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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Google Opal
✓ verifiedFree
Google Labs experiment for building and sharing AI mini-apps from natural-language prompts, no coding required.
2.1M visits/mo
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Builder.io
✓ verifiedFreemium
Visual development platform with AI design-to-code, a visual editor and headless CMS so teams and agents ship UI in real code.
806K visits/mo
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Lovable
✓ verifiedFreemium
AI app builder that turns chat prompts into working web apps and sites, with credit-based build and deploy.
35M visits/mo69K saves
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Polymet
✓ verifiedPaid
AI product-design tool that turns prompts or images into editable UI designs and exports production-ready frontend code.
7.7K visits/mo588 saves
Pricing
No public pricing
Free: $0 per user/mo (60 agent credits)
Pro: $24/user/mo (500 credits)
Team: $40/user/mo
No public pricing
No public pricing
Core features
- ✦Build AI mini-apps from natural-language prompts
- ✦Visual editor for prompt/tool workflows
- ✦Share created apps with others
- ✦No-code AI app prototyping
- ✦AI design-to-code (Figma to code)
- ✦Visual editor tied to your components
- ✦Headless/visual CMS
- ✦AI agents (Builder-Agent) that open PRs
- ✦Integrations: GitHub, GitLab, Bitbucket, Figma, VS Code
- ✦Roles, reviews and collaboration
- ✦Chat-to-app and website generation
- ✦Real-time prototype building
- ✦One-click deploy and hosting
- ✦Templates to start projects
- ✦Credit-based building with shared workspaces
- ✦You own your code and data
- ✦Generate designs from text prompts, images, or existing design systems
- ✦Figma import and export
- ✦Visual editor for layout, spacing, and color tweaks
- ✦Code editor with full manual control
- ✦GitHub, npm, and Storybook integration
- ✦Real-time team collaboration and shareable live demos
Use cases
- →Prototyping an AI workflow quickly
- →Sharing a custom AI mini-app
- →Automating a task with chained prompts
- →Convert designs to production code
- →Let non-developers edit pages visually
- →Manage content with a headless CMS
- →Collaborate across design, PM and engineering
- →Build web apps without coding
- →Prototype product ideas quickly
- →Create landing pages and sites
- →Ship internal tools
- →Product teams turning ideas into UI designs quickly
- →Designers wanting design output paired with usable frontend code
- →Startups accelerating idea-to-prototype workflows
- →Teams collaborating on design review with live shareable demos
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