mq - A jq-style Markdown query language

mq is a CLI tool that lets you query, filter, and transform Markdown documents using syntax similar to JSON's jq. By treating Markdown as structured data, it enables batch operations such as slicing, filtering, and mapping.

It is especially specialized for manipulating Markdown, a key input format for LLMs, making it very useful for prompt and output management, content analysis, and LLM workflow automation.

Key features include:

• Support for diverse formats: Supports markdown, mdx, html, csv, json, toml, xml, yaml, and more, with automatic parsing available via file extensions or flags.
• Sophisticated selectors: Supports extracting headings, code blocks, links, and table cells, as well as section-level extraction based on titles.
• Document conversion: The mq conv command converts Excel, Word, and PDF to Markdown, which can then be immediately piped into Unix pipelines.
• Developer-friendly environment: Implemented in Rust, it provides a REPL, LSP, VSCode extension, and debugger. It also supports bindings for various languages including Python, Go, and Java.