AI OCR & Document Extractionfree

LangExtract (Google)

Python library extracting structured data from unstructured text with LLMs

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What LangExtract (Google) does

  • Python library extracting structured data from unstructured text with LLMs
  • Maps each extraction to its exact source span
  • Works with Gemini, OpenAI and local Ollama models
  • Interactive HTML visualization of results

LangExtract (Google) — straight answers

What is LangExtract (Google)?

LangExtract (Google) is listed under AI OCR & Document Extraction, in the Research & Learning category on Flocci AI Tools. Python library extracting structured data from unstructured text with LLMs. It is free, with no paid plan attached, and it lives at github.com.

Is LangExtract (Google) free?

LangExtract (Google) is listed as fully free — there is no paid tier attached to it in the catalog. That makes it one of the 397 entries on Flocci AI Tools with no upgrade path built in.

Can I use LangExtract (Google) in a browser, or is there an app?

LangExtract (Google) works in a normal browser tab with no install. It is available on self-hosting, an API and the web.

What can LangExtract (Google) do?

LangExtract (Google) does 4 things the catalog singles out: Python library extracting structured data from unstructured text with llms; maps each extraction to its exact source span; works with gemini, openai and local ollama models; interactive html visualization of results.

What is the best free alternative to LangExtract (Google)?

dots.ocr (dots.mocr) is the closest free alternative: it sits in the same AI OCR & Document Extraction sub-category and is free. MinerU, olmOCR and PaddleOCR-VL also start free. The full list is on the alternatives page.

See the full list →

LangExtract (Google) alternatives

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AskYourPDF

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freemium
  • Chat with any PDF plus auto-fill PDF forms
  • Embeddable document chatbot for websites
  • 5M+ users including MIT/Harvard/Oxford/Stanford
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PDF.ai

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  • Chat-with-PDF product plus a separate parse/extract/split PDF API
  • Popular ChatPDF-category alternative with API access for developers
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Humata

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freemium
  • Free tier: 60 pages, 10 answers, no card
  • Cited answers across many uploaded files at once
  • Paid tiers priced per extra page rather than per seat
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Mistral OCR 4

AI OCR & Document Extraction
freemium
  • Self-hostable single-container OCR model for regulated industries
  • 170 languages, bounding boxes and per-field confidence scores
  • Low per-thousand-page API pricing; free to try inside Le Chat
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LlamaParse

AI OCR & Document Extraction
freemium
  • Parses 90+ formats incl. complex tables/charts/handwriting into clean markdown
  • 300,000+ users, 1B+ documents processed
  • Free trial credits via LlamaCloud, then usage-based
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Reducto

AI OCR & Document Extraction
freemium
  • 15,000 free starter credits, no card required
  • Citation-ready structured JSON across 30+ file types
  • Edits extracted data back into original PDF/DOCX layout
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Head-to-head comparisons

LangExtract (Google) vs AskYourPDFLangExtract (Google) vs PDF.aiLangExtract (Google) vs HumataLangExtract (Google) vs Mistral OCR 4LangExtract (Google) vs LlamaParseLangExtract (Google) vs Reducto