LangChain vs Developer Toolkit vs Haystack vs LlamaIndex

Which one fits you in 2026? Traffic, pricing, input → output, tasks and community side by side.

Your tool
LangChain
vs
Competitor 1
Developer Toolkit
Competitor 2
Haystack
Competitor 3
LlamaIndex
Compare
4 tools · best value per row highlighted
Your tool LangChain
langchain.com
Framework for building with large language models
Remove
Competitor Developer Toolkit
developertoolkit.ai
Some features sit in COMING SOON—printable cheat-sheets and team analytics aren't ready yet
Make main Remove
Competitor Haystack
haystack.deepset.ai
Haystack is an open-source AI orchestration framework from deepset for building production-grade LLM applications and agents.
Make main Remove
Competitor LlamaIndex
llamaindex.ai
Connect AI to your data
Make main Remove
Traffic estimated monthly website traffic
Monthly visits
3.4Mvisits/mo
9.7Kvisits/mo
—
324Kvisits/mo
MoM change
▲ 0.7%
▲ 46.3%
—
▼ 21.0%
6-month growth
+21.0%
+253.1%
—
-29.5%
Global rank web
#13,384
#2,468,968
—
#118,014
Avg. last 3 months
3.3M
6.8K
—
398.3K
Bounce rate lower is better
42%
39%
—
46%
Pages / visit
6.2
1.4
—
2.8
Visit duration
5m 29s
1s
—
1m 57s
Traffic sources
● Direct 73% · ● Referral 24%
—
—
● Direct 74% · ● Referral 20%
LangChainDeveloper ToolkitHaystackLlamaIndex
0850.7K1.7M2.6M3.4MLangChain · 3MLangChain · 2.9MLangChain · 3.2MLangChain · 2.8MLangChain · 3.4MLangChain · 3.2MLangChain · 3.1MLangChain · 3.4MLangChain · 3.4MDeveloper Toolkit · 3.1KDeveloper Toolkit · 3.2KDeveloper Toolkit · 913Developer Toolkit · 2.7KDeveloper Toolkit · 4KDeveloper Toolkit · 3.9KDeveloper Toolkit · 4KDeveloper Toolkit · 6.6KDeveloper Toolkit · 9.7KLlamaIndex · 438.2KLlamaIndex · 470.7KLlamaIndex · 444KLlamaIndex · 423.8KLlamaIndex · 459.5KLlamaIndex · 421.3KLlamaIndex · 455KLlamaIndex · 461KLlamaIndex · 410KLlamaIndex · 324K1001K10K100K1M10MLangChain · 3MLangChain · 2.9MLangChain · 3.2MLangChain · 2.8MLangChain · 3.4MLangChain · 3.2MLangChain · 3.1MLangChain · 3.4MLangChain · 3.4MDeveloper Toolkit · 3.1KDeveloper Toolkit · 3.2KDeveloper Toolkit · 913Developer Toolkit · 2.7KDeveloper Toolkit · 4KDeveloper Toolkit · 3.9KDeveloper Toolkit · 4KDeveloper Toolkit · 6.6KDeveloper Toolkit · 9.7KLlamaIndex · 438.2KLlamaIndex · 470.7KLlamaIndex · 444KLlamaIndex · 423.8KLlamaIndex · 459.5KLlamaIndex · 421.3KLlamaIndex · 455KLlamaIndex · 461KLlamaIndex · 410KLlamaIndex · 324KNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
Freemium
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Freemium
Starting price
$39per month · free tier available
$19.99per month
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Free tier
Free tier
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Free trial
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API access
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Plans
Developer FreePlus $39/moEnterprise Custom/mo
Solo Developer $19.99/moTeam $199.99/moEnterprise Custom
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Free FreeStarter Custom/moPro Custom/moEnterprise Custom/mo
Capabilities input → output
Input
CodeText
Text
CodeDocuments
DocumentsImages
Output
Apps
Text
Apps
DataText
Skill level
Advanced
Beginner-friendly
Advanced
Advanced
Categories
Development & CodeProductivity & OfficeAI AgentAI Developer Tools
Development & CodeAI Developer Tools
Development & CodeProductivity & OfficeAI AgentAI Developer Tools
Development & CodeProductivity & OfficeAI AgentAI Developer Tools+1 more
Tasks what each tool can do · 0 shared · core   partial
Tasks covered
6
3
7
12
Agents
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LLM development
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Developer tools
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Agent creation
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Development
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Data extraction
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Development guide
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Document data extraction
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Document processing
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RAG
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Tutorials
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Development guidance
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OCR
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Text extraction
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Agent memory
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Agent testing
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Information retrieval
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Medical data extraction
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Self hosted
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Workflows
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Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 1
▲ 0
▲ 0
▲ 0
Saves
0
0
0
0
Reviews
0
0
0
0
Prompts
0
0
0
0
Verified listing
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Traffic figures are third-party estimates for the tool's own domain; tools sharing a domain with a bigger product are not counted. Pricing is captured from each tool's site and may lag.