Which ebook reader has the best EPUB support?

Kobo has the best native EPUB support — it reads EPUB 2, EPUB 3, and Adobe DRM EPUBs directly via USB sideloading with no conversion. Kindle added EPUB support in 2022 but requires Send to Kindle (no USB). Nook also reads EPUB natively via USB. Onyx Boox runs Android apps, so any EPUB reader app works.

Can I put my own EPUB files on a Kindle?

Yes, since 2022. Use Send to Kindle (send.amazon.com), the Send to Kindle iOS/Android app, or email to your Kindle address. Amazon converts the EPUB to its internal format and delivers it to your device over Wi-Fi. USB sideloading of EPUB is not supported on Kindle — you must use Send to Kindle.

What is the best ebook reader for library books?

Kobo is the best for library borrowing. It integrates directly with OverDrive and Libby — borrow a book in the Libby app and it syncs to your Kobo automatically. Kindle supports OverDrive borrowing but only for titles available in Kindle format. Nook supports OverDrive with Adobe DRM authorization. All three are roughly equal for most library catalogs.

Is Kindle or Kobo better for reading PDFs?

Neither renders PDFs well — both display them as fixed-layout images without text reflow. The better approach is to convert PDFs to EPUB using toolkit.bot/pdf2epub (free, 30 seconds), then send the EPUB to your device. For Kobo, copy via USB. For Kindle, use Send to Kindle. The EPUB gives you adjustable font size and reflowing text on either device.

Best Ebook Reader Devices in 2026: Kindle vs Kobo vs Nook vs Onyx Boox

Dedicated e-readers are better for long reading sessions than phones and tablets: the e-ink screen eliminates eye strain, the battery lasts weeks, and they're lighter. But each brand handles EPUB files differently. Here's the 2026 comparison for readers who care about EPUB support.

Quick Comparison

Device	Native EPUB	Library support	Price range
Kindle	Yes (since 2022)	OverDrive (Kindle format)	$100–$350
Kobo	Yes (native, best)	OverDrive/Libby direct	$120–$400
Nook	Yes (native)	OverDrive (Adobe DRM)	$120–$250
Onyx Boox	Yes (Android apps)	Any Android library app	$200–$700

Kindle (Amazon)

Best for: Amazon ecosystem users, people who buy ebooks from the Kindle store.

Kindle added native EPUB support in September 2022. You can now send EPUB files via Send to Kindle (website or app) and they appear in your Kindle library. Amazon converts EPUB internally to KFX format. Kindle's store has the largest English-language ebook catalog. The Paperwhite (7th gen, 2024) is the best value at around $140.

EPUB limitation: No USB sideloading of EPUB — you must use Send to Kindle. Kindle store books use Amazon DRM, not EPUB. Library integration requires OverDrive's Kindle format (not always available).

Kobo (Rakuten)

Best for: EPUB-first readers, library borrowers, people outside the Amazon ecosystem.

Kobo has the best native EPUB support of any e-reader. EPUB files sideload directly via USB — no conversion, no account needed. Kobo integrates directly with OverDrive/Libby for one-tap library borrowing. The Kobo Clara BW (2024) is the best value at around $130; the Kobo Elipsa 2E is excellent for note-taking.

EPUB advantage: Reads EPUB 2, EPUB 3, and EPUB with Adobe DRM natively. The widest format compatibility of any mainstream e-reader.

Nook (Barnes & Noble)

Best for: B&N store customers, US-based library readers who prefer a simpler device.

Nook reads EPUB natively via USB sideloading — the same as Kobo. The GlowLight 4 (2022) is the current flagship. Nook's store catalog is smaller than Kindle or Kobo. Library borrowing via OverDrive works with Adobe DRM authorization.

EPUB limitation: Nook's ecosystem is primarily US-focused. Less software development attention than Kindle or Kobo.

Onyx Boox

Best for: Power users who want Android apps on an e-ink device.

Boox devices run a full Android environment — you can install any Android reading app (Kindle, Kobo, Moon+ Reader, Libby) and read EPUBs from any source. Excellent for people who want maximum flexibility. More expensive and more complex than the other options.

Which Device Is Best for PDF-to-EPUB Reading?

If you frequently convert PDFs to EPUB for reading on a dedicated device:

Kobo is the easiest: convert at toolkit.bot, copy the .epub via USB, done. No account, no Send to Kindle step.
Kindle requires the extra Send to Kindle step but works well once set up.
Nook is as easy as Kobo for USB sideloading.

Ready to put your PDFs on your e-reader? Convert to EPUB in 30 seconds — works on Kobo, Kindle, Nook, and every other device.

Convert PDF to EPUB →