Document Chunking RAG Tools

Tools for splitting, segmenting, and optimizing documents into chunks for RAG pipelines. Includes chunking strategies (fixed, semantic, adaptive), chunk visualization/validation, and parameter optimization. Does NOT include document parsing, extraction, embedding, or retrieval components.

There are 39 document chunking tools tracked. 1 score above 70 (verified tier). The highest-rated is chonkie-inc/chonkie at 80/100 with 3,829 stars. 1 of the top 10 are actively maintained.

Get all 39 projects as JSON

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#	Tool	Score	Tier	Stars	Language
1	chonkie-inc/chonkie 🦛 CHONK docs with Chonkie ✨ — The lightweight ingestion library for fast,...	80	Verified	3,829	Python
2	speedyk-005/chunklet-py One library to split them all: Sentence, Code, Docs. Chunk smarter, not...	48	Emerging	64	Python
3	jchunk-io/jchunk JChunk is a lightweight and flexible library designed to provide multiple...	47	Emerging	17	Java
4	andreshere00/Splitter_MR Chunk your data into markdown text blocks for your LLM applications	44	Emerging	25	Jupyter Notebook
5	chonkie-inc/chonkiejs 🦛 CHONK your texts with Chonkie ✨ Type-friendly, light-weight, fast and...	43	Emerging	318	TypeScript
6	thom-heinrich/chonkify Extractive document compression for RAG and agent pipelines. +69% vs...	39	Emerging	5	Python
7	messkan/rag-chunk A Python CLI to test, benchmark, and find the best RAG chunking strategy for...	39	Emerging	104	Python
8	chonkie-inc/mtcb 🤔 wondering if your chunks are good? 🦉 Judie is here to Judge and Evaluate...	37	Emerging	3	Python
9	ayush585/SmartChunk SmartChunk is a lightweight, structure-aware semantic chunking toolkit...	37	Emerging	10	Python
10	ALucek/chunking-strategies An Overview of the Latest Document Chunking Research	36	Emerging	85	Jupyter Notebook
11	GiovanniPasq/chunky Validate, visualize, edit, and export chunks for RAG pipelines.	32	Emerging	17	Python
12	AceAtDev/RAG-chunker The easiest and most effective way tool to retrain a RAG LLM/GEN AI/Agent on...	31	Emerging	2	Python
13	bazilicum/axonode-chunker Advanced semantic text chunking with custom structural markers, whole-text...	30	Emerging	5	Python
14	smart-models/Sentences-Chunker Cutting-edge tool designed to intelligently segment text documents into...	29	Experimental	7	Python
15	mirpo/chopdoc A tool to split documents into chunks for RAG and LLM applications	28	Experimental	2	Go
16	wevote-project/crystal-text-splitter Intelligent text chunking for RAG (Retrieval-Augmented Generation) and LLM...	27	Experimental	7	Crystal
17	yuma-shintani/chunksize-checker Calculate the number of total tokens, optimal chunk size and chunk overlap...	27	Experimental	1	JavaScript
18	arclabs561/slabs Text chunking for RAG: fixed, sentence, recursive, and semantic splitting	26	Experimental	1	Rust
19	ekimetrics/adaptive-chunking Adaptive Chunking: automatically select the best chunking method per...	25	Experimental	4	Python
20	philip-zhan/semchunk.rb Ruby port of https://github.com/isaacus-dev/semchunk	25	Experimental	2	Ruby
21	stranger00135/ragflow-optimizer Automatically discover the best RAGFlow chunking parameters for each...	24	Experimental	3	Python
22	asukhodko/dify-markdown-chunker Advanced Markdown text chunker tool plugin for Dify RAG / knowledge bases	24	Experimental	9	Python
23	MukundaKatta/ChunkWise ChunkWise — Intelligent Document Chunking. Smart document chunking for RAG pipelines	22	Experimental	—	Python
24	zenwor/icm_rag 🧩 Intelligent Chunking Methods for Code Documentation RAG	22	Experimental	5	Python
25	pranavms13/deepcontext A semantic chunking service for documents, GitHub repos, webpages, and...	21	Experimental	2	Python
26	cwccie/ragchunk Chunking library for technical documentation — domain-aware splitting for...	21	Experimental	—	Python
27	Leo310/rag-chunking-evaluation Assess the effectiveness of chunking strategies in RAG systems via a custom...	18	Experimental	2	Jupyter Notebook
28	fujiba/pdf-chunker LLM-friendly PDF splitter & image optimizer. Chunk PDFs by size and...	15	Experimental	—	Python
29	sanbaiw/semtxtsplitter A smol Go package for splitting text into chunks while preserving semantic meaning.	14	Experimental	1	Go
30	Devparihar5/chunking-strategies-comparison A deep dive into text chunking for Retrieval-Augmented Generation systems	13	Experimental	—	Python
31	DTufail/rag-chunk-eval Benchmarking harness for RAG chunking strategies — compares Fixed,...	13	Experimental	—	Python
32	tainmou/SmartChunk 🧩 Enhance RAG processes with SmartChunk, a Python package that creates...	13	Experimental	—	—
33	hemantjuyal/Latent-Chunk-Lab A hands-on playground to explore different chunking techniques for...	13	Experimental	—	Jupyter Notebook
34	OneOffTech/the-chunk-list A comprehensive open-source database of document parsers, their pricing, and...	13	Experimental	—	Blade
35	Arnav-Ajay/rag-chunking-strategies A controlled study showing how different chunking strategies change which...	13	Experimental	—	Python
36	CodyPedersen/tikchunk Highly performant python library for recursive semantic text chunking while...	13	Experimental	2	Python
37	AleGallagher/ChunkingTechniques 🚀 Comprehensive evaluation of chunking techniques for RAG pipelines. Compare...	13	Experimental	—	Jupyter Notebook
38	mburaksayici/SemanticChunkingAndPropositionModel SemanticChunkingPropositionModel	11	Experimental	—	Jupyter Notebook
39	davidmoserai/AzureDocumentIntelligenceChunker A lightweight Python library for metadata-rich document chunking in...	10	Experimental	2	Python

Comparisons in this category

chonkie and chonkiejs (80 vs 43) chonkie and rag-chunk (80 vs 39) chonkie and chunking-strategies (80 vs 36) chonkie and chunklet-py (80 vs 48) chonkie and jchunk (80 vs 47) chonkie and chunky (80 vs 32) chonkie and SmartChunk (80 vs 37) chonkie and Sentences-Chunker (80 vs 29) chonkie and chonkify (80 vs 39) chonkie and axonode-chunker (80 vs 30)