Haystack vs Developer Toolkit vs Semantic Kernel vs LangChain

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

Your tool
Haystack
vs
Competitor 1
Developer Toolkit
Competitor 2
Semantic Kernel
Competitor 3
LangChain
Compare
4 tools · best value per row highlighted
Your tool Haystack
haystack.deepset.ai
Haystack is an open-source AI orchestration framework from deepset for building production-grade LLM applications and agents.
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 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 LangChain
langchain.com
Framework for building with large language models
Make main Remove
Traffic estimated monthly website traffic
Monthly visits
—
9.7Kvisits/mo
—
3.4Mvisits/mo
MoM change
—
▲ 46.3%
—
▲ 0.7%
6-month growth
—
+253.1%
—
+21.0%
Global rank web
—
#2,468,968
—
#13,384
Avg. last 3 months
—
6.8K
—
3.3M
Bounce rate lower is better
—
39%
—
42%
Pages / visit
—
1.4
—
6.2
Visit duration
—
1s
—
5m 29s
Traffic sources
—
—
—
● Direct 73% · ● Referral 24%
HaystackDeveloper ToolkitSemantic KernelLangChain
0850.7K1.7M2.6M3.4MDeveloper Toolkit · 3.1KDeveloper Toolkit · 3.2KDeveloper Toolkit · 913Developer Toolkit · 2.7KDeveloper Toolkit · 4KDeveloper Toolkit · 3.9KDeveloper Toolkit · 4KDeveloper Toolkit · 6.6KDeveloper Toolkit · 9.7KLangChain · 3MLangChain · 2.9MLangChain · 3.2MLangChain · 2.8MLangChain · 3.4MLangChain · 3.2MLangChain · 3.1MLangChain · 3.4MLangChain · 3.4M1001K10K100K1M10MDeveloper Toolkit · 3.1KDeveloper Toolkit · 3.2KDeveloper Toolkit · 913Developer Toolkit · 2.7KDeveloper Toolkit · 4KDeveloper Toolkit · 3.9KDeveloper Toolkit · 4KDeveloper Toolkit · 6.6KDeveloper Toolkit · 9.7KLangChain · 3MLangChain · 2.9MLangChain · 3.2MLangChain · 2.8MLangChain · 3.4MLangChain · 3.2MLangChain · 3.1MLangChain · 3.4MLangChain · 3.4MNov '25DecJan '26FebMarAprMayJunJul
Pricing
Model
—
Freemium
—
Freemium
Starting price
—
$19.99per month
—
$39per month · free tier available
Free tier
–
–
–
Free trial
–
–
–
API access
–
–
–
Plans
—
Solo Developer $19.99/moTeam $199.99/moEnterprise Custom
—
Developer FreePlus $39/moEnterprise Custom/mo
Capabilities input → output
Input
CodeDocuments
Text
CodeText
CodeText
Output
Apps
Text
Apps
Apps
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
Tasks what each tool can do · 0 shared · core   partial
Tasks covered
7
3
5
6
Agent creation
–
Agents
–
LLM development
–
Developer tools
–
Development guide
–
–
–
RAG
–
–
–
Tutorials
–
–
–
Development
–
–
–
Development guidance
–
–
–
API integrations
–
–
–
Agent memory
–
–
–
Agent testing
–
–
–
Self hosted
–
–
–
Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 0
▲ 0
▲ 0
▲ 1
Saves
0
0
0
0
Reviews
0
0
0
0
Prompts
0
0
0
0
Verified listing
–
–
–
–

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.