# betterhtmlchunking | Carlos A. Planchón | Knowledge Base | Instagit

BetterHTMLChunking is a Python library for intelligent HTML segmentation. It builds a DOM tree from raw HTML and extracts content-rich regions of interest, making content analysis effortless. Great for LLM based processing.

GitHub Stars: 51

Repository: https://github.com/carlosplanchon/betterhtmlchunking

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## Articles

### [How `order_regions_of_interest_by_pos_xpath` Sorts HTML Chunks by Document Position in betterhtmlchunking](/carlosplanchon/betterhtmlchunking/how-does-the-order_regions_of_interest_by_pos_xpath-function-sort-chunks-by-document-position)

Learn how order_regions_of_interest_by_pos_xpath sorts HTML chunks by document position using XPath document indexes. Ensure your chunks maintain original HTML visual flow.

- Tags: deep-dive
- Published: 2026-02-26

### [How to Use the --text-only Flag in betterhtmlchunking for Plain Text Output](/carlosplanchon/betterhtmlchunking/how-do-i-use-the-text-only-flag-to-get-plain-text-output-without-html-markup)

Learn to use the --text-only flag in betterhtmlchunking to extract clean plain text output without HTML markup. Simplify your text processing effortlessly.

- Tags: how-to-guide
- Published: 2026-02-26

### [How MAX_NODE_REPR_LENGTH Controls Chunk Count and Semantic Coherence in BetterHTMLChunking](/carlosplanchon/betterhtmlchunking/whats-the-impact-of-different-max_node_repr_length-values-on-chunk-count-and-semantic-coherence)

Discover how MAX_NODE_REPR_LENGTH impacts chunk count and semantic coherence in BetterHTMLChunking. Optimize your DOM parsing for better results.

- Tags: deep-dive
- Published: 2026-02-26

### [How to Process HTML from Stdin Using the BetterHTMLChunking CLI and Pipe Output to Other Tools](/carlosplanchon/betterhtmlchunking/how-do-i-process-html-from-stdin-using-the-cli-and-pipe-the-output-to-other-tools)

Process HTML from stdin using the BetterHTMLChunking CLI. Pipe output to tools like jq and grep for powerful text manipulation. Integrate seamlessly with Unix pipes.

- Tags: how-to-guide
- Published: 2026-02-26

### [How BetterHTMLChunking Preserves Parent-Child Relationships and Hierarchical Context in HTML Chunks](/carlosplanchon/betterhtmlchunking/how-does-betterhtmlchunking-preserve-parent-child-relationships-and-hierarchical-context-in-chunks)

Discover how BetterHTMLChunking maintains hierarchical context in HTML chunks. Learn how it uses XPath and BeautifulSoup to preserve parent-child relationships for better data integrity.

- Tags: internals
- Published: 2026-02-26

### [betterhtmlchunking CLI Logging Modes: Default vs Verbose vs Maximal-Verbose](/carlosplanchon/betterhtmlchunking/whats-the-difference-between-the-verbose-maximal-verbose-and-default-logging-modes-in-the-cli)

Understand betterhtmlchunking CLI logging modes. Learn the differences between default, verbose, and maximal-verbose to control your HTML chunking diagnostics and troubleshoot effectively.

- Tags: deep-dive
- Published: 2026-02-26

### [How to Filter Chunks by Size Using the JSON Output and jq in betterhtmlchunking](/carlosplanchon/betterhtmlchunking/how-do-i-filter-chunks-by-size-using-the-json-output-and-jq)

Filter betterhtmlchunking JSON output by size using jq. Learn to select chunks based on html_length or text_length for efficient data processing.

- Tags: how-to-guide
- Published: 2026-02-26

### [How Root XPath Detection Works in betterhtmlchunking When the /html Element Is Missing](/carlosplanchon/betterhtmlchunking/how-does-the-root-xpath-detection-work-when-the-dom-tree-doesnt-contain-a-html-element)

Discover how betterhtmlchunking performs root XPath detection even without a /html element. Learn about its fallback mechanism for robust HTML fragment processing.

- Tags: internals
- Published: 2026-02-26

### [How to Use the betterhtmlchunking tree_representation API to Retrieve Node Metadata (text_length and html_length)](/carlosplanchon/betterhtmlchunking/how-do-i-use-the-tree_representation-api-to-get-node-metadata-like-text_length-and-html_length)

Learn to use the betterhtmlchunking tree_representation API to access node metadata like text_length and html_length via the xpaths_metadata dictionary. Unlock valuable DOM information.

- Tags: how-to-guide
- Published: 2026-02-26

### [Internal Architecture of tree_regions_system: Queue-Based Region Detection in BetterHTMLChunking](/carlosplanchon/betterhtmlchunking/whats-the-internal-architecture-of-the-tree_regions_system-and-its-queue-based-processing)

Discover the internal architecture of the tree_regions_system in betterhtmlchunking. Learn how queue-based processing partitions HTML documents efficiently while preserving order.

- Tags: internals
- Published: 2026-02-26

### [How to Combine betterhtmlchunking with LangChain for Hybrid RAG Pipelines](/carlosplanchon/betterhtmlchunking/how-do-i-combine-betterhtmlchunking-with-langchain-for-hybrid-rag-pipelines)

Integrate betterhtmlchunking and LangChain for hybrid RAG pipelines. Learn to create structure-aware chunks from HTML ARoIs for advanced retrieval-augmented generation workflows.

