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Side-by-side features, use cases and pricing — because the right pick depends on your job and budget, not just the ranking.

devActivity logo
devActivity
✓ verifiedFreemium

GitHub-based engineering analytics that tracks contributions, automates performance reviews and adds gamification for dev teams.

52K visits/mo
CSS Picker logo
CSS Picker
✓ verifiedFreemium

Browser extension and AI generator that copies CSS from any site and turns designs or screenshots into code.

30K visits/mo
Labelbox logo
Labelbox
✓ verifiedFreemium

Data-labeling and RL data platform supplying training data, environments and evaluation for frontier AI labs and enterprises.

1.1M visits/mo
Atoms logo
Atoms
✓ verifiedFreemium

No-code AI platform using multi-agent 'employees' to research, build, deploy and market full-stack apps from a prompt.

619K visits/mo15K saves
Firebase Studio logo
Firebase Studio
✓ verifiedFree

Browser-based AI dev workspace by Google for full-stack apps; being sunset on 22 Mar 2027, no new workspaces.

531K visits/mo
Pricing
Free: $0/contributor (up to 7 contributors, 90-day retention)
Premium: $10/contributor (unlimited contributors, AI insights)
Free: $0 (limited credits)
Monthly: $19.99/mo (unlimited generations)
Yearly: $89/yr
Lifetime: $150 one-time

No public pricing

Free: $0/mo (15 credits/day)
Pro: from $20/mo (100 credits)
Max: from $100/mo (500 credits)

No public pricing

Core features
  • Contribution and work-quality analytics
  • Automated, AI-powered performance reviews
  • Retrospective insights
  • Operational bottleneck alerts
  • Gamification with XP, levels and leaderboards
  • Uses Git metadata without accessing source code
  • Copy CSS/HTML from any website
  • Image and screenshot to code
  • AI React and HTML generators
  • Framework conversion (React, Tailwind, Vue)
  • Interactive editor with live preview
  • Free HTML-to-JSX and CSS-to-Tailwind tools
  • Data labeling across modalities
  • RL environments and reward signals
  • Custom model evaluations and benchmarks
  • Human preference/annotation from an expert network
  • Recursion RL platform for enterprise agents
  • Robotics data (video, trajectories)
  • Multi-agent AI team (PM, engineer, analyst, etc.)
  • Chat-to-build full-stack apps
  • Built-in backend: auth, database, Stripe
  • SEO and ads agents
  • Race Mode across multiple models
  • Code export and GitHub sync
  • Cloud workspaces for full-stack development
  • App Prototyping agent from natural language
  • Gemini AI for coding, debugging and docs
  • Repo import from GitHub, GitLab and Bitbucket
  • Web previews and Android emulators
  • Deploy to Firebase App Hosting, Hosting or Cloud Run
Use cases
  • Automating developer performance reviews
  • Spotting delivery bottlenecks
  • Generating retrospective insights
  • Motivating teams via gamification
  • Cloning UI elements from live sites
  • Turning mockups into code
  • Generating React components fast
  • Converting CSS to Tailwind
  • Building training and evaluation datasets
  • Post-training and RLHF for models
  • Benchmarking model capability
  • Training enterprise specialist agents
  • Build SaaS and e-commerce apps
  • Launch MVPs in minutes
  • Add payments and user login
  • Drive SEO and ad growth
  • Export code and self-host
  • Prototyping apps from a prompt or mockup
  • Building full-stack apps in the browser
  • Collaborating and sharing preview URLs
  • Deploying and monitoring apps quickly
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