E-books are structured archives pretending to be documents, so this category gives readers and converters something real to work through. The EPUB set ships a valid EPUB 3 with a cover, a navigation document, styled chapters, and a correctly stored OCF mimetype, paired with an intentionally invalid twin whose mimetype is compressed and mislabelled, so you can test how a reader handles a malformed container. There's a FictionBook (FB2) file (a single self-contained XML e-book with full metadata) and a CBZ comic archive built from generated pages. Every book is original content, documented down to its spine and manifest, and safe to open anywhere.
Filter e-books on Browse · 90 files · 24 subcategories
Results start with a representative from each related test family. Use a card’s variant menu or the filters below to reach a specific format, profile, or failure case; every sample retains its own detail page and download.
Its OCF mimetype entry is compressed and mislabelled instead of being stored first and uncompressed, so you can test how a reader handles a malformed EPUB container against a correct EPUB 3 twin.
No, every e-book is original generated content with a documented spine and manifest, safe to open and redistribute.
A valid EPUB 3 (cover, navigation document, styled chapters, correct OCF mimetype) and its intentionally-invalid twin, a self-contained FictionBook (FB2) XML e-book, and a CBZ comic archive built from generated pages.
Start with one example from each use-case group, then continue through its other test families. Choose a use case, search, or filter to find a specific profile; a card’s variant menu contains its related samples.
37 test families · 90 available files · Page 1 of 3
Broken Package
An intentionally invalid EPUB whose META-INF/container.xml contains an empty rootfiles element, so nothing points at the package document - even though OEBPS/content.opf is present and correct. Intentionally invalid and
Comic
A CBZ comic archive: a ZIP of sequentially named JPEG pages, the standard container for digital comics. Built from generated pages; for testing comic readers and CBZ→PDF conversion.
Conformance
An EPUB 3 carrying the accessibility metadata distributors now require: schema:accessMode, accessModeSufficient, four accessibilityFeature values, a hazard statement, a written summary, and a dcterms:conformsTo link. The
Converter Twins
A plain EPUB 2.0.1 build of a two-chapter book: NCX navigation, an OPF guide with cover and text references, and the meta name="cover" convention. One third of a conversion set that also ships as EPUB 3 and FB2.
Css Variant
The same SAMPLE book content with a sans-serif stylesheet: CSS twin of the serif EPUB.
Embedded Fonts
The same book obfuscated the other way: Adobe's scheme XORs the first 1024 bytes with the sixteen raw bytes of the identifier UUID. Two schemes, two byte counts, two algorithm URIs - the pair that catches a reader which
Epub
A valid EPUB 3 e-book with a cover image, an EPUB navigation document, styled chapters, and a correctly stored OCF mimetype. Original content, for testing EPUB readers and EPUB→other conversion.
Epub Versions
A valid EPUB 2.0.1 e-book navigated by an NCX table of contents and an OPF <guide>, with a cover: the older EPUB edition. Paired with an identical EPUB 3 twin for testing EPUB2↔EPUB3 conversion.
Epub2
The cover convention that predates every standard way of doing it: a bare meta name="cover" pointing at a manifest id, with no guide reference, no cover XHTML page and nothing in the spine. For testing cover extraction a
Fb2
A FictionBook whose cover is a base64-encoded PNG in a binary element at the foot of the file, wired to a coverpage in the description by xlink id. For testing FB2 image extraction and the converters that have to turn th
Fixed Layout
A fixed-layout EPUB 3: rendition:layout is pre-paginated, every page declares a 600x800 viewport, and all content is absolutely positioned. Paired with a reflowable twin carrying the same words, so you can see which of t
Kindle
The valid EPUB converted to AZW3 (Kindle KF8) with Calibre: the modern Kindle format. For testing AZW3 readers and EPUB→AZW3 conversion.
Landmarks
EPUB 3 SAMPLE with landmarks nav for reader TOC/landmark tests.
Mathml
The same equation carrying the fallbacks a reader without a MathML engine needs: an altimg raster, its declared dimensions and baseline offset, and an alttext reading of the formula for speech. For testing fallback selec
Media Overlay
An EPUB 3 with a real media overlay: a SMIL document ties three paragraph ids to clip ranges in an embedded MP3, and the package declares media:duration and media:active-class. The narration track is deliberately silent
Metadata Encoding
Two dc:title elements distinguished only by refines chains into title-type and display-seq, a creator with file-as and a MARC relator role, and a series declared with belongs-to-collection. The structure a catalogue actu
Navigation
A book whose two navigation surfaces tell different stories: the NCX reorders the chapters, omits one, and points at a chapter9.xhtml that does not exist, while nav.xhtml is correct. For testing which surface a reader tr
Novel
A six-chapter original short novel as EPUB 3, with a cover and navigation: longer, real narrative prose for testing paginators, readers, reflow, and EPUB conversion at a realistic length. Original content, free to use.
The use-case group filter replaces the long list of category sections.
