--- title: "book-to-skill vs xberg" type: "comparison" canonical_url: "https://www.graphcanon.com/compare/virgiliojr94-book-to-skill-vs-xberg-io-xberg" tools: ["virgiliojr94-book-to-skill", "xberg-io-xberg"] --- # book-to-skill vs xberg *GraphCanon updated Sep 20, 2026* ## Verdict Pick book-to-skill if book-to-skill is a Python-based tool that converts technical book PDFs into Claude Code skills, facilitating effective study and reference; pick xberg if xberg is a polyglot document intelligence framework with a Rust core, offering text and metadata extraction across various formats including PDFs, Office documents, and more than 97 other file types. It supports multiple. [book-to-skill](https://github.com/virgiliojr94/book-to-skill) reports 31k GitHub stars, 3.2k forks, and 16 open issues, last pushed Sep 17, 2026. [xberg](https://docs.xberg.io) has 9.1k stars, 562 forks, and 13 open issues, last pushed Aug 16, 2026. Figures are from public GitHub metadata via [book-to-skill's repository](https://github.com/virgiliojr94/book-to-skill) and [xberg's repository](https://github.com/xberg-io/xberg). | | [book-to-skill](/tools/virgiliojr94-book-to-skill.md) | [xberg](/tools/xberg-io-xberg.md) | | --- | --- | --- | | Tagline | Converts technical book PDFs into Claude Code skills for study and reference | A polyglot document intelligence framework with a Rust core | | Stars | 31,078 | 9,128 | | Forks | 3,224 | 562 | | Open issues | 16 | 13 | | Language | Python | Rust | | Adopt for | book-to-skill is a Python-based tool that converts technical book PDFs into Claude Code skills, facilitating effective study and reference. | xberg is a polyglot document intelligence framework with a Rust core, offering text and metadata extraction across various formats including PDFs, Office documents, and more than 97 other file types. It supports multiple | | Persona | - | - | | Runtime | - | - | | License | MIT license applies to the converter code and skill definition in the repository, but not to any book or document processed with it. | MIT License allows for both free and commercial use with no need to disclose source code but requires attribution. | | Categories | AI Agents, Data & Retrieval, Developer Tools | Data & Retrieval | ## Trust and health _Sourced signals - not a safety guarantee. No winner column._ | | [book-to-skill](/tools/virgiliojr94-book-to-skill.md) | [xberg](/tools/xberg-io-xberg.md) | | --- | --- | --- | | Days since push | 0d | 1d | | Open issues (now) | 16 | 13 | | Stars delta | Unknown | +460 (30d) | | Open issues delta | Unknown | -5 (30d) | | Owner type | User | Organization | | Full report | [trust report](/tools/virgiliojr94-book-to-skill/trust.md) | [trust report](/tools/xberg-io-xberg/trust.md) | ## Decision facts: book-to-skill - **Pricing:** freemium - The tool is free to use under the MIT license, but any books or documents processed with it are subject to their own licensing. - **Requirements:** Min 2 GB RAM; Requires Python environment to run the tool. - **Adopt for:** book-to-skill is a Python-based tool that converts technical book PDFs into Claude Code skills, facilitating effective study and reference. - **License detail:** MIT license applies to the converter code and skill definition in the repository, but not to any book or document processed with it. ## Decision facts: xberg - **Pricing:** freemium - Open-source MIT license; enterprise support is available. - **Requirements:** xberg offers flexible deployment modes including CLI, REST API server, Docker container, and MCP integration - **Adopt for:** xberg is a polyglot document intelligence framework with a Rust core, offering text and metadata extraction across various formats including PDFs, Office documents, and more than 97 other file types. It supports multiple - **License detail:** MIT License allows for both free and commercial use with no need to disclose source code but requires attribution. ## Choose when ### Choose book-to-skill if… - book-to-skill is primarily Python; xberg is Rust. - Pricing: The tool is free to use under the MIT license, but any books or documents processed with it are subject to their own licensing.. - Requirements: Min 2 GB RAM; Requires Python environment to run the tool.. - Tags unique to book-to-skill: agent-skills, ai-agents, book-to-skill, context-engineering. - Also covers AI Agents, Developer Tools. - When you need to convert technical book PDFs into a format that can be easily studied and referenced using Claude Code skills. ### Choose xberg if… - xberg is primarily Rust; book-to-skill is Python. - Pricing: Open-source MIT license; enterprise support is available.. - Requirements: xberg offers flexible deployment modes including CLI, REST API server, Docker container, and MCP