Langflow vs Voiceflow vs Stack AI vs Hal

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

Your tool
Langflow
vs
Competitor 1
Voiceflow
Competitor 2
Stack AI
Competitor 3
Hal
Compare
4 tools · best value per row highlighted
Your tool Langflow
langflow.org
Drag and drop AI
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Competitor Voiceflow
voiceflow.com
Design conversations visually
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Competitor Stack AI
stack-ai.com
Connect AI models visually
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Competitor Hal
hal9.com
Hal9 is a powerful platform for quickly building and deploying fully customizable AI chatbots, powered by your data with complete privacy. In just under 5 minutes, you can create a tailored chatbot t
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Traffic estimated monthly website traffic
Monthly visits
215.3Kvisits/mo
385Kvisits/mo
6.3Kvisits/mo
3.4Kvisits/mo
MoM change
▼ 0.7%
▼ 5.8%
▼ 57.9%
▼ 10.9%
6-month growth
-4.9%
-35.3%
-93.7%
+60.6%
Global rank web
#217,191
#93,201
#1,700,092
#6,156,551
Avg. last 3 months
225.2K
407.5K
13.9K
3.9K
Bounce rate lower is better
44%
38%
39%
39%
Pages / visit
2.2
5.2
1.8
1.1
Visit duration
1m 04s
3m 07s
14s
—
Traffic sources
● Direct 76% · ● Referral 24%
● Direct 75% · ● Referral 24%
—
—
LangflowVoiceflowStack AIHal
0150K300K450.1K600.1KLangflow · 295.3KLangflow · 247KLangflow · 269.8KLangflow · 226.5KLangflow · 239.5KLangflow · 229.4KLangflow · 243.6KLangflow · 216.8KLangflow · 215.3KVoiceflow · 600.1KVoiceflow · 574.1KVoiceflow · 561.6KVoiceflow · 513.7KVoiceflow · 594.8KVoiceflow · 462.6KVoiceflow · 454KVoiceflow · 429.1KVoiceflow · 408.5KVoiceflow · 385KStack 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 · 6.3KHal · 934Hal · 2.1KHal · 1.3KHal · 2.1KHal · 6.4KHal · 6.9KHal · 4.5KHal · 3.8KHal · 3.4K1001K10K100K1MLangflow · 295.3KLangflow · 247KLangflow · 269.8KLangflow · 226.5KLangflow · 239.5KLangflow · 229.4KLangflow · 243.6KLangflow · 216.8KLangflow · 215.3KVoiceflow · 600.1KVoiceflow · 574.1KVoiceflow · 561.6KVoiceflow · 513.7KVoiceflow · 594.8KVoiceflow · 462.6KVoiceflow · 454KVoiceflow · 429.1KVoiceflow · 408.5KVoiceflow · 385KStack 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 · 6.3KHal · 934Hal · 2.1KHal · 1.3KHal · 2.1KHal · 6.4KHal · 6.9KHal · 4.5KHal · 3.8KHal · 3.4KNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Free
Freemium
Freemium
Freemium
Starting price
Free
Free tier
Free tier
$2,000per month
Free tier
–
Free trial
–
–
API access
–
Plans
—
—
—
Startups $2,000/mo
Capabilities input → output
Input
Text
DocumentsText
DataDocumentsText
CodeText
Output
Apps
Apps
Apps
Apps
Skill level
Advanced
Intermediate
Intermediate
Intermediate
Categories
Chatbots & CompanionsDevelopment & CodeProductivity & OfficeAI Agent+3 more
Business & MarketingChatbots & CompanionsProductivity & OfficeAI Agent+3 more
Development & CodeProductivity & OfficeAI AgentAI Workflow+1 more
Development & CodeAI Developer Tools
Tasks what each tool can do · 0 shared · core   partial
Tasks covered
9
13
7
4
Agents
–
Chatbots
–
No-code
–
Agent creation
–
Chatbot building
–
–
Workflows
–
–
APIs
–
–
Customer support
–
–
–
Customer support chatbot
–
–
–
Voice agents
–
–
–
Business automation
–
–
–
Call agents
–
–
–
Call center automation
–
–
–
Calls
–
–
–
Developer tools
–
–
–
Development
–
–
–
Document chat
–
–
–
LLM development
–
–
–
Process automation
–
–
–
Call answering
–
–
–
Finance workflow automation
–
–
–
Website to chatbot
–
–
–
Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 0
▲ 1
▲ 0
▲ 0
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.