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Unstructured.io

Document ingestion for LLMs

Data Processing Free OSS / $499+/mo cloud
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What It Is

Unstructured.io handles PDF, HTML, DOCX, PPTX, XLS, and 20+ formats, extracting clean text and structure for LLM ingestion. The open-source library is free; their cloud API handles complex layouts better and supports more formats.

Strengths & Weaknesses

✓ Strengths

  • Supports most file types
  • Structure-aware extraction
  • OSS and cloud
  • Battle-tested

× Weaknesses

  • OSS setup complexity
  • Cloud pricing steep
  • Variable quality

Best Use Cases

RAG pipelinesEnterprise doc processingData engineering

Alternatives

LlamaParse
LLM-native document parsing
→
Firecrawl
Web crawler for LLM training data
→
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