
calibre
Manages, converts, and syncs e-book libraries across dozens of formats and reading devices, with built-in viewing and editing tools
It takes care to curate a safe software space. Help us do more.
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| + | Format Conversion | Converts e-books among dozens of formats including EPUB, MOBI, AZW3, PDF, and DOCX, allowing a single library to be read on almost any device. |
|---|---|---|
| + | Metadata Management | Downloads and edits book metadata such as title, author, cover, and tags from multiple online sources, keeping a library consistently organized and searchable. |
| + | Device Syncing | Syncs converted books to e-reader devices over USB or wirelessly and auto-selects the best format for each device, removing manual conversion steps before transfer. |
| + | Built-in E-book Viewer | Includes a viewer supporting table of contents, bookmarks, highlighting, and read-aloud narration, letting books be previewed and read without a separate app. |
| + | E-book Editor | Provides a built-in editor for EPUB and Kindle format books, enabling direct fixes to text, styling, and structure without external editing software. |
| + | News & Periodical Download | Fetches articles from hundreds of news sources or custom RSS feeds and packages them as e-books, letting periodicals be read offline on any reading device. |
| + | Content Server | Runs a built-in web server that exposes the library over a browser or as an installable PWA, allowing remote reading and management from phones and tablets. |
| + | Full Text Search | Indexes the complete text of every book in the library, so a word or phrase can be found across the entire collection rather than one book at a time. |
| + | AI Assistant Integration | Connects to AI providers including Anthropic, Google, and locally run models via Ollama or LM Studio, allowing readers to ask questions about a book’s content directly in the viewer. |
...10 more features/limitations. Contact us to get a complete list of features and system requirements.
System Requirements
| # | Minimum |
|---|---|
| 1 | Windows 10, version 1809 or higher |
| # | Minimum |
|---|---|
| 1 | macOS 14.0 (Sonoma) or higher |
| 2 | Apple Silicon or Intel (universal binary) |
| # | Minimum |
|---|---|
| 1 | 64-bit Intel or ARM64 compatible |
| 2 | GLIBC 2.34 or higher |
| 3 | libstdc++.so.6.0.30 (from GCC 11.4.0) or higher |
Want to get access to entire data for training LLM or studying software or may be something else? Contact us at contact [at] softorage [dot] com
Want to get access to entire data for training LLM or studying software or may be something else? Contact us at contact [at] softorage [dot] com
Want to get access to entire data for training LLM or studying software or may be something else? Contact us at contact [at] softorage [dot] com
Want to get access to entire data for training LLM or studying software or may be something else? Contact us at contact [at] softorage [dot] com
Want to get access to entire data for training LLM or studying software or may be something else? Contact us at contact [at] softorage [dot] com
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Trivia:
- calibre styles its own name in all lowercase (“calibre”), a deliberate branding choice by its creator rather than a typo, and is pronounced “cali-ber,” not “ca-libre.”