LangChain vs LlamaIndex vs Semantic Kernel vs Langflow

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

Your tool
LangChain
vs
Competitor 1
LlamaIndex
Competitor 2
Semantic Kernel
Competitor 3
Langflow
Compare
4 tools · best value per row highlighted
Your tool LangChain
langchain.com
Framework for building with large language models
Remove
Competitor LlamaIndex
llamaindex.ai
Connect AI to your data
Make main Remove
Competitor Semantic Kernel
learn.microsoft.com
Semantic Kernel is a lightweight, open-source development kit from Microsoft for building AI agents and adding AI models to existing C#, Python or Java codebases.
Make main Remove
Competitor Langflow
langflow.org
Drag and drop AI
Make main Remove
Traffic estimated monthly website traffic
Monthly visits
3.4Mvisits/mo
324Kvisits/mo
—
215.3Kvisits/mo
MoM change
▲ 0.7%
▼ 21.0%
—
▼ 0.7%
6-month growth
+21.0%
-29.5%
—
-4.9%
Global rank web
#13,384
#118,014
—
#217,191
Avg. last 3 months
3.3M
398.3K
—
225.2K
Bounce rate lower is better
42%
46%
—
44%
Pages / visit
6.2
2.8
—
2.2
Visit duration
5m 29s
1m 57s
—
1m 04s
Traffic sources
● Direct 73% · ● Referral 24%
● Direct 74% · ● Referral 20%
—
● Direct 76% · ● Referral 24%
LangChainLlamaIndexSemantic KernelLangflow
0850.7K1.7M2.6M3.4MLangChain · 3MLangChain · 2.9MLangChain · 3.2MLangChain · 2.8MLangChain · 3.4MLangChain · 3.2MLangChain · 3.1MLangChain · 3.4MLangChain · 3.4MLlamaIndex · 438.2KLlamaIndex · 470.7KLlamaIndex · 444KLlamaIndex · 423.8KLlamaIndex · 459.5KLlamaIndex · 421.3KLlamaIndex · 455KLlamaIndex · 461KLlamaIndex · 410KLlamaIndex · 324KLangflow · 295.3KLangflow · 247KLangflow · 269.8KLangflow · 226.5KLangflow · 239.5KLangflow · 229.4KLangflow · 243.6KLangflow · 216.8KLangflow · 215.3K100K1M10MLangChain · 3MLangChain · 2.9MLangChain · 3.2MLangChain · 2.8MLangChain · 3.4MLangChain · 3.2MLangChain · 3.1MLangChain · 3.4MLangChain · 3.4MLlamaIndex · 438.2KLlamaIndex · 470.7KLlamaIndex · 444KLlamaIndex · 423.8KLlamaIndex · 459.5KLlamaIndex · 421.3KLlamaIndex · 455KLlamaIndex · 461KLlamaIndex · 410KLlamaIndex · 324KLangflow · 295.3KLangflow · 247KLangflow · 269.8KLangflow · 226.5KLangflow · 239.5KLangflow · 229.4KLangflow · 243.6KLangflow · 216.8KLangflow · 215.3KNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
Freemium
—
Free
Starting price
$39per month · free tier available
Free tier
—
Free
Free tier
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Free trial
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–
–
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API access
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Plans
Developer FreePlus $39/moEnterprise Custom/mo
Free FreeStarter Custom/moPro Custom/moEnterprise Custom/mo
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Capabilities input → output
Input
CodeText
DocumentsImages
CodeText
Text
Output
Apps
DataText
Apps
Apps
Skill level
Advanced
Advanced
Advanced
Advanced
Categories
Development & CodeProductivity & OfficeAI AgentAI Developer Tools
Development & CodeProductivity & OfficeAI AgentAI Developer Tools+1 more
Development & CodeProductivity & OfficeAI AgentAI Developer Tools
Chatbots & CompanionsDevelopment & CodeProductivity & OfficeAI Agent+3 more
Tasks what each tool can do · 1 shared · core   partial
Tasks covered
6
12
2
9
Agents
Agent creation
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LLM development
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Developer tools
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Development
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Workflows
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Data extraction
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–
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Document data extraction
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–
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Document processing
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No-code
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–
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Chatbots
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OCR
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–
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Text extraction
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–
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APIs
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–
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Agent testing
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–
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Information retrieval
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–
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Medical data extraction
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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.