Compare tools
Side-by-side features, use cases and pricing — because the right pick depends on your job and budget, not just the ranking.
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Fillout AI
✓ verifiedFreemium
No-code form builder with high traffic and broad features.
👁 4.2M/mo♥ 4.3K
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OpnForm
✓ verifiedPaid
Open-source AI form builder for free forms and surveys; strong adoption and traffic.
👁 30K/mo♥ 684
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Google Antigravity
✓ verifiedFreemium
Google's agentic AI development platform and IDE; official major-vendor product.
👁 22M/mo♥ 18K
Pricing
No public pricing
Free: $0 /month
Starter: $15 /month
Pro: $40 /month
Business: $75 /month
Free: $0
Pro (Monthly): $16 per month
Pro (Yearly): $16 per month (billed yearly)
Individual plan: $0/month
Team plan: Coming soon
Enterprise plan: Coming soon
Core features
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- ✦No-code form builder
- ✦Drag-and-drop interface
- ✦50+ customizable field types
- ✦Conditional logic
- ✦Payment collection
- ✦Scheduling forms
- ✦PDF generation
- ✦Workflow automation
- ✦Customizable branding
- ✦Integrations with other apps
- ✦AI Form Builder
- ✦Unlimited forms, fields, and responses (Free plan)
- ✦Form logic, URL pre-fill, Hidden fields
- ✦File uploads, Custom code, Webhooks
- ✦Customizable themes and thank you pages
- ✦Form Analytics
- ✦AI IDE Core with tab autocompletion and natural language code commands
- ✦Configurable, context-aware agent
- ✦Higher-level abstractions for monitoring agent activity and verification
- ✦Cross-surface agents for synchronized control across editor, terminal, and browser
- ✦Intuitive integration of user feedback
- ✦Agent-First Experience for managing multiple agents from a central mission control view
- ✦Access to agent models: Gemini 3 Pro, Claude Sonnet 4.5, GPT-OSS
Use cases
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- →Collecting payments through custom forms
- →Processing orders, registrations, and memberships
- →Capturing and managing leads
- →Booking meetings
- →Supporting customers
- →Streamlining internal processes
- →Conducting surveys and quizzes
- →Creating contact forms
- →Conducting surveys
- →Collecting internal announcements
- →Managing warehouse inventory check-ins
- →Gathering training feedback
- →Processing international job applications
- →Streamlining legal petitions
- →Supporting environmental initiatives
- →Frontend developers can streamline UX development by leveraging browser-in-the-loop agents to automate repetitive tasks.
- →Full stack developers can build production-ready applications with thoroughly designed artifacts and comprehensive verification tests.
- →Enterprise developers can streamline operations and reduce context switching by orchestrating agents across workspaces using the Agent Manager.
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