RAG Chunking Simulator & Visualizer
A free browser-based tool for simulating and visualizing text chunking in RAG. It supports comparison of multiple chunking strategies, parameter adjustment, boundary visualization, diagnostic statistics and parent-child chunking simulation, with all text processing performed locally.
Timeline (last 90 days)
RAG Chunking Simulator & Visualizer is a free browser tool where all text processing is done locally in the browser and is not sent to an API.
The tool supports eight chunking strategies: fixed size, recursive character, sentence-aware, paragraph-aware, Markdown-aware, heading-based, regex-based, and word-count-based.
The tool allows multiple chunking strategies to be selected at once for comparison, and the benchmark table shows each strategy's chunk count, average size, size variance, overlap characters, and estimated cost.
The tool provides a source boundary map, marking odd and even chunks with alternating colors, highlighting the shared overlap region separately, and supporting chunk-by-chunk viewing, minimap jumping, and a chunk preview inspector.
The tool provides a chunk size distribution and diagnostics panel, including a 6-bin histogram, tiny chunks (with configurable threshold), oversized chunks, boundary warnings, and counts of near-duplicates, but these are only review prompts, not validated quality scores.
The tool can generate framework configuration code for LangChain (Python) or LlamaIndex (Python), and supports exporting chunk data in JSON, JSONL, CSV, or TXT format.
The offsets exported by the tool are JavaScript UTF-16 code units, not UTF-8 byte offsets; pipelines that need byte offsets must perform a conversion.
All Facts (7)
RAG Chunking Simulator & Visualizer is a free browser tool where all text processing is done locally in the browser and is not sent to an API.
50%UnverifiedThe tool supports eight chunking strategies: fixed size, recursive character, sentence-aware, paragraph-aware, Markdown-aware, heading-based, regex-based, and word-count-based.
50%UnverifiedThe tool allows multiple chunking strategies to be selected at once for comparison, and the benchmark table shows each strategy's chunk count, average size, size variance, overlap characters, and estimated cost.
50%UnverifiedThe tool provides a source boundary map, marking odd and even chunks with alternating colors, highlighting the shared overlap region separately, and supporting chunk-by-chunk viewing, minimap jumping, and a chunk preview inspector.
50%UnverifiedThe tool provides a chunk size distribution and diagnostics panel, including a 6-bin histogram, tiny chunks (with configurable threshold), oversized chunks, boundary warnings, and counts of near-duplicates, but these are only review prompts, not validated quality scores.
50%UnverifiedThe tool can generate framework configuration code for LangChain (Python) or LlamaIndex (Python), and supports exporting chunk data in JSON, JSONL, CSV, or TXT format.
50%UnverifiedThe offsets exported by the tool are JavaScript UTF-16 code units, not UTF-8 byte offsets; pipelines that need byte offsets must perform a conversion.
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