LIT vs RST
A detailed comparison of Microsoft LIT and reStructuredText — file size, quality, compatibility, and which format to choose for your workflow.
Microsoft LIT
eBooksLIT is a legacy Microsoft Reader eBook format, now obsolete.
About LIT filesreStructuredText
Documents & TextRST (reStructuredText) is a lightweight markup language used in Python documentation.
About RST filesStrengths Comparison
LIT Strengths
- Good rendering quality via ClearType in its era.
- Efficient compression via LZX.
- Small file sizes for text-heavy books.
RST Strengths
- Rich directives for admonitions, code, math, and custom elements.
- Cross-references work within and across documents.
- Sphinx ecosystem offers best-in-class Python docs output.
- Standardized as part of Python PEP infrastructure.
- Plain text, version-controllable.
Limitations
LIT Limitations
- DRM activation servers are permanently offline — DRM-protected purchases are dead weight.
- Proprietary format with no vendor successor.
- Zero modern reader support (Windows, macOS, iOS, Android).
- Microsoft officially retired the product in 2012.
RST Limitations
- Syntax denser than Markdown — higher learning curve.
- Less widely adopted than Markdown outside Python world.
- Multiple directive dialects (Sphinx, Docutils, custom) create fragmentation.
- MyST (Markdown + Sphinx) has pulled many Python projects toward Markdown.
Technical Specifications
| Specification | LIT | RST |
|---|---|---|
| MIME type | application/x-ms-reader | text/x-rst |
| Extension | .lit | .rst |
| Container | CHM-like (LZX-compressed OEBPS) | — |
| DRM | Microsoft Reader activation (servers offline since 2012) | — |
| Status | Retired | — |
| Toolchain | — | Docutils, Sphinx, Read the Docs |
| Encoding | — | UTF-8 |
| Related formats | — | MyST (Markdown + RST directives) |
Typical File Sizes
LIT
- Novel (text only) 200 KB - 1 MB
- Illustrated book 2-10 MB
RST
- API reference page 5-50 KB
- Sphinx project chapter 20-100 KB
- Full library documentation 500 KB - 10 MB
Ready to convert?
Convert between LIT and RST online, free, and without installing anything. Encrypted upload, automatic deletion after 2 hours.
Frequently Asked Questions
LIT (Microsoft LIT) 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.
RST (reStructuredText) is a document format used to store paginated text, with optional formatting, tables, images, hyperlinks, headers and footers. It sits in the documents & text family and is typically associated with a specific office suite or publishing pipeline that defined the format and ships the canonical reader.
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 LIT. For desktop reading, Calibre is the universal ebook viewer and library manager. Convert to EPUB or PDF for maximum compatibility.
Modern office suites — Microsoft Word, Google Docs, LibreOffice Writer, Apple Pages — open most RST files with reasonable fidelity. If your installed software does not support RST, convert to DOCX or PDF first using KaijuConverter; both open in virtually every reader, including free online viewers.
Upload your LIT 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.