chunkr alternatives
Curated alternatives to chunkr — and why you'd switch.
MinerU
Heavyweight document-to-markdown/JSON parser — PDFs plus Office (docx/pptx/xlsx) through layout analysis and OCR into LLM-ready output for RAG and agentic pipelines. 73k stars, self-hostable.
Why switchSame job — complex documents into LLM-ready data. MinerU is the batteries-included extraction toolkit; Chunkr is an API-shaped service adding semantic chunking and bounding-box citations for RAG pipelines.
Full comparison →olmocr
Open toolkit that linearizes messy PDFs — scans, tables, equations, handwriting — into clean ordered Markdown with a self-hosted vision-language model. Built for LLM training data and RAG ingestion.
Why switchBoth parse hard documents for AI consumption; olmocr bets on a VLM end-to-end, Chunkr on a layout-analysis pipeline with structured outputs and citations.
Full comparison →chandra
Datalab's SOTA open OCR model: images/PDFs to structured HTML/Markdown/JSON with layout, tables, forms, checkboxes, handwriting and math, in 90+ languages. Local HF or vLLM inference.
Why switchOverlapping document-intelligence job at different layers: chunkr is the deployed pipeline API (layout + OCR + chunking); Chandra is the end-to-end OCR model you would slot into such a pipeline.
Full comparison →