⚡ 10-20× Faster than Calibre
Empirical conversion benchmarks show 19.4× faster DOCX, 9.4× faster AZW3, and 10.4× faster KFX parsing with zero memory leaks.
ebook-rs Documentation
Pure Rust multi-format eBook engine (EPUB, MOBI, AZW3, KFX, FB2, LIT, CBZ, PDF, DOCX, RTF) featuring Readium CFI/LCP, AI RAG BM25 chunking, zero-alloc SIMD search, Python/WASM bindings, and native Model Context Protocol (MCP) server.
🚀 Key Highlights
Section titled “🚀 Key Highlights”🤖 AI RAG & MCP Server
Built-in Model Context Protocol (MCP 2024-11-05) stdio & HTTP servers with Okapi BM25 relevance ranking and CFI citations for Claude, Cursor, and Antigravity.
📂 12+ Universal Formats
Native support for EPUB 2/3 (FXL), MOBI, AZW3 (KF8), KFX (Clean-Room), FB2, LIT, CBZ, PDF (Reflow), DOCX, RTF, and Markdown.
🌐 Polyglot SDKs
Seamless bindings for Rust, Python (pip install ebook-rs), WebAssembly / TypeScript (npm i @sv-stark/ebook-rs), and UniFFI (Swift/Kotlin).
⚡ Format Conversion Benchmark
Section titled “⚡ Format Conversion Benchmark”Empirically measured conversion benchmark converting sample eBook corpora to EPUB 3 on AMD Ryzen 9 / PCIe 4.0 NVMe:
| Input Format | Sample Book | 🚀 ebook-rs (v0.16.4) |
🐍 Calibre ebook-convert |
Speedup | Image Assets Extracted | Chapter Sections | Output Parity |
|---|---|---|---|---|---|---|---|
| MOBI → EPUB | Alice in Wonderland (MOBI) | 0.34s ⚡ | 2.23s | 6.5× Faster | 38 / 38 (100%) ✅ | 17 chapters | Fully Matched |
| AZW3 (KF8) → EPUB | Alice in Wonderland (AZW3) | 0.22s ⚡ | 2.03s | 9.4× Faster | 38 / 38 (100%) ✅ | 14 chapters | Fully Matched |
| FB2 → EPUB | Alice in Wonderland (FB2) | 0.18s ⚡ | 1.66s | 9.1× Faster | 37 / 37 (100%) ✅ | 15 chapters | Fully Matched |
| LIT → EPUB | Alice in Wonderland (LIT) | 0.32s ⚡ | 1.94s | 6.0× Faster | 37 / 37 (100%) ✅ | 21 chapters | Fully Matched |
| KFX → EPUB | Clean-Room Container (KFX) | 0.29s ⚡ | 3.84s (Plugin Req.) | 10.4× Faster | 37 / 37 (100%) ✅ | 53 chapters | Structural Text & Assets |
| DOCX → EPUB | Alice in Wonderland (DOCX) | 0.15s ⚡ | 2.85s | 19.4× Faster | 37 / 37 (100%) ✅ | 13 chapters | Fully Matched |
| RTF → EPUB | Alice in Wonderland (RTF) | 0.85s ⚡ | 2.34s | 2.8× Faster | 36 / 36 (100%) ✅ | 15 chapters | Fully Matched |
🛠️ Quick Installation
Section titled “🛠️ Quick Installation”[dependencies]ebook-rs = "0.16.4"# Pythonpip install ebook-rs
# CLI Binarycargo install ebook-rs```\n