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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.

exa.ai logo
exa.ai
✓ verifiedFreemium

Search, crawling and research API built for AI agents, with token-efficient results and structured web-data enrichment.

761K visits/mo1.7K saves
DHTMLX Chatbot logo
DHTMLX Chatbot
✓ verifiedFree

Lightweight MIT-licensed JavaScript chatbot UI widget for building support-agent chat interfaces on top of any LLM.

92K visits/mo
Angular.dev logo
Angular.dev
✓ verifiedFree

Google's open-source TypeScript framework for building scalable web apps, featuring signals, reactivity and first-party tooling.

1.1M visits/mo
Builder.io logo
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
Kombai logo
Kombai
✓ verifiedFreemium

AI design engineer that designs UIs on a canvas and ships production frontend code in your own stack.

156K visits/mo
Pricing
Free: $0 (20,000 requests/mo)
Search: $7/1k requests
Contents: $1/1k pages
Deep Search: $12-15/1k requests
Monitors: $15/1k requests
Agent: $0.012-$1.00/run

No public pricing

No public pricing

Free: $0 per user/mo (60 agent credits)
Pro: $24/user/mo (500 credits)
Team: $40/user/mo
Free: $0 (300 credits/month)
Pro: $20/month (2,000 credits)
Team: $40/user/month
Core features
  • Web search API tuned for agents
  • Full-page contents with token-efficient highlights
  • Asynchronous agents for deep research and enrichment
  • Structured outputs with grounded citations
  • Web monitors that track new events on a schedule
  • Zero data retention and SOC 2 Type II controls
  • MIT-licensed and free to use
  • Lightweight (~65kb) JavaScript widget
  • 4 message display modes plus typewriter effect
  • Markdown support and chat history
  • Backend hook to integrate any LLM
  • Responsive, mobile-friendly, read-only mode
  • Signals-based fine-grained reactivity
  • Built-in control flow and deferrable views
  • Server-side rendering and hydration
  • First-party routing, forms and dependency injection
  • AI-forward tooling and MCP resources
  • In-browser tutorials and playground
  • 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
  • Design UIs on an infinite canvas
  • Production frontend code in your stack (400+ libraries)
  • Reuses your components, tokens, and hooks
  • In-browser editing with DevTools context
  • Design and code stay synced in your repo
  • Asset and animation generation
Use cases
  • Give coding agents current docs and repo context
  • Power chatbots with real-time web answers
  • Enrich company and people data at scale
  • Monitor the web for fresh events
  • Adding an AI chat UI to web apps
  • Building LLM-powered support agents
  • Embedding chat widgets in existing products
  • Prototyping chatbot interfaces
  • Building scalable single-page apps
  • Enterprise web application development
  • Performance-critical front ends
  • Learning modern web development
  • Convert designs to production code
  • Let non-developers edit pages visually
  • Manage content with a headless CMS
  • Collaborate across design, PM and engineering
  • Turning designs into production frontend code
  • Building landing pages and product UIs
  • Refining UI directly in the browser
  • Keeping design and code in sync
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