LangChain vs pgvector vs Qdrant vs Haystack

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

Your tool
LangChain
vs
Competitor 1
pgvector
Competitor 2
Qdrant
Competitor 3
Haystack
Compare
4 tools · best value per row highlighted
Your tool LangChain
langchain.com
Framework for building with large language models
Remove
Competitor pgvector
github.com
pgvector is an open-source extension that adds vector similarity search to Postgres.
Make main Remove
Competitor Qdrant
qdrant.tech
Vectors at scale
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
Traffic estimated monthly website traffic
Monthly visits
3.4Mvisits/mo
—
310.5Kvisits/mo
—
MoM change
▲ 0.7%
—
▲ 0.3%
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6-month growth
+21.0%
—
-6.1%
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Global rank web
#13,384
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#175,101
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Avg. last 3 months
3.3M
—
306.8K
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Bounce rate lower is better
42%
—
50%
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Pages / visit
6.2
—
1.8
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Visit duration
5m 29s
—
1m 13s
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Traffic sources
● Direct 73% · ● Referral 24%
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● Direct 75% · ● Referral 24%
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LangChainpgvectorQdrantHaystack
0850.7K1.7M2.6M3.4MLangChain · 3MLangChain · 2.9MLangChain · 3.2MLangChain · 2.8MLangChain · 3.4MLangChain · 3.2MLangChain · 3.1MLangChain · 3.4MLangChain · 3.4MQdrant · 315.9KQdrant · 319.2KQdrant · 363.4KQdrant · 330.7KQdrant · 354.7KQdrant · 315.9KQdrant · 300.2KQdrant · 309.7KQdrant · 310.5K100K1M10MLangChain · 3MLangChain · 2.9MLangChain · 3.2MLangChain · 2.8MLangChain · 3.4MLangChain · 3.2MLangChain · 3.1MLangChain · 3.4MLangChain · 3.4MQdrant · 315.9KQdrant · 319.2KQdrant · 363.4KQdrant · 330.7KQdrant · 354.7KQdrant · 315.9KQdrant · 300.2KQdrant · 309.7KQdrant · 310.5KNov '25DecJan '26FebMarAprMayJunJul
Pricing
Model
Freemium
Free
Freemium
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Starting price
$39per month · free tier available
Free
Free tier
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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
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Capabilities input → output
Input
CodeText
Data
Data
CodeDocuments
Output
Apps
Data
Data
Apps
Skill level
Advanced
Advanced
Advanced
Advanced
Categories
Development & CodeProductivity & OfficeAI AgentAI Developer Tools
Development & CodeAI Developer Tools
Development & CodeAI Developer Tools
Development & CodeProductivity & OfficeAI AgentAI Developer Tools
Tasks what each tool can do · 0 shared · core   partial
Tasks covered
6
3
7
5
Developer tools
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Agent creation
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Agents
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LLM development
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Vector databases
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Vector indexes
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Development
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Database search
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Databases
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PostgreSQL assistance
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Agent memory
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Agent testing
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Database management
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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.