Tool & TypeCore FeaturesBest Use CaseTechnical NeedsFree Plan DetailsBrightData (Cloud/API)Enterprise crawling, proxies, JS rendering, CAPTCHA solvingLarge-scale data collectionSome tech skill helpfulFree trial: 3 scrapers, 100 records each (about 300 records total)Crawlbase (Cloud/API)API crawling, anti-bot, proxies, JS renderingDevs needing backend crawl infraAPI integrationFree: ~5,000 API calls for 7 days, then 1,000/monthScraperAPI (Cloud/API)Proxy rotation, JS rendering, async crawl, prebuilt endpointsDevs, price monitoring, SEO dataMinimal setupFree: 5,000 API calls for 7 days, then 1,000/monthDiffbot Crawlbot (Cloud)AI crawl + extraction, knowledge graph, JS renderingStructured data at scale, AI/MLAPI integrationFree: 10,000 credits/month (about 10k pages)Screaming Frog (Desktop)SEO audit, link/meta analysis, sitemap, custom extractionSEO audits, site managersDesktop app, GUIFree: 500 URLs per crawl, core features onlySiteOne Crawler (Desktop)SEO, performance, accessibility, security, offline export, MarkdownDevs, QA, migration, documentationDesktop/CLI, GUIFree & open-source, 1,000 URLs in GUI report (configurable)Crawljax (Java, OpenSrc)Event-driven crawl for JS-heavy sites, static exportDevs, QA for dynamic web appsJava, CLI/configFree & open-source, no limitsApache Nutch (Java, OpenSrc)Distributed, plugin-based, Hadoop integration, custom searchCustom search engines, large-scale crawlJava, command-lineFree & open-source, infra cost onlyYaCy (Java, OpenSrc)Peer-to-peer crawl & search, privacy, web/intranet indexingPrivate search, decentralizationJava, browser UIFree & open-source, no limitsPowerMapper (Desktop/SaaS)Visual sitemaps, accessibility, QA, browser compatibilityAgencies, QA, visual mappingGUI, easyFree trial: 30 days, 100 pages (desktop) or 10 pages (online) per scan, SEO Tool, NinjaSEO by 500apps, lets you deep crawl websites and find on-page issues. Get access to 50 apps for $14.99/user., Are you looking for best web crawler tool and confused about which one to choose? Well, don’t worry! Check out this blog to get the list of finest web crawler tools out there..