unstract alternatives
Curated alternatives to unstract — and why you'd switch.
chunkr
Document intelligence API in Rust: layout analysis, OCR with bounding boxes, and semantic chunking that turn PDFs, PPTs and Word docs into RAG-ready structured chunks.
Why switchBoth are self-hostable document-intelligence services, split by output: Chunkr produces layout-aware RAG-ready chunks; Unstract produces schema-shaped structured fields via prompt-defined extraction, deployable as APIs and ETL.
Full comparison →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 switchParser vs platform: MinerU converts documents to LLM-ready markdown/JSON; Unstract sits a level up — prompt-engineered field extraction with deployment, connectors and pipeline management around it. Many stacks front Unstract-style extraction with a MinerU-style parser.
Full comparison →