integration. - Tags unique to xberg: bun, csharp, document-intelligence, elixir. - You need to extract not only text but also structured information such as images, tables from over 100 file formats ## When NOT to use book-to-skill - If your goal is to convert non-technical books or documents that do not require the specific format of Claude Code skills. - When you are looking for a tool that processes and converts documents into formats other than those compatible with Claude Code. ## When NOT to use xberg - You need a solution with lower resource requirements as xberg supports extensive formats and functionalities which might be overkill for simpler tasks - Your primary use case involves real-time document processing where latency is critical. Given the breadth of its capabilities, xberg might introduce higher processing overhead compared to more focused ## Common questions ### What is the difference between book-to-skill and xberg? book-to-skill: Converts technical book PDFs into Claude Code skills for study and reference. xberg: A polyglot document intelligence framework with a Rust core. See the comparison table for live GitHub stats and shared categories. ### When should I choose book-to-skill over xberg? Choose book-to-skill over xberg when book-to-skill is primarily Python; xberg is Rust; Pricing: The tool is free to use under the MIT license, but any books or documents processed with it are subject to their own licensing.; Requirements: Min 2 GB RAM; Requires Python environment to run the tool.; Tags unique to book-to-skill: agent-skills, ai-agents, book-to-skill, context-engineering; Also covers AI Agents, Developer Tools; When you need to convert technical book PDFs into a format that can be easily studied and referenced using Claude Code skills. ### When should I choose xberg over book-to-skill? Choose xberg over book-to-skill when xberg is primarily Rust; book-to-skill is Python; Pricing: Open-source MIT license; enterprise support is available.; Requirements: xberg offers flexible deployment modes including CLI, REST API server, Docker container, and MCP integration; Tags unique to xberg: bun, csharp, document-intelligence, elixir; You need to extract not only text but also structured information such as images, tables from over 100 file formats. ### When should I avoid book-to-skill? If your goal is to convert non-technical books or documents that do not require the specific format of Claude Code skills. When you are looking for a tool that processes and converts documents into formats other than those compatible with Claude Code. ### When should I avoid xberg? You need a solution with lower resource requirements as xberg supports extensive formats and functionalities which might be overkill for simpler tasks Your primary use case involves real-time document processing where latency is critical. Given the breadth of its capabilities, xberg might introduce higher processing overhead compared to more focused ### Is book-to-skill or xberg more popular on GitHub? book-to-skill has more GitHub stars (31,078 vs 9,128). Stars measure visibility, not whether either tool fits your constraints. ### Are book-to-skill and xberg open source? Yes - both are open-source projects on GitHub (book-to-skill: MIT, xberg: MIT). ### Where can I find alternatives to book-to-skill or xberg? GraphCanon lists graph-backed alternatives at [book-to-skill alternatives](/tools/virgiliojr94-book-to-skill/alternatives) and [xberg alternatives](/tools/xberg-io-xberg/alternatives) ([book-to-skill markdown twin](/tools/virgiliojr94-book-to-skill/alternatives.md), [xberg markdown twin](/tools/xberg-io-xberg/alternatives.md)), ranked by typed relationship edges rather than popularity votes. ### Is there a machine-readable version of this comparison? Yes. The markdown twin at [this comparison](/compare/virgiliojr94-book-to-skill-vs-xberg-io-xberg.md) mirrors this page for agents and LLM crawlers, with the same stats table and FAQ answers. ### Which is better maintained, book-to-skill or xberg? book-to-skill: Very active. xberg: Very active. Compare maintenance labels, days since push, and release cadence in the trust section below - stars alone do not measure maintenance. ### Where are the full trust reports for book-to-skill and xberg? GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: [book-to-skill trust report](/tools/virgiliojr94-book-to-skill/trust); [xberg trust report](/tools/xberg-io-xberg/trust). --- **Machine-readable endpoints** - JSON: [`/api/graphcanon/graph?tool=virgiliojr94-book-to-skill`](/api/graphcanon/graph?tool=virgiliojr94-book-to-skill) - LLM index: [/llms.txt](/llms.txt) - Full corpus: [/llms-full.txt](/llms-full.txt) _GraphCanon - The knowledge graph for AI development. https://www.graphcanon.com/_