Search and knowledge resources
Third-party entry points and in-site tools for web search, knowledge discovery, and course and learning material lookup.
All 33 resources hub
SEARCHSearch and knowledge resources
33 resource portals
BaiduBaidu (kaifa.baidu.com) is used to search technical materials and public web pages through Baidu’s developer search entry; after redirecting, the service’s rules and privacy policy apply.360360 (so.com) is used to search and retrieve public web content using 360; after redirection, the rules and privacy policy of that service apply.BingBing (cn.bing.com) is used to search public content such as web pages, images, and news with Bing; after redirecting, the service’s rules and privacy policy apply.GithubGithub (github.com) is used to search repositories, code, issues, and users on GitHub; once you leave, the service’s rules and privacy policy apply.GoogleGoogle (google.com) is used to search public web pages and aggregated information with Google; after redirect, the service’s rules and privacy policy apply.RunoobRunoob (runoob.com) is used to search programming tutorials, API, and examples on Rookie Tutorial; after redirecting, the service’s rules and privacy policy apply.Stack OverflowStack Overflow (stackoverflow.com) is used to search for programming questions and technical answers on Stack Overflow; after redirect, the service’s rules and privacy policy apply.SogouSogou (sogou.com) is used to search and retrieve public web content using Sogou Search; after redirection, the rules and privacy policy of that service apply.Baidu ScholarBaidu Scholar (xueshu.baidu.com) is used to search Chinese academic papers, journals, and citation leads; after redirect, the service’s rules and privacy policy apply.Programming QuizThis site’s “Programming Quiz” lets you answer programming knowledge questions in the browser and view the results; the scope of data processing follows the tool page description.Programming Learning ChecklistThis site’s “Programming Study List” is used to view programming booklists organized by technical direction; the scope of data processing is subject to the tool page instructions.Google ScholarGoogle Scholar (scholar.google.com) is used to search academic papers, authors, journals, and citation relationships; after redirecting, the service’s rules and privacy policy apply.Technical Learning RoadmapThe technical learning roadmap (roadmap.sh) is used to view learning paths organized by role and tech stack; after navigating, the service’s rules and privacy policy apply.LeetCodeLeetCode (leetcode.cn) is used to practice algorithms, join contests, and view solutions; after redirecting, the service’s rules and privacy policy apply.Free Programming BooksFree Programming Books (github.com) for finding lists of free programming books and courses by language; after opening, the service’s rules and privacy policy apply.Frontend DevelopmentThis site’s “Frontend Development” section is used to view frontend development learning topics and resource lists; the scope of data processing follows the tool page instructions.CNKICNKI (cnki.net) is used to search Chinese journals, theses, conference papers, and newspaper literature; after redirecting, the service’s rules and privacy policy apply.China University MOOCChina University MOOC（icourse163.org）is used to find and learn online courses published by universities; after redirect, the service’s rules and privacy policy apply.AlgorithmsAlgorithms (the-algorithms.com) is used to view open-source algorithm examples implemented in multiple programming languages; after navigating, the service’s rules and privacy policy apply.BASEBASE (base-search.net) is used to search papers and open-access literature from academic repositories; after redirecting, the service’s rules and privacy policy apply.Brave SearchBrave Search（search.brave.com）is used to search public web pages and news content with Brave Search; after redirect, the service’s rules and privacy policy apply.Crossref Metadata SearchCrossref Metadata Search (search.crossref.org) is used to retrieve metadata for academic publications by title, author, or DOI; after redirecting, the service’s rules and privacy policy apply.DevDocsDevDocs（devdocs.io）is used to search multiple programming language and Web API documents in a unified interface; after redirect, the service’s rules and privacy policy apply.DOAJDOAJ (doaj.org) is used to search reviewed open-access journals and papers; after redirect, the service’s rules and privacy policy apply.DuckDuckGoDuckDuckGo (duckduckgo.com) is used to search public web pages with DuckDuckGo; after redirect, the service’s rules and privacy policy apply.Hello AlgorithmsHello Algo (hello-algo.com) is used to read illustrated algorithm tutorials and view multilingual sample code; after you leave, the service’s rules and privacy policy apply.OpenverseOpenverse (openverse.org) is used to search for openly licensed image and audio assets; after you leave, the service’s rules and privacy policy apply.PubMedPubMed (pubmed.ncbi.nlm.nih.gov) is used to search abstracts of biomedical and life science literature; the service’s rules and privacy policy apply after redirect.PubMed CentralPubMed Central (ncbi.nlm.nih.gov) is used to read free biomedical full text included in PubMed Central; after redirecting, the service’s rules and privacy policy apply.Semantic ScholarSemantic Scholar (semanticscholar.org) for searching academic papers and viewing citations, authors, and related research; the service’s rules and privacy policy apply after leaving this site.SimilarsitesearchSimilarsitesearch (similarsitesearch.com) is used to find websites with similar functions or topics based on a known site; after redirect, the service’s rules and privacy policy apply.TinEyeTinEye (tineye.com) is used to upload an image or provide an image URL for reverse image search; the service’s rules and privacy policy apply after you are redirected.W3SchoolW3School (w3school.com.cn) is used to consult HTML, CSS, JavaScript, and other web development tutorials and examples; after redirecting, the service’s rules and privacy policy apply.