Langflow vs illumi vs Stack AI vs Haystack

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

Your tool
Langflow
vs
Competitor 1
illumi
Competitor 2
Stack AI
Competitor 3
Haystack
Compare
4 tools · best value per row highlighted
Your tool Langflow
langflow.org
Drag and drop AI
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Competitor illumi
illumi.one
Make main Remove
Competitor Stack AI
stack-ai.com
Connect AI models visually
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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
215.3Kvisits/mo
4.8Kvisits/mo
6.3Kvisits/mo
—
MoM change
▼ 0.7%
▲ 13.4%
▼ 57.9%
—
6-month growth
-4.9%
-37.4%
-93.7%
—
Global rank web
#217,191
#3,948,892
#1,700,092
—
Avg. last 3 months
225.2K
4.7K
13.9K
—
Bounce rate lower is better
44%
34%
39%
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Pages / visit
2.2
2.1
1.8
—
Visit duration
1m 04s
47s
14s
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Traffic sources
● Direct 76% · ● Referral 24%
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—
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LangflowillumiStack AIHaystack
073.8K147.7K221.5K295.3KLangflow · 295.3KLangflow · 247KLangflow · 269.8KLangflow · 226.5KLangflow · 239.5KLangflow · 229.4KLangflow · 243.6KLangflow · 216.8KLangflow · 215.3Killumi · 3.9Killumi · 6.1Killumi · 5.9Killumi · 6.7Killumi · 7.7Killumi · 5.9Killumi · 6.9Killumi · 4.9Killumi · 4.2Killumi · 4.8KStack AI · 143.4KStack AI · 153.7KStack AI · 167.9KStack AI · 160KStack AI · 99.4KStack AI · 35.9KStack AI · 17.4KStack AI · 20.6KStack AI · 14.9KStack AI · 6.3K1K10K100K1MLangflow · 295.3KLangflow · 247KLangflow · 269.8KLangflow · 226.5KLangflow · 239.5KLangflow · 229.4KLangflow · 243.6KLangflow · 216.8KLangflow · 215.3Killumi · 3.9Killumi · 6.1Killumi · 5.9Killumi · 6.7Killumi · 7.7Killumi · 5.9Killumi · 6.9Killumi · 4.9Killumi · 4.2Killumi · 4.8KStack AI · 143.4KStack AI · 153.7KStack AI · 167.9KStack AI · 160KStack AI · 99.4KStack AI · 35.9KStack AI · 17.4KStack AI · 20.6KStack AI · 14.9KStack AI · 6.3KNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Free
Freemium
Freemium
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Starting price
Free
$12per month · free tier available
Free tier
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Free tier
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Free trial
–
–
API access
–
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Plans
—
Starter FreePro $12/moTeam CustomDesign Partner $0
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Capabilities input → output
Input
Text
DocumentsText
DataDocumentsText
CodeDocuments
Output
Apps
Text
Apps
Apps
Skill level
Advanced
Beginner-friendly
Intermediate
Advanced
Categories
Chatbots & CompanionsDevelopment & CodeProductivity & OfficeAI Agent+3 more
Chatbots & CompanionsProductivity & OfficeAI ChatbotAI Mind Mapping
Development & CodeProductivity & OfficeAI AgentAI Workflow+1 more
Development & CodeProductivity & OfficeAI AgentAI Developer Tools
Tasks what each tool can do · 0 shared · core   partial
Tasks covered
9
3
5
5
Agents
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Agent creation
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No-code
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LLM development
–
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Workflows
–
–
Developer tools
–
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Visual workspace
–
–
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Chatbots
–
–
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Development
–
–
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APIs
–
–
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Agent memory
–
–
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Finance workflow automation
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–
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Knowledge maps
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–
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Virtual workspace
–
–
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Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 0
▲ 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.