Arize Phoenix vs Crawl4AI
Side-by-side comparison with live GitHub signals. Last updated April 1, 2026.
| Metric | Arize Phoenix | Crawl4AI |
|---|---|---|
| GitHub Stars | 8.5K | 63.1K |
| Contributors | 120 | 72 |
| Last Commit | Mar 28, 2026 | Mar 31, 2026 |
| Open Issues | — | 50 |
| License | open-source | open-source |
| Pricing | freemium | open-source |
| Free Tier | Yes | Yes |
| Category | dev-tools | dev-tools |
| Trending | Yes | No |
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About Arize Phoenix
Arize Phoenix is an open-source observability platform for LLM applications. It provides tracing for multi-step agent workflows, built-in evaluation with LLM-as-judge and code-based evals, dataset management for experiments, and a visual UI for debugging prompt/response pairs. Phoenix integrates with OpenTelemetry, LangChain, LlamaIndex, and OpenAI, and can run locally or in the cloud.
View full listingAbout Crawl4AI
Crawl4AI is a free, open-source web crawling and scraping tool optimized for LLMs. Handles JavaScript rendering, generates clean markdown, supports structured data extraction with LLMs, and runs 6x faster than alternatives. Features multi-URL crawling, session management, proxy support, and custom hooks. Fully local with no API keys required.
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