Stack AI vs Haystack vs CrewAI vs Activepieces

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

Your tool
Stack AI
vs
Competitor 1
Haystack
Competitor 2
CrewAI
Competitor 3
Activepieces
Compare
4 tools · best value per row highlighted
Your tool 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.
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Competitor CrewAI
crewai.com
CrewAI is a multi-agent platform that covers the full agent lifecycle for businesses: discover what to automate, build agents, govern them in production and optimize them over time.
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Competitor Activepieces
activepieces.com
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Traffic estimated monthly website traffic
Monthly visits
6.3Kvisits/mo
—
476.6Kvisits/mo
221.7Kvisits/mo
MoM change
▼ 57.9%
—
▼ 10.3%
▲ 1.8%
6-month growth
-93.7%
—
-5.3%
-10.0%
Global rank web
#1,700,092
—
#107,487
#174,361
Avg. last 3 months
13.9K
—
564.3K
226.6K
Bounce rate lower is better
39%
—
46%
39%
Pages / visit
1.8
—
2.6
3.8
Visit duration
14s
—
1m 32s
2m 39s
Traffic sources
—
—
● Direct 75% · ● Referral 23%
● Direct 74% · ● Referral 24%
Stack AIHaystackCrewAIActivepieces
0171.3K342.6K513.9K685.2KStack 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 · 6.3KCrewAI · 408.9KCrewAI · 417.1KCrewAI · 521.4KCrewAI · 503.5KCrewAI · 610.1KCrewAI · 646.1KCrewAI · 685.2KCrewAI · 531.1KCrewAI · 476.6KActivepieces · 209.7KActivepieces · 239.2KActivepieces · 236KActivepieces · 187.9KActivepieces · 246.2KActivepieces · 223.6KActivepieces · 218.4KActivepieces · 240.1KActivepieces · 217.9KActivepieces · 221.7K1K10K100K1MStack 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 · 6.3KCrewAI · 408.9KCrewAI · 417.1KCrewAI · 521.4KCrewAI · 503.5KCrewAI · 610.1KCrewAI · 646.1KCrewAI · 685.2KCrewAI · 531.1KCrewAI · 476.6KActivepieces · 209.7KActivepieces · 239.2KActivepieces · 236KActivepieces · 187.9KActivepieces · 246.2KActivepieces · 223.6KActivepieces · 218.4KActivepieces · 240.1KActivepieces · 217.9KActivepieces · 221.7KNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
—
Free
Freemium
Starting price
Free tier
—
Free
$20per month · free tier available
Free tier
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Free trial
–
–
–
API access
–
–
Plans
—
—
Basic FreeEnterprise $0
Free FreePlus $20/moTeam $200/mo
Capabilities input → output
Input
DataDocumentsText
CodeDocuments
Text
Text
Output
Apps
Apps
AppsCode
Apps
Skill level
Intermediate
Advanced
Advanced
Intermediate
Categories
Development & CodeProductivity & OfficeAI AgentAI Workflow+1 more
Development & CodeProductivity & OfficeAI AgentAI Developer Tools
Development & CodeProductivity & OfficeAI AgentAI Developer Tools+2 more
Productivity & OfficeAI AgentAI Workflow
Tasks what each tool can do · 1 shared · core   partial
Tasks covered
3
2
9
4
Agents
Agent creation
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Workflows
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No-code
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Agent collaboration
–
–
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Agent management
–
–
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Developer tools
–
–
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Agent testing
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–
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Development
–
–
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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.