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Data OpsDocling Project

Docling

Toolkit that turns documents into AI-ready Markdown and JSON.

Category
Data Ops
Pricing
FREE
Platforms
CLIAPI
Models
Model-agnostic
Verified
Jun 8, 2026

A document-processing toolkit that converts PDF, DOCX, PPTX, XLSX, HTML, images, and audio into clean Markdown or JSON for LLM and RAG pipelines. It does advanced PDF understanding — page layout, reading order, table structure, and OCR for scans — and ships a hybrid chunker plus native LangChain and LlamaIndex integrations. Small enough to run on a laptop via a Python API or CLI; MIT-licensed and community-governed.

Capabilities 3

What it actually does — grouped by capability family.

  • Document parsing (structured) (primary capability)
  • OCR / scanned-document extraction (secondary capability)
  • Transcription (STT) (secondary capability)

Pros & cons

  • Runs on a laptop via Python API or CLI
  • OCR for scans, hybrid chunker built in
  • IBM Research origin, now LF AI project
  • Wide input format and export support
  • Lower accuracy than top hosted parsers
  • No managed cloud / SLA out of the box
  • Setup and tuning effort vs. an API
  • Heavier compute for OCR-heavy docs

Tags

Further reading

View all Data Ops
  • View Unstructured details
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    Unstructured

    Unstructured

    ETL for LLMs — turn PDFs, decks, and emails into clean, structured data.

    Ingests 64+ file types and partitions, chunks, enriches, and embeds them into LLM-ready output, handling OCR, tables, and document hierarchy. An open-source library plus a low-code platform and API; a staple preprocessing layer for production RAG.

    64+ file types ingested
    OSS quality trails hosted partition models
    • document-etl
    • preprocessing
    • rag
    • open-source
  • View Reducto details
    Data OpsFREEMIUM

    Reducto

    Reducto

    Agentic document parsing and extraction for AI teams, via one API.

    A document-intelligence API that parses, splits, extracts, and edits PDFs, images, spreadsheets, and slides into clean, structured output for RAG and AI pipelines. It blends custom in-house models with frontier ones and bills via usage credits, automatically discounting pages it can parse without the heavier pipeline.

    Strong on complex/nested table layouts
    API-only, no app UI
    • document-parsing
    • ocr
    • extraction
    • rag
  • View Firecrawl details
    Data OpsFREEMIUMOpen core

    Firecrawl

    Firecrawl

    Turn any website into clean, LLM-ready data — scrape, crawl, search.

    A web data API for AI — scrape, crawl, map, and search pages into clean markdown or structured JSON, handling proxies, anti-bot, and JS rendering for you. Open-source core (AGPL) plus a hosted service; a default web-ingestion layer for agents and RAG pipelines.

    Clean markdown / structured JSON output
    AGPL license constrains redistribution
    • web-scraping
    • crawling
    • rag
    • open-source
  • View Chunkr details
    Data OpsFREEMIUMOpen core

    Chunkr

    Lumina AI

    Open-source document intelligence API for RAG-ready data.

    A document parsing and intelligence API that turns complex PDFs, slides, Word docs, and images into clean, LLM/RAG-ready chunks. Chunkr runs layout analysis, OCR, reading-order detection, semantic chunking, and schema-based extraction, emitting HTML, Markdown, or JSON. Self-host the open-source pipeline or call the managed cloud API, which includes a free tier of 200 pages with no card required.

    Self-host or call the managed API
    Accuracy below Reducto on hard layouts
    • document-parsing
    • ocr
    • rag
    • open-source