pgvector vs Weaviate vs Langflow

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

Your tool
pgvector
vs
Competitor 1
Weaviate
Competitor 2
Langflow
Competitor 3
Suggested competitors for pgvector: Chroma88% InfinityFlow88% Zilliz Cloud87% Qdrant84% Haystack80% Pinecone80% DeepWiki76% Bito AI75%
Compare
3 tools · best value per row highlighted
Your tool pgvector
github.com
pgvector is an open-source extension that adds vector similarity search to Postgres.
Remove
Competitor Weaviate
weaviate.io
Search that understands meaning
Make main Remove
Competitor Langflow
langflow.org
Drag and drop AI
Make main Remove
Traffic estimated monthly website traffic
Monthly visits
—
154.2Kvisits/mo
215.3Kvisits/mo
MoM change
—
▼ 11.8%
▼ 0.7%
6-month growth
—
-7.0%
-4.9%
Global rank web
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#293,589
#217,191
Avg. last 3 months
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155.7K
225.2K
Bounce rate lower is better
—
41%
44%
Pages / visit
—
1.9
2.2
Visit duration
—
50s
1m 04s
Traffic sources
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● Direct 82% · ● Referral 18%
● Direct 76% · ● Referral 24%
pgvectorWeaviateLangflow
073.8K147.7K221.5K295.3KWeaviate · 226KWeaviate · 193.3KWeaviate · 188.9KWeaviate · 165.9KWeaviate · 184.5KWeaviate · 169.2KWeaviate · 137.9KWeaviate · 174.8KWeaviate · 154.2KLangflow · 295.3KLangflow · 247KLangflow · 269.8KLangflow · 226.5KLangflow · 239.5KLangflow · 229.4KLangflow · 243.6KLangflow · 216.8KLangflow · 215.3K100K1MWeaviate · 226KWeaviate · 193.3KWeaviate · 188.9KWeaviate · 165.9KWeaviate · 184.5KWeaviate · 169.2KWeaviate · 137.9KWeaviate · 174.8KWeaviate · 154.2KLangflow · 295.3KLangflow · 247KLangflow · 269.8KLangflow · 226.5KLangflow · 239.5KLangflow · 229.4KLangflow · 243.6KLangflow · 216.8KLangflow · 215.3KNov '25DecJan '26FebMarAprMayJunJul
Pricing
Model
Free
Freemium
Free
Starting price
Free
$45per month · free tier available
Free
Free tier
Free trial
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–
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API access
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Plans
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Free FreeFlex $45/moPremium $0
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Capabilities input → output
Input
Data
DataImagesText
Text
Output
Data
Data
Apps
Skill level
Advanced
Advanced
Advanced
Categories
Development & CodeAI Developer Tools
Development & CodeAI Developer Tools
Chatbots & CompanionsDevelopment & CodeProductivity & OfficeAI Agent+3 more
Tasks what each tool can do · 1 shared · core   partial
Tasks covered
7
6
9
Developer tools
Vector databases
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LLM development
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APIs
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Agents
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No-code
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Vector indexes
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Agent creation
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–
Chatbots
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–
Databases
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–
Development
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PostgreSQL assistance
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Workflows
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Information retrieval
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RAG
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SQL
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Self hosted
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Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 0
▲ 0
▲ 0
Saves
0
0
0
Reviews
0
0
0
Prompts
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.