3 articles in this topic.
If you are an avid reader or self-published author, the biggest hurdle is often format compatibility. The short answer is: **Kindle users should use AZW3**, while **Kobo and other e-readers prefer EPUB**. MOBI is outdated for new devices. Use tools like [bookconv.com](/convert) or Calibre to convert your files instantly. For the head-to-head of the two formats themselves, see our [EPUB vs MOBI comparison](/blog/epub-vs-mobi).
Struggling with older ebook files that won't open on modern devices? Understanding **Lit format conversion** is the key to preserving your digital library. Whether you are dealing with legacy .lit files or need to update them for today's readers, converting your ebooks ensures compatibility without losing your cherished content.
Confused by endless conversion options? You need a smart selector and an intercept point that works. BookConv delivers fast, free, no-signup ebook conversion for EPUB, MOBI, AZW3, and PDF—keeping your reading uninterrupted.