started as a way to stop losing books between devices. It grew into a reader that typesets Notion pages, reflows EPUBs, lets you edit pages safely, and keeps your place across a phone, a PC and a browser.

"Kitab" is Arabic, Urdu and Hindi for book. The rest is sync.

Designed and built by Samiul Seikh · LinkedIn · GitHub

Your books stay yoursFiles on your device stay on your device unless you choose to sync them. Each account can only see its own library.
Your Notion token never leaves your deviceIt's sent with each conversion and never stored on the server.
Delete everything, any timeDeleting your account in Settings removes your books, notes and history from the server.
Works offlineDownloaded books open without a connection. Your place syncs when you're back online.

Pick up where you left off.

On whatever's in your hand.