html-to-markdown

Turn messy, real-world HTML into clean Markdown — from the language you already work in.

Feed html-to-markdown the HTML you actually have — unclosed tags, CDATA, custom elements, broken entities, nested tables, mixed encodings — and get back clean CommonMark (or Djot) without losing content. One convert() call does it, and it returns the same result whether you run it from Python, TypeScript, Go, Ruby, Java, or 11 more languages.

You get more than the text: pull page metadata (Open Graph, Twitter, JSON-LD) and structured tables in the same pass, or hook into the conversion to reshape the output. It is fast enough for whole-corpus jobs, and the messy-input handling is automatic — you never choose a parsing strategy or tune anything to get correct output.

⭐ Star this repo to show your support — it helps others discover html-to-markdown.

convert() is the single entry point — it returns a structured result with content, warnings, and optional metadata.

cargo add html-to-markdown-rs

See Rust README for full documentation.

pip install html-to-markdown

See Python README for full documentation.

npm install @xberg-io/html-to-markdown

See Node.js README for full documentation.

go get github.com/xberg-io/html-to-markdown/packages/go/v3

See Go README for full documentation.

Available on Maven Central as io.xberg:html-to-markdown. See Java README for the dependency snippet and current version.

dotnet add package XbergIo.HtmlToMarkdown

See C# README for full documentation.

gem install html-to-markdown

See Ruby README for full documentation.

This is a native PHP extension (Rust ext-php-rs), so install it with PIE — not composer require:

pie install xberg-io/html-to-markdown

See PHP README for full documentation.

Add {:html_to_markdown, "~> 3.6"} to your mix.exs dependencies. See Elixir README for full documentation.

install.packages("htmltomarkdown", repos = "https://xberg-io.r-universe.dev")

See R README for full documentation.

dart pub add h2m

See Dart README for full documentation.

Available on Maven Central as io.xberg:html-to-markdown-android. See Kotlin README for the dependency snippet and current version.

Add via Swift Package Manager. See Swift README for full documentation.

See Zig README for installation and usage.

npm install @xberg-io/html-to-markdown-wasm

See WebAssembly README for full documentation.

Pre-built .so / .dll / .dylib from GitHub Releases. See FFI crate for full documentation.

cargo install html-to-markdown-cli

# Or install the prebuilt binary via cargo-binstall:
cargo binstall html-to-markdown-cli

brew install xberg-io/tap/html-to-markdown

See CLI usage for full documentation.

Install the html-to-markdown plugin from xberg-io/html-to-markdown. It ships the html-to-markdown agent skills and works with every major coding agent — expand your harness below.

/plugin marketplace add xberg-io/html-to-markdown
/plugin install html-to-markdown@html-to-markdown

/plugins add https://github.com/xberg-io/html-to-markdown

Then search for html-to-markdown and select Install Plugin.

Settings → Plugins → Add from URL → https://github.com/xberg-io/html-to-markdown, then select html-to-markdown.

gemini extensions install https://github.com/xberg-io/html-to-markdown

droid plugin marketplace add https://github.com/xberg-io/html-to-markdown
droid plugin install html-to-markdown@html-to-markdown

copilot plugin marketplace add https://github.com/xberg-io/html-to-markdown
copilot plugin install html-to-markdown@html-to-markdown

Add the package to opencode.json:

{
  "$schema": "https://opencode.ai/config.json",
  "plugin": ["@xberg-io/opencode-html-to-markdown"]
}

Full guides, the convert() API for every binding, tier architecture, the metadata and visitor APIs, and performance benchmarks live at docs.html-to-markdown.xberg.io.

• Xberg — the open-source content-intelligence engine: text, tables, and metadata from 101 formats (115 file extensions), with OCR, transcription, and code intelligence. MIT.
• Xberg Pro — a complete self-hosted content-intelligence backend in a single container. Commercial.
• Xberg Enterprise — the distributed, governed content-intelligence platform, scaled on Kubernetes with team governance and support. Commercial.
• crawlberg — web crawling and scraping with HTML→Markdown and headless-Chrome fallback.
• html-to-markdown — fast, lossless HTML→Markdown engine.
• liter-llm — universal LLM API client with native bindings for 14 languages and 165 providers.
• tree-sitter-language-pack — tree-sitter grammars and code-intelligence primitives.
• alef — the polyglot binding generator that produces every per-language binding across the 5 polyglot repos.

Contributions welcome! See CONTRIBUTING.md for setup instructions and guidelines.

MIT License — see LICENSE for details.