Question 1

Is Haystack better than Docling?

Accepted Answer

It depends on your use case. Haystack is known for Open-source LLM framework for building NLP pipelines, while Docling IBM's document conversion tool for AI pipelines. See our full comparison above for a detailed breakdown.

Question 2

Is Haystack free?

Accepted Answer

Haystack pricing: Free (open-source).

Question 3

Is Docling free?

Accepted Answer

Docling pricing: Free (open-source).

Question 4

What are the main differences between Haystack and Docling?

Accepted Answer

Haystack and Docling differ in features, pricing, and platform support. Haystack: Open-source LLM framework for building NLP pipelines. Docling: IBM's document conversion tool for AI pipelines. See the full side-by-side comparison above for details.

Feature	Haystack	Docling
Category	Data & ETL	Data & ETL
Pricing	Free (open-source)	Free (open-source)
GitHub Stars	✓ More stars 18k	15k
Platforms	Linux, macOS, Windows, Docker	Linux, macOS, Windows
Key Features	✓ Pipeline builder ✓ RAG ✓ Document processing ✓ Model serving ✓ REST API	✓ PDF conversion ✓ Table extraction ✓ OCR ✓ Markdown output ✓ LlamaIndex integration
Pros	+ Production-grade RAG pipelines + Clean pipeline abstraction + Strong documentation + Multiple backend support + Enterprise ready	+ Excellent PDF parsing + Table extraction + OCR capability + IBM Research quality + LlamaIndex integration
Cons	− Steeper learning curve than LlamaIndex − Less community content − Breaking changes between versions − Heavy framework	− Heavy dependencies − Can be slow on large docs − Python only − Complex output format
Tags	ragnlppipelineopen-source	documentspdfconversionibm

HaystackvsDocling

Haystack

Docling

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