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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
Airbyte logo
Airbyte
✓ verifiedFreemium

Open-source data-movement platform now adding a context/action layer for AI agents; 600+ connectors and flexible pricing.

222K visits/mo
Quilter logo
Quilter
✓ verifiedPaid

Reinforcement-learning engine that auto-places and routes PCB layouts from existing CAD files, validated against physical constraints.

68K visits/mo
Browserless logo
Browserless
✓ verifiedFreemium

Managed headless-Chrome infrastructure that runs Puppeteer/Playwright scripts at scale with anti-bot bypass, so teams skip browser ops.

242K 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

Agents Free: $0/mo (1000 AOs)
Agents Individual: $29/mo (5000 AOs)
Agents Team: $299/mo (10,000 AOs)
Data Standard: from $10/mo
Data Plus: from $500/mo

No public pricing

Free: $0 (1k units/mo, 2 browsers)
Prototyping: $25/mo (20k units)
Starter: $140/mo (180k units)
Scale: $350/mo (500k units)

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
  • 600+ data connectors
  • ELT replication and CDC
  • Open-source and managed cloud options
  • Airbyte Agents context store (MCP/SDK/CLI)
  • Capacity- and volume-based pricing
  • Governance: SSO, RBAC, encryption
  • Imports existing projects from major ECAD tools
  • Generates thousands of candidate board layouts via reinforcement learning
  • Flags bypass capacitors, impedance nets, and differential pairs for review
  • Supports parallel iteration across stack-ups and manufacturers
  • Transparent design review against a full constraint checklist
  • Returns files in the same CAD format for DRC and fab-file generation
  • Managed headless browsers (browser-as-a-service)
  • Drop-in Puppeteer/Playwright support
  • Anti-bot bypass and CAPTCHA solving
  • Screenshot, PDF and download APIs
  • MCP server for AI agents
  • Self-hosted and cloud deployment
  • Live debugger and observability
  • 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
  • Building data pipelines to warehouses
  • Syncing SaaS data for analytics
  • Giving AI agents live business context
  • Speeding up IC evaluation board layout from weeks to hours
  • Cutting design validation board cycles from months to days
  • Reducing backplane and interconnect board bring-up time
  • Iterating multiple layout candidates in parallel before fabrication
  • Run web scraping without infrastructure headaches
  • Automate browser workflows and tests
  • Give AI agents a reliable browser
  • Generate screenshots and PDFs via API
  • Prototyping an AI workflow quickly
  • Sharing a custom AI mini-app
  • Automating a task with chained prompts
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