Kindle Book Sender

A calmer bridge to your Kindle

Books, not setup.

Send PDFs, EPUBs, and documents to your KOReader Kindle without learning command lines, addresses, or file paths.

Download the app See how it works

Free and open source. No account. Your books stay on your network.

Kindle Book Sender LOCAL & PRIVATE

Your Kindle is ready.

We found KOReader on your local network.

Kindle Paperwhite Found on Wi-Fi
Ready to send
Choose books PDF · EPUB · MOBI · DOCX · TXT
Private by design
One-time USB pairing
Automatic Wi-Fi discovery
Windows · macOS · Linux

Three quiet steps

Install once. Send in seconds.

The app handles discovery, pairing, and the right KOReader folder so you can focus on the book.

01

Download the installer

Choose the version for your computer. There is no account to create.

02

Open and pair

Connect the Kindle once by USB. The app securely prepares future Wi-Fi transfers.

03

Drop and read

Select one book or a whole shelf. Files arrive in KOReader ready to open.

Small details, handled

Made for the handoff, not the headache.

Private by design

No cloud upload, tracking account, or remote library. Transfers stay between your computer and Kindle.

Automatic discovery

Finds your Kindle on the same Wi-Fi without asking you to understand IP addresses.

PDF and EPUB ready

Sends books directly to the folder KOReader expects, including large PDFs and mixed shelves.

Resilient transfer

Uses SFTP first and automatically falls back to SCP when a Kindle setup needs it.

Every desktop, one rhythm

The same calm workflow on Windows, Apple silicon and Intel Macs, and x86_64 Linux.

Desktop downloads

Choose your computer.

One focused app, packaged for the desktop you already use.

Recommended for you

Windows

Windows 10 or 11 · x64 installer

Download

macOS Apple silicon

M1, M2, M3, and M4 Macs

Download

Linux

Ubuntu and compatible · x86_64

Download
v1.0.0

Stable release · July 2026

Before your first send

  1. Put the computer and Kindle on the same Wi-Fi.
  2. Open KOReader and start its SSH server.
  3. If discovery needs help, connect USB once and let the app pair securely.
Release notes and checksums

Keep the field guide

The whole setup, beautifully explained.

Printable handoff guides cover sending books, PDF reflow, screen rotation, SSH access, and returning to the original Kindle interface.

FIELD GUIDE Kindle
+ KOReader English · PDF Kindle + KOReader Handoff Guide A friendly reference for readers and helpers. Open guide 使用手册 Kindle
+ KOReader 简体中文 · PDF Kindle + KOReader 中文交接手册 面向普通读者的完整中文说明。 Open guide

Good to know

Questions, answered plainly.

Does this upload my books anywhere?

No. The app talks directly to your Kindle over USB or your local Wi-Fi. It does not require a cloud service or account.

Why does KOReader SSH need to be running?

It gives the sender a secure local path into the Kindle. Start it from KOReader before sending over Wi-Fi.

What if the app cannot find my Kindle?

Confirm both devices use the same Wi-Fi and that KOReader SSH is on. USB pairing can teach the app the correct device safely.

Can I return to the normal Kindle interface?

Yes. Exit KOReader from its menu. The handoff guides also explain the safe recovery path and the important disable folder.