DeepYard

Crawl4AI vs promptfoo

Side-by-side comparison built from DeepYard's structured catalog. Content updated Aug 21, 2026.

Direct Answer

Crawl4AI suits teams needing open-source access, web scraping focus, and 79,014 GitHub stars in current listing data. promptfoo suits teams needing open-source access, evaluation focus, and 24,450 GitHub stars in current listing data. This summary reflects catalog metadata only for decision support, not independent testing.

What this comparison weighs

  • Pricing and free-tier availability
  • License model and deployment fit
  • GitHub adoption and contributor depth
  • Catalog tags, integrations, and supported workflows
C

Crawl4AI

Open-source web crawler optimized for LLMs and AI agents — 62K+ stars

OSSFree
79.0K2d ago82
Visit GitHub
p

promptfoo

Test and evaluate LLM prompts and agents — 11K+ stars

OSSFree
24.4Ktoday318
Visit GitHub
MetricCrawl4AIpromptfoo
GitHub Stars79.0K24.4K
Contributors82318
Last CommitAug 20, 2026Aug 21, 2026
Open Issues167515
Licenseopen-sourceopen-source
Pricingopen-sourceopen-source
Free TierYesYes
Categorydev-toolsdev-tools
TrendingNoNo

Choose Crawl4AI if you need

  • • Crawl4AI stands out for Web Scraping workflows that are not listed for promptfoo.
  • • Crawl4AI is the stronger pick when Langchain matters because that capability is listed only on its profile.
  • • Crawl4AI shows broader GitHub adoption with 79,014 stars versus 24,450 for promptfoo.

Choose promptfoo if you need

  • • promptfoo stands out for Evaluation workflows that are not listed for Crawl4AI.
  • • promptfoo is the stronger pick when Openai matters because that capability is listed only on its profile.
  • • promptfoo has a larger visible contributor base (318 vs 82).

Meaningful differences

  • • Workflow emphasis: Crawl4AI highlights Web Scraping, while promptfoo highlights Evaluation.
  • • GitHub adoption: Crawl4AI shows 79,014 stars versus 24,450 for promptfoo.
  • • Contributor count: Crawl4AI lists 82 contributors and promptfoo lists 318.

Shared capabilities

  • • Open Source
  • • Any Llm

Shared Tags

open-source

Only in Crawl4AI

web-scrapingcrawlerragmarkdownlocalpython

Only in promptfoo

evaluationtestingred-teamingsecurityci-cd

Limitations and evidence

  • • DeepYard compares structured public metadata; this is not an independent benchmark unless a test record is shown.
  • • Signals such as stars, contributors, and last commit indicate public activity, not purchase fit or runtime quality.
  • • Pricing and feature coverage reflect the stored listing snapshot and may lag vendor changes between refreshes.

Source links

Manifest content date: 2026-08-21

About 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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About promptfoo

promptfoo is an open-source tool for testing, evaluating, and red-teaming LLM applications. Run automated evaluations across multiple models and prompts, compare outputs side-by-side, detect regressions, and test for security vulnerabilities. Supports custom assertions, CI/CD integration, and model-graded evaluations.

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