- Tags: how-to-guide
- Published: 2026-02-26

### [How the html_unescape Parameter Handles HTML Entities in BetterHTMLChunking](/carlosplanchon/betterhtmlchunking/how-does-the-html_unescape-parameter-handle-html-entities-in-the-input-content)

Understand how the html_unescape parameter in BetterHTMLChunking decodes HTML entities before DOM parsing. Learn to control HTML entity handling for cleaner content processing.

- Tags: how-to-guide
- Published: 2026-02-26

### [How to Use the JSON Output Format in betterhtmlchunking for Programmatic Processing with jq](/carlosplanchon/betterhtmlchunking/how-do-i-use-the-json-output-format-for-programmatic-processing-with-tools-like-jq)

Learn to use JSON output format in betterhtmlchunking for programmatic processing. Pipe clean stdout to jq for easy filtering and data extraction.

- Tags: how-to-guide
- Published: 2026-02-26

### [What Happens When max_node_repr_length Is Larger Than the Document in BetterHTMLChunking](/carlosplanchon/betterhtmlchunking/what-happens-when-no-roi-is-found-due-to-max_node_repr_length-being-larger-than-the-document)

Discover what happens when max_node_repr_length exceeds your document size in BetterHTMLChunking. Your entire document becomes a single ROI, preventing empty results.

- Tags: internals
- Published: 2026-02-26

### [How the RenderSystem Generates Both HTML and Plain Text Outputs in Parallel](/carlosplanchon/betterhtmlchunking/how-does-the-render_system-generate-both-html-and-plain-text-outputs-in-parallel)

Learn how the RenderSystem efficiently generates parallel HTML and plain text outputs using BeautifulSoup and Parsel for faster content processing. Explore the betterhtmlchunking repository.

- Tags: internals
- Published: 2026-02-26

### [How to Access Positional XPaths to Trace HTML Chunks Back to Source in betterhtmlchunking](/carlosplanchon/betterhtmlchunking/how-do-i-access-positional-xpaths-to-trace-each-chunk-back-to-its-origin-in-the-source-html)

Discover how to access positional XPaths in betterhtmlchunking using RegionOfInterest.pos_xpath_list to precisely trace HTML chunks back to their original source locations.

- Tags: how-to-guide
- Published: 2026-02-26

### [How the ROIMaker Class Handles Nodes That Exceed the max_node_repr_length Limit](/carlosplanchon/betterhtmlchunking/how-does-the-roimaker-class-handle-nodes-that-exceed-the-max_node_repr_length-limit)

Learn how the ROIMaker class isolates and processes nodes exceeding max_node_repr_length. Discover efficient handling of oversized nodes in betterhtmlchunking to optimize performance.

- Tags: internals
- Published: 2026-02-26

### [How to Enable Maximal-Verbose Logging in BetterHtmlChunking to Debug Chunking Issues](/carlosplanchon/betterhtmlchunking/how-do-i-enable-maximal-verbose-logging-to-debug-chunking-issues-and-inspect-dom-node-details)

Debug chunking issues with BetterHtmlChunking by enabling maximal-verbose logging. Inspect DOM node details and ROI formation for enhanced troubleshooting. Learn how to activate detailed logging via CLI or programmatically.

- Tags: how-to-guide
- Published: 2026-02-26

### [How to Extract All HTML Chunks to Separate Files with the `--all-chunks` CLI Option](/carlosplanchon/betterhtmlchunking/how-do-i-use-the-cli-to-extract-all-chunks-to-separate-files-with-the-all-chunks-option)

Easily split HTML into separate files using betterhtmlchunking CLI with the --all-chunks option. Learn how to extract all HTML chunks efficiently for better organization.

- Tags: how-to-guide
- Published: 2026-02-26

### [How the RegionOfInterest (ROI) System Groups DOM Nodes into Semantically Coherent Chunks](/carlosplanchon/betterhtmlchunking/how-does-the-regionofinterest-roi-system-group-dom-nodes-into-semantically-coherent-chunks)

Discover how the RegionOfInterest system groups DOM nodes into semantically coherent chunks. Learn its efficient tree traversal and chunking strategy.

- Tags: internals
- Published: 2026-02-26

### [Performance Difference Between HTML_LENGTH vs TEXT_LENGTH Chunk Size Comparison Modes](/carlosplanchon/betterhtmlchunking/whats-the-performance-difference-between-html_length-vs-text_length-chunk-size-comparison-modes)

Discover the negligible performance difference between HTML_LENGTH and TEXT_LENGTH chunk size modes. Learn when TEXT_LENGTH might create more chunks and loop iterations.

- Tags: performance
- Published: 2026-02-26

### [How to Customize the tag_list_to_filter_out Parameter in betterhtmlchunking](/carlosplanchon/betterhtmlchunking/how-do-i-customize-the-tag_list_to_filter_out-parameter-to-remove-specific-html-elements-like-headers-or-footers)

Customize the tag_list_to_filter_out parameter in betterhtmlchunking to exclude specific HTML elements. Learn how to remove headers, footers, and more from your chunking pipeline.

- Tags: how-to-guide
- Published: 2026-02-26

### [How betterhtmlchunking's BFS Algorithm Traverses the DOM to Find Optimal Chunk Boundaries](/carlosplanchon/betterhtmlchunking/how-does-betterhtmlchunking-s-bfs-algorithm-traverse-the-dom-tree-to-identify-optimal-chunk-boundaries)

Discover how betterhtmlchunking's BFS algorithm traverses the DOM tree level-by-level to identify optimal chunk boundaries, grouping nodes efficiently while re-queuing oversized ones.

- Tags: algorithm-explanation
- Published: 2026-02-26