Search Engines for Tor Browser: A List of Active Onion Search Tools

Tor Browser comes with DuckDuckGo as the default search engine, but DuckDuckGo indexes the regular web, not onion sites. To search for .onion addresses and Tor-specific content, you need search engines designed for the Tor network. These engines crawl onion sites and return results that are only accessible through Tor. The most widely used onion search engines include Ahmia, Not Evil, and Torch. Each has a different approach to indexing and a different onion address, so bookmarking the correct one matters. Search engines on Tor also vary in how they handle privacy: some log minimal data, others claim zero logging. The key difference between a Tor search engine and a regular one is that Tor search engines understand onion site structure and can index .onion domains that the regular web cannot reach.

Ahmia is one of the oldest and most respected onion search engines. It crawls onion sites and indexes them in a searchable database. Ahmia also has a clearnet mirror, so you can search onion content even without Tor, though results will be limited. Not Evil is another long-running search engine designed specifically for onion sites. It uses a distributed architecture and does not store user queries. Torch was one of the first Tor search engines and remains active, though its interface is basic. Phobos is a newer search engine that indexes both onion and clearnet content. Each of these engines has its own onion address and its own indexing rules. Some exclude certain categories of content, while others index everything they can crawl. The choice between them often comes down to personal preference and which one has indexed the content you are looking for.

Phishing clones of popular Tor search engines are common. Attackers register similar-looking onion addresses or set up fake mirrors to steal login credentials or inject malware. To verify a search engine address, follow these steps:

1. Check the official Tor Project resources and the Hidden Wiki for verified links.
2. Look for PGP-signed announcements from the search engine operators.
3. Compare the onion address you find with multiple independent sources.
4. Bookmark the correct address in Tor Browser and do not rely on search results to find the search engine itself.
5. Check the SSL certificate and site design for signs of tampering or poor quality.

If a search engine address looks slightly different from what you remember, do not use it. Phishing clones often use addresses that differ by one or two characters. The Tor Project documentation and this site's Useful Resources page list verified onion addresses for major search engines. Always cross-reference before trusting a new address.

Tor Browser does not automatically search onion sites when you type a query into the address bar. If you enter a search term directly, Tor Browser will use your default search engine, which may be DuckDuckGo or another clearnet engine. This means you will not find onion content unless you navigate to an onion search engine first. The Tor browser URL bar also behaves differently when you paste an onion address: it will attempt to connect directly to that address if it is valid. Some users expect Tor Browser to have built-in onion search, but it does not. You must manually visit an onion search engine, enter your query, and then click through to results. This design choice keeps Tor Browser lightweight and does not assume you want to search onion sites. Understanding this distinction prevents confusion and helps you use Tor Browser more effectively.

Onion search engines face technical challenges that clearnet search engines do not. Onion sites can disappear or move without notice, so indexes become stale quickly. Many onion sites block automated crawlers, so search engines may have incomplete coverage. According to Tor Project documentation, the onion network's design prioritizes anonymity over searchability, which means comprehensive indexing is inherently difficult. This matters to you because search results on onion engines are often incomplete and may include dead links or outdated information. Some onion sites deliberately avoid being indexed for security reasons. Search engines also cannot index sites behind authentication or paywalls. If you do not find what you are looking for on one search engine, trying another may yield different results. Expect to spend more time searching on Tor than on the clearnet, and verify information from multiple sources before trusting it.

Search results on onion engines can include malicious sites, phishing pages, and malware distribution points. Attackers use onion search engines to advertise fake marketplaces and scam sites. Before clicking any result, check the URL carefully and look for signs of legitimacy. Legitimate onion sites often have PGP keys, verified addresses on multiple platforms, and consistent branding. If a site asks for login credentials or payment information, verify the address matches what you expect. Use Tor Browser's security settings at the highest level to reduce the risk of script-based attacks. Do not download files from unknown sources, and scan any downloads with antivirus software before opening them. Many onion sites are honeypots or law-enforcement operations designed to identify users. Assume that any site offering illegal goods or services could be monitored. The safest approach is to use onion search engines only to find information, not to conduct transactions.

You can change your default search engine in Tor Browser to use an onion search engine, though this is not recommended for most users. To change the default search engine, open Tor Browser preferences and navigate to the search settings. You can add a custom search engine by entering its onion address and search query format. However, using an onion search engine as your default means every search you perform will go through that engine, which may reduce your anonymity if the engine logs queries. Most security researchers recommend keeping DuckDuckGo or another privacy-focused clearnet engine as your default and manually visiting onion search engines when you need them. This approach gives you more control over when and how your searches are routed. If you do set an onion search engine as default, use one with a strong no-logging policy and verify its address regularly to avoid phishing clones. Document the correct address somewhere secure so you can verify it later.

Start by visiting the Useful Resources page on this site to find verified onion addresses for major search engines. Bookmark the correct addresses in Tor Browser and do not rely on search results to find search engines themselves. When you search, review results carefully and check URLs before clicking. If you are looking for specific information, try multiple search engines and cross-reference results. Remember that onion search engines index incomplete and changing content, so patience and verification are essential. Use Tor Browser's highest security settings and keep your browser updated. Do not assume that finding something on an onion search engine means it is safe or legal to access. The most important step is to verify addresses independently before trusting them, and to treat onion search results with the same skepticism you would apply to any unfamiliar website.