Docling vs 
Unstructured
Docling vs Unstructured compared for 2026 — features, license, ease of use, performance and which one to choose. IBM-grade document understanding vs Turn any file into LLM-ready data.
Updated regularly · curated by OpenSourceAI.tech
Docling vs Unstructured at a glance
| Spec | Docling | Unstructured |
|---|---|---|
| Category | Document AI & OCR | Document AI & OCR |
| Type | Document parsing toolkit | ETL for documents |
| License | MIT | Apache-2.0 |
| Runs locally | Yes | Self-hosted |
| Primary language | Python | Python |
| Ease of use | Intermediate | Intermediate |
| Best for | teams building document pipelines for RAG | teams ingesting many file types into one pipeline |
| GitHub stars | 63.1k | 15.1k |
How Docling and Unstructured score
| Criterion | Docling | Unstructured |
|---|---|---|
| Popularity | 4.5 | 3.5 |
| Maintenance | 5.0 | 5.0 |
| Ease of use | 3.5 | 3.5 |
| Privacy | 5.0 | 4.5 |
| License freedom | 5.0 | 5.0 |
Scores are computed automatically from public signals — GitHub stars (popularity), recent commit activity (maintenance), license type (freedom), local-first design (privacy) and onboarding complexity (ease of use). Indicative, not a verdict.
What each one is
Docling
Docling parses PDFs, DOCX, PPTX and images into structured representations with layout, tables and reading order, designed to plug straight into RAG frameworks.
- Rich structured output: layout, tables, reading order
- First-class integrations with LangChain and LlamaIndex
- Backed by IBM Research, MIT-licensed
Unstructured
Unstructured extracts and normalizes content from PDFs, HTML, Word, emails and more into clean elements ready for embedding and RAG ingestion.
- One API for dozens of file formats
- Chunking strategies designed for RAG
- Widely adopted in the LLM data stack
Key differences
Docling is document parsing toolkit, while Unstructured is eTL for documents. Their licenses differ (MIT vs Apache-2.0), which matters if you ship a commercial product. They also differ in how they run (Yes vs Self-hosted). In short, Docling fits teams building document pipelines for RAG, and Unstructured fits teams ingesting many file types into one pipeline.
Which should you choose?
Choose Docling for teams building document pipelines for RAG. Choose Unstructured for teams ingesting many file types into one pipeline.
There is rarely one winner — many setups use both. The right pick depends on your hardware, your team's skills, and whether you value simplicity or control.
Frequently asked questions
Is Docling or Unstructured easier to use?
Both sit at a similar level (Intermediate). Your choice should come down to fit rather than difficulty.
Are Docling and Unstructured free?
Docling is free and open source (MIT), and Unstructured is free and open source (Apache-2.0). Neither charges for the core software.
Can I run Docling and Unstructured locally?
Docling: yes · Unstructured: self-hosted. Both can be used without sending your data to a third-party cloud where their setup allows.
Docling vs Unstructured — which should I pick in 2026?
Choose Docling for teams building document pipelines for RAG. Choose Unstructured for teams ingesting many file types into one pipeline.
People also compare
Explore more open-source AI
Browse thousands of open-source AI tools, models and projects — all curated in one place, updated daily.
Explore the directory →