iformat.io
Convert MOBI to EPUB online for free.
Tamaño máximo de archivo 10 MB. Regístrate para más.
| Nombre de archivo | Tamaño | Convertir a |
|---|
Comprobación de archivos y formatos de salida seleccionados.
| Nombre de archivo | Tamaño de archivo | Descargar |
|---|
A 500 KB MOBI typically becomes 500 – 600 KB as EPUB.
Calidad: Chapter structure and text preserved cleanly. Kindle-specific formatting (page-numbering, X-Ray data) is lost.
Best for: reading on non-Kindle devices — Apple Books, Kobo, Nook, Google Play Books all support EPUB natively.
Avoid when: you only read on Kindle — MOBI/AZW3 is the native Kindle format.
Tip: Modern Kindles (post-2022) also support EPUB via Send-to-Kindle, so this conversion is increasingly optional.
EPUB is the open ebook standard — reflows text, supports tables of contents and metadata, works on every e-reader except Kindle (which uses MOBI/AZW3 natively but converts EPUB on upload). Convert to EPUB when publishing to Apple Books, Kobo, Google Play Books, or shipping direct-to-reader PDFs / DOCX manuscripts.
Chapter breaks, table of contents, cover art, and metadata all survive the trip. Reading experience stays intact on the destination device.
Most ebooks are small — a typical novel is 1-3 MB, well within the free-tier 10 MB cap. Illustrated books, textbooks, or older archives can be larger. Batch conversions of up to 20 files are handy for cleaning up a whole library in one pass.
Ebook conversions have far fewer settings than image or video work. The tool preserves structure and metadata automatically. Where a knob matters — a specific font size preference, an override for how the cover embeds — the tool page calls it out with a one-line note.
La salida está lista en unos segundos. Mueva el archivo a su lector: Books.app en iPhone/iPad, Send-to-Kindle para dispositivos Amazon o colóquelo directamente en Calibre para obtener un flujo de trabajo completo de la biblioteca. Tanto el archivo fuente como el convertido se eliminan permanentemente de nuestros servidores en 30 minutos.
Text content, chapter breaks, table of contents, inline images, italics/bold, paragraph structure, and metadata (title, author, cover art) all carry through. Custom fonts substitute to the reader's default unless the target format explicitly supports embedded fonts. Drop caps and other typographic flourishes often simplify. For most novels and non-fiction, the result reads identically to the source; for layout-heavy books, expect a plainer presentation.
Six specific reasons ebook conversions actually happen — none of them "just because."
Bought a Kobo after years of Kindle? Moving from Apple Books to a Boox? Your existing library needs EPUB to work on the new device. Batch conversion means the switch takes minutes instead of one book at a time.
Project Gutenberg, Standard Ebooks, and open archives typically publish MOBI. Converting to EPUB makes the file the exact format your target reader prefers, which usually means better default formatting and cleaner chapter navigation.
Decade-old libraries usually mix LIT, FB2, MOBI, PDB, and other legacy formats — each one supported by fewer and fewer readers as time passes. Converting everything to EPUB once gives you a single archival format that every current e-reader can open.
Writers and self-publishers often need multiple formats: EPUB for most stores, AZW3 for Kindle Direct Publishing. Converting between them is a normal step in the publishing pipeline — no need to re-export from your source Word file each time.
Screen readers, text-to-speech apps, and reading-assistance tools have preferred input formats. Converting to EPUB at the tool's expected format usually gives cleaner navigation, better voice synthesis, and easier position tracking within the book.
Some downloaded ebooks arrive with broken chapter markers, corrupted metadata, or missing cover art. Converting through EPUB and then back to your preferred format often rebuilds the structure cleanly — a full round-trip fix without any manual editing.
Comparación técnica de los dos formatos: útil para decidir cuál usar o para confirmar qué cambia durante la conversión.
| Propiedad | MOBI | EPUB |
|---|---|---|
| nombre completo | Mobipocket eBook | Electronic Publication |
| Año de introducción | 2000 | 2007 |
| Desarrollador/cuerpo estándar | Mobipocket / Amazon | W3C (formerly IDPF) |
| tipo MIME | application/x-mobipocket-ebook | application/epub+zip |
| Extensión de archivo | .mobi | .epub |
| Compresión | PalmDOC compression | ZIP-compressed XHTML + CSS |
| Color/profundidad de datos | N / A | N / A |
| Dimensiones máximas/tamaño | Software-limited | Software-limited |
| Transparencia | No | No |
| Animación | No | No |
| Estándar / especificación | Mobipocket | W3C EPUB 3.3 / ISO/IEC 23736 |
| Lo mejor para | Older Kindle devices (replaced by AZW3 then KFX) | Apple Books, Kobo, Nook, Google Play Books — reflowable text |
MOBI is an ebook format originally developed by Mobipocket SA and later acquired by Amazon in 2005 for use on Kindle devices. Based on the Open eBook standard with proprietary extensions, MOBI supports reflowable content, bookmarks, annotations, and basic formatting including images, tables, and text styles. It became the primary format for personal documents and sideloaded content on Kindle eReaders, working on every Kindle model ever produced.
Amazon has since deprecated MOBI in favor of the more capable AZW3 (KF8) and KFX formats, which support enhanced typesetting, embedded fonts, and responsive layouts. As of 2022, Amazon's Send to Kindle service no longer accepts MOBI files for email delivery. However, MOBI remains widely used for legacy Kindle compatibility and is still supported by many third-party reading apps. Converting MOBI to EPUB allows reading on non-Kindle devices, while converting to AZW3 provides a modern Kindle reading experience.