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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.

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
HTTPie logo
HTTPie
✓ verifiedFreemium

Human-friendly API testing client for terminal, desktop and web, known for readable syntax; the CLI is open source.

82K visits/mo
Prismic logo
Prismic
✓ verifiedFreemium

Headless CMS and page builder where marketing teams and AI agents assemble on-brand landing pages from reusable, developer-built sections.

1.2M visits/mo61 saves
RunningHub logo
RunningHub
✓ verifiedFreemium

All-in-one cloud platform combining ComfyUI workflows, AI apps, and model APIs for creators building image/video content pipelines.

1.4M visits/mo
Google Opal logo
Google Opal
✓ verifiedFree

Google Labs experiment for building and sharing AI mini-apps from natural-language prompts, no coding required.

2.1M visits/mo
Pricing

No public pricing

No public pricing

Free: $0/month (1 user, 4M API calls/month, 100GB CDN)
Starter: $10/month (3 users, 3 locales)
Small: $25/month (7 users, 4 locales)
Medium: $150/month (25 users, 5M API calls/month)
Platinum: $675/month (unlimited users, 10M API calls/month, 30-day free trial available)

Free trial available

No public pricing

No public pricing

Core features
  • 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
  • Human-friendly command-line HTTP client
  • Web and desktop GUI apps
  • Simple, readable request syntax
  • Request export/import and history
  • Path parameters and 'copy as command'
  • Open-source terminal version
  • Visual page builder for assembling pre-built sections
  • Slice Machine developer tooling for reusable components
  • AI-assisted page and copy generation
  • AI translation across locales
  • ChatGPT/Claude integration for bulk content edits
  • API-driven content delivery via CDN
  • Cloud-hosted ComfyUI workflow execution
  • Infinite canvas for iterative visual editing
  • Prebuilt quick-create AI apps and viral templates
  • Model, workflow and AI-application API access
  • Creator rewards and referral coin system
  • Access to trending models like Seedream and Seedance
  • Build AI mini-apps from natural-language prompts
  • Visual editor for prompt/tool workflows
  • Share created apps with others
  • No-code AI app prototyping
Use cases
  • Adding an AI chat UI to web apps
  • Building LLM-powered support agents
  • Embedding chat widgets in existing products
  • Prototyping chatbot interfaces
  • Testing REST APIs
  • Sending and inspecting HTTP requests
  • Debugging web services
  • Sharing API requests across a team
  • Marketing teams launching SEO or ABM landing pages quickly
  • Developers building a component library for non-technical editors
  • Multilingual sites needing synced translations
  • Agencies managing many client sites on one CMS
  • Running ComfyUI workflows without owning GPU hardware
  • Producing short-form marketing and e-commerce video content
  • Building custom AI-powered creative apps
  • Generating image/video assets via API for other products
  • Prototyping an AI workflow quickly
  • Sharing a custom AI mini-app
  • Automating a task with chained prompts
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