Search Engines & Knowledge Platforms in China
Chinese search splits between finding a page and finding an answer. Baidu, Sogou and 360 Search are the engines: Baidu holds the largest share and indexes mostly Chinese-language pages, Sogou reaches WeChat public-account articles the others cannot, and 360 sits behind both on roughly 5-10% of the market. The other five entries are where answers live — Zhihu for long-form Q&A, Baidu Baike for encyclopedia entries, Baidu Wenku for uploaded documents, CNKI for academic papers, and Jianshu for essays. Reading any of them needs Chinese, so the useful question for a visitor outside China is what loads, and what you can do once it does.
Search engines and knowledge platforms in China compared
| Platform | What it is | Operator & launch year | Outside-China access | English UI | Fee |
|---|---|---|---|---|---|
| Baidu / 百度 | Web search with Maps, Baike, Zhidao and an AI assistant | Baidu, founded 2000 by Robin Li | Loads worldwide; results are Chinese-language only | No full English interface | Free |
| Sogou / 搜狗 | Web search that also indexes WeChat public-account articles | Sohu, 2004; Tencent-owned since 2021 | — | No, Chinese only | Free |
| 360 Search / 360搜索 | General search with news, video, images, maps and medical results | Qihoo 360, August 2012 | Browseable from abroad; mostly Chinese results | No | Free |
| Zhihu / 知乎 | Q&A site with upvoted long-form answers | Launched 2011 | Loads overseas; content in Chinese | No English edition | Free; paid columns and courses |
| Baidu Baike / 百度百科 | User-written encyclopedia, 20 million+ entries | Baidu | Yes, from the US without a VPN and without an account | No, Chinese only | Free |
| Baidu Wenku / 百度文库 | Document library: papers, templates, presentations, contracts | Baidu, November 2009 | Yes, from the US without a VPN | No, Chinese-only interface | Freemium; downloads cost points or membership |
| CNKI / 中国知网 | Academic database of journals, theses and dissertations | Tsinghua Tongfang | Yes, but most full text is behind a paywall | English abstracts often available | Subscription |
| Jianshu / 简书 | Long-form writing community with Markdown editor and topic collections | Launched in Shanghai, 2013 | — | No, Chinese interface | Free; coins for tipping writers |
How this market is structured
Three engines, one of them dominant
Baidu, founded by Robin Li in 2000, is where most people in China look things up: results are ranked for local context, and the same company runs Baike for encyclopedia entries, Zhidao for questions, Maps for directions, the Ernie AI assistant, and the Apollo self-driving program. Sogou began as Sohu's search engine in 2004 and has been wholly owned by Tencent since a 2021 buyout; its edge is indexing WeChat Official-Account articles that Baidu cannot reach, and the brand also ships Sogou Input Method, the pinyin keyboard used on phones and desktops. 360 Search came from Qihoo 360, the security-software maker, in August 2012 and shipped as the default engine of its own browser — which is how it reached the top tier despite launching late. It returns news, video, images, maps, encyclopedia and medical results beside standard ranking, with an AI answer mode alongside.
Where the answers come from
Zhihu, launched in 2011, runs on the Quora model: answers are voted up or down, the strongest rise, and readers follow topics and writers to shape their feed. The audience leans toward students, engineers and professionals, and the site has added paid columns, courses and fiction. Baidu Baike carries the encyclopedia role, with more than 20 million entries written by users but reviewed by editors before publication, which is why it reads closer to an official record than to an open wiki. Baidu Wenku, from November 2009, hosts uploaded Word, PDF and PowerPoint files — papers, resumes, business templates, exam material — free to preview, often points-gated or paid to download. CNKI, run by Tsinghua Tongfang, is the academic layer: 80 million-plus articles, theses, dissertations, conference papers and yearbooks, with Wanfang Data and Chongqing VIP as the two alternatives. Jianshu, launched in Shanghai in 2013, is the writing end, closest to Medium in shape, where authors publish in a Markdown editor and readers reward posts with coins.
Search that never reaches a search engine
Chinese users increasingly search inside apps rather than at an engine: products on Taobao, lifestyle clips on Douyin, reviews on RedNote, questions on Zhihu. That is why a directory of platforms matters more here than a list of engines — knowing where a question gets answered is part of the answer. On the AI side, Chinese users mostly meet conversational search inside mobile apps rather than through a browser tab, which keeps the engine's share of a look-up smaller than the headline market share suggests.
Using these platforms from outside mainland China
Baidu, 360 Search, Zhihu, Baidu Baike, Baidu Wenku and CNKI all load from outside China — Baike and Wenku are documented as reachable from the US without a VPN — and what differs is what you can do once there. Baike asks for no account to read and holds over 20 million entries, all in Chinese. Wenku reads the same way, but full features need a Baidu account with phone verification, and many downloads are points-gated or paid. CNKI opens but paywalls: English abstracts are often available, full text mostly is not, and many US university libraries hold an institutional subscription that gets you in. Everything except CNKI's abstracts is Chinese-language, and Baidu, Sogou, 360 Search, Zhihu and Baike have no English edition at all.
Questions about Chinese search engines
Is Baidu the Chinese Google?
Functionally, yes: it is the dominant engine, with roughly 65% of the search market, and it plays the role Google plays in the West. The comparison breaks on two points. Coverage — Baidu indexes far fewer international sites and ranks Chinese-language content first. Behaviour — Chinese users increasingly search inside apps such as Taobao, Douyin and RedNote instead of at an engine.
What does Sogou have that Baidu does not?
WeChat. Sogou indexes WeChat Official-Account articles, mini-programs and Moments content from Tencent's ecosystem, which Baidu and the other engines cannot reach. Tencent has wholly owned Sogou since a 2021 buyout, and that ownership is what makes the access possible.
What is the Chinese Quora?
Zhihu. It launched in 2011 on the same question-and-answer model, with upvoted answers, topic feeds and writers to follow. Answers tend to run longer and to cite sources, the audience skews technical and professional, and the site now sells paid columns and courses on top of free answers.
How does Baidu Baike compare to Wikipedia?
Baike is the dominant Chinese-language encyclopedia, with more than 20 million entries, but it is not open-edit: entries pass editor review and operate under Chinese content rules. Wikipedia in either language is blocked inside China, which is part of why Baike fills that role. Most Western academic institutions do not accept Baike as a citable source, so treat it as a record of the Chinese-language version of a subject rather than a neutral reference.
Can I use these platforms from outside China?
Reading, mostly yes; contributing, rarely. Baidu, 360 Search and Zhihu load abroad, Baike and Wenku are reachable from the US without a VPN, and CNKI opens but paywalls most full text. Reading needs Chinese in every case except CNKI's English abstracts, and full features on Wenku require a Baidu account with phone verification.
