HTMLZ vs MOBI
Um comparativo detalhado de HTMLZ eBook e Mobipocket eBook — tamanho de arquivo, qualidade, compatibilidade e qual escolher de acordo com seu fluxo de trabalho.
HTMLZ eBook
eBooksHTMLZ is a zipped HTML ebook format used by Calibre as a lossless intermediate representation. It packages HTML content, CSS stylesheets, and images into a single ZIP archive, preserving full formatting fidelity during ebook conversion chains.
Sobre os arquivos HTMLZMobipocket eBook
eBooksMOBI is the Mobipocket eBook format historically used by Amazon Kindle devices. While Amazon has moved to newer formats, MOBI remains relevant for older Kindles and legacy eBook libraries.
Sobre os arquivos MOBIComparativo de vantagens
HTMLZ Vantagens
- Simpler than EPUB.
- ZIP-of-HTML portability.
- Calibre-native.
MOBI Vantagens
- Universal Kindle support on every device ever released.
- Very small file sizes for text-heavy books.
- Mature tooling via Calibre and Amazon's KindleGen.
- Simple container structure — easy to parse.
Limitações
HTMLZ Limitações
- Niche — no reader support.
- Not a mainstream delivery format.
- Calibre-only.
MOBI Limitações
- Deprecated by Amazon for new uploads since 2022.
- Poor support for rich typography (drop caps, ligatures, fixed layout).
- No embedded fonts in the base format.
- Proprietary container discouraged use outside Kindle.
- Effectively a legacy format — new books go to AZW3/EPUB.
Especificações técnicas
| Especificação | HTMLZ | MOBI |
|---|---|---|
| MIME type | application/x-htmlz | application/x-mobipocket-ebook |
| Extension | .htmlz | .mobi, .prc (PalmDOC variant) |
| Container | ZIP + HTML | Palm Database (PDB) |
| Tool | Calibre | — |
| Markup | — | Compressed HTML subset |
| Successor | — | .azw, .azw3 (Kindle-specific) |
Tamanhos típicos de arquivo
HTMLZ
- Typical novel 300 KB - 2 MB
MOBI
- Text-only novel 200 KB - 1 MB
- Illustrated book 2-10 MB
Pronto para converter?
Converta entre HTMLZ e MOBI online, grátis e sem instalar nada. Upload criptografado, exclusão automática em 60 minutos.
Perguntas frequentes
HTMLZ (HTMLZ eBook) is an ebook format designed for reading long-form text on dedicated e-readers, tablets, and ebook apps. It is part of the ebooks family and typically supports reflowable text, embedded images, chapter navigation, cover art, and metadata (title, author, ISBN) in a portable package.
HTMLZ (HTMLZ eBook) is an ebook formato designed para reading long-form text on dedicated e-readers, tablets, e ebook apps. It is part of the ebooks family e tipicamente suporta reflowable text, embedded images, chapter navigation, cover art, e metadata (title, author, ISBN) em um portable package.
Dedicated e-readers — Kindle, Kobo, Nook, Pocketbook — support the most common ebook formats. On phones, Apple Books, Google Play Books, Moon+ Reader and KOReader all handle HTMLZ. For desktop reading, Calibre is the universal ebook viewer and library manager. Convert to EPUB or PDF for maximum compatibility.
Dedicated e-readers — Kindle, Kobo, Nook, Pocketbook — support the most common ebook formatoos. On phones, Apple Books, Google reproduzir Books, Moon+ Reader e KOReader all handle HTMLZ. para desktop reading, Calibre is the universal ebook viewer e library manager. converter to EPUB ou PDF para máximo compatibilidade.
Upload your HTMLZ to KaijuConverter and pick EPUB, MOBI, PDF, AZW3, or similar targets. Our Calibre-powered pipeline preserves chapter structure, embedded images, cover art, and metadata. Conversion takes seconds for typical novels; long technical books with many images may take a little longer.
EPUB is the open ebook standard — it plays on every e-reader except older Kindles and in every major ebook app. PDF is better for fixed-layout content (textbooks, coffee-table books) and printing. Pick EPUB when the ebook is reflowable text, PDF when the layout matters more than the reading experience.