How to Send an EPUB to Your Kindle — All Methods (2026)

June 12, 2026  ·  7 min read

Since 2022, Kindle natively supports EPUB files — you no longer need to convert EPUB to MOBI before sending. This guide covers all five methods to get an EPUB onto your Kindle in 2026.

Method 1: Send to Kindle email

Every Kindle device has a unique @kindle.com email address. Send an email with your EPUB attached to this address and it appears in your Kindle library.

1. Find your Kindle's email address: go to amazon.com → Account → Manage Content and Devices → Devices → select your Kindle → Device Options → Personalize your Kindle → Send-to-Kindle Email.
2. Add your personal email address to the approved senders list in Manage Content and Devices → Preferences → Personal Document Settings → Approved Personal Document Email List.
3. Send an email from your approved address with the EPUB attached to yourname@kindle.com.
4. The file appears in your Kindle library within a few minutes (requires Wi-Fi on the Kindle).

File size limit: 50 MB per email attachment.

Subject line: Leave blank or write anything — it doesn't matter.

Method 2: Send to Kindle app (desktop)

Amazon's free Send to Kindle desktop app (Windows and macOS) lets you right-click any EPUB file and send it directly to your Kindle library.

1. Download and install the Send to Kindle app from amazon.com/sendtokindle.
2. Sign in with your Amazon account.
3. Right-click any EPUB file → Send to Kindle → select your device.
4. The file syncs to your Kindle via Wi-Fi.

This is the fastest method for desktop users — no email required.

Method 3: Send to Kindle web

Amazon also offers a web-based Send to Kindle at send.amazon.com.

1. Go to send.amazon.com in any browser (including on your phone).
2. Sign in with your Amazon account.
3. Click Upload → select your EPUB file.
4. Choose which Kindle device or app to send it to.
5. Click Send — the file appears in your library within minutes.

This method works from any device without installing software. Useful for sending EPUBs from a phone or a computer where you can't install the desktop app.

Method 4: USB cable

Connect your Kindle to a computer via USB — it mounts as a drive. Copy the EPUB file directly to the documents/ folder.

1. Connect Kindle to computer with a USB cable.
2. Unlock the Kindle and tap "Allow" if prompted to trust the computer.
3. Open the Kindle drive in Finder (Mac) or File Explorer (Windows).
4. Copy your EPUB file into the documents/ folder.
5. Eject the Kindle safely and disconnect.
6. The EPUB appears in the Kindle library immediately — no Wi-Fi needed.

Advantage: Works without internet. No file size limits (limited only by Kindle storage). Files appear instantly.

Note: Files transferred via USB appear in "My Library" but are not backed up to Amazon's cloud — they won't be available if you set up a new Kindle.

Method 5: Calibre wireless transfer

Calibre's Kindle plugin and wireless transfer feature sends books from your Calibre library directly to your Kindle over Wi-Fi.

1. Install Calibre and add your EPUB to the library.
2. In Calibre, go to Preferences → Sharing → Sharing over the net → Enable sharing.
3. On your Kindle, go to Settings → Your Account → Calibre (if using the Calibre Content Server).
4. Alternatively: connect Kindle via USB, select the book in Calibre, click "Send to device" button in the toolbar.

Calibre can also convert EPUB to MOBI for older Kindle models that don't support EPUB natively (pre-2022 firmware).

Method comparison

FAQ

Does Kindle support EPUB natively?

Yes, since a firmware update in late 2022. All Kindle devices running firmware 5.13.7 or later can open EPUB files directly — no conversion required. Older firmware requires MOBI/AZW format. Update your Kindle via Settings → Device Options → Advanced Options → Update Your Kindle.

What happens to my EPUB when I send it to Kindle?

Amazon's Send to Kindle service converts your EPUB to Amazon's KFX format server-side. The converted file is stored in your Amazon account and delivered to your Kindle. For USB transfer, recent Kindle firmware reads the EPUB directly without conversion.

Can I send an EPUB converted from PDF to Kindle?

Yes. Convert your PDF to EPUB at toolkit.bot, then use any of the five methods above. The resulting EPUB reads correctly on all Kindle models with current firmware.

What's the best method for large EPUB files?

USB cable — no file size limit and no internet required. For files under 50 MB, any cloud method (email, web, desktop app) works fine.