LangChain vs Replit 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
Replit
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 Replit
replit.com
Code, run, and deploy from your browser
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
11.9Mvisits/mo
—
324Kvisits/mo
MoM change
▲ 0.7%
▼ 9.4%
—
▼ 21.0%
6-month growth
+21.0%
-7.3%
—
-29.5%
Global rank web
#13,384
#3,961
—
#118,014
Avg. last 3 months
3.3M
12.6M
—
398.3K
Bounce rate lower is better
42%
41%
—
46%
Pages / visit
6.2
5.2
—
2.8
Visit duration
5m 29s
6m 40s
—
1m 57s
Traffic sources
● Direct 73% · ● Referral 24%
● Direct 89% · ● Referral 8%
—
● Direct 74% · ● Referral 20%
LangChainReplitHaystackLlamaIndex
03.4M6.8M10.2M13.6MLangChain · 3MLangChain · 2.9MLangChain · 3.2MLangChain · 2.8MLangChain · 3.4MLangChain · 3.2MLangChain · 3.1MLangChain · 3.4MLangChain · 3.4MReplit · 9.5MReplit · 10.7MReplit · 11.9MReplit · 11.6MReplit · 12.8MReplit · 12.2MReplit · 13.6MReplit · 12.9MReplit · 13.1MReplit · 11.9MLlamaIndex · 438.2KLlamaIndex · 470.7KLlamaIndex · 444KLlamaIndex · 423.8KLlamaIndex · 459.5KLlamaIndex · 421.3KLlamaIndex · 455KLlamaIndex · 461KLlamaIndex · 410KLlamaIndex · 324K100K1M10M100MLangChain · 3MLangChain · 2.9MLangChain · 3.2MLangChain · 2.8MLangChain · 3.4MLangChain · 3.2MLangChain · 3.1MLangChain · 3.4MLangChain · 3.4MReplit · 9.5MReplit · 10.7MReplit · 11.9MReplit · 11.6MReplit · 12.8MReplit · 12.2MReplit · 13.6MReplit · 12.9MReplit · 13.1MReplit · 11.9MLlamaIndex · 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
$20per 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
Core $20/moPro $100/moEnterprise Custom
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Free FreeStarter Custom/moPro Custom/moEnterprise Custom/mo
Capabilities input → output
Input
CodeText
Text
CodeDocuments
DocumentsImages
Output
Apps
AppsCode
Apps
DataText
Skill level
Advanced
Intermediate
Advanced
Advanced
Categories
Development & CodeProductivity & OfficeAI AgentAI Developer Tools
Development & CodeAI App BuilderAI Coding AssistantAI Website Builder
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
5
7
12
Agents
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LLM development
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Developer tools
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Development
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Agent creation
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Coding
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Data extraction
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Document data extraction
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Document processing
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RAG
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Debugging
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OCR
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Text extraction
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Website building
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Agent memory
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Agent testing
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Backend development
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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
▲ 2
▲ 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.