Three private search engines compared, Brave Search, Kagi, and DuckDuckGo

The privacy-respecting search alternative to Google has matured to a point where three serious options exist for individuals. Brave Search (free, ad-supported), Kagi (paid, ad-free), DuckDuckGo (free, ad-supported). Each takes a different approach to the trade-off between cost, privacy, and result quality.

This is the comparison from someone who has used all three as primary search for extended periods.

Brief verdict

For users wanting paid, ad-free, highest-quality results: Kagi at $5-25/month depending on usage tier.

For users wanting free results with privacy: Brave Search or DuckDuckGo, with Brave Search slightly favored on result quality.

For users in the broader Brave ecosystem (browser, news reader): Brave Search has advantages.

What each one is

Brave Search is operated by Brave Software (the company behind the Brave browser). Free to use, ad-supported. Launched 2021. Uses an independent index built from scratch by Brave. As of 2026, queries are roughly 95% served by Brave’s own index, with a small percentage falling back to other sources.

Kagi is operated by Kagi LLC, a US-based company founded in 2022. Paid only, no ads, no tracking. Pricing tiers from $5/month (300 queries) to $25/month (unlimited). Uses a combination of own index, third-party indexes, and various AI-enhanced features.

DuckDuckGo is operated by DuckDuckGo Inc, a US-based company founded in 2008. Free, ad-supported, privacy-focused. Uses primarily Bing’s index for results, with some own-source improvements. Long-established privacy reputation.

Result quality, briefly

For typical web searches (looking up a fact, finding a website, basic queries):

Kagi is best by a meaningful margin. The combination of multiple sources and curated ranking produces results that often surface what you actually want faster than Google or any other competitor.

Brave Search is competitive with Bing/DuckDuckGo. The independent index has improved substantially over the past few years. Some technical/specialized queries return results inferior to Google; common queries return results comparable to Bing.

DuckDuckGo (powered primarily by Bing) returns Bing-quality results, which means competitive with Google for typical queries but sometimes weaker for technical, recent, or specialized queries.

For long-tail or unusual queries, Google’s depth still often wins. None of the three are absolutely better than Google for everything; they are better for the trade-off you are choosing (privacy, ads, cost).

Privacy posture

Service Tracks queries Ads Personalization Account required
Brave Search No Yes (privacy-respecting) Optional No
Kagi No No Yes (per-account) Yes
DuckDuckGo No Yes (contextual, no tracking) No No

All three claim no tracking of individual user queries. Kagi is the most committed because the business model does not depend on advertising. Brave Search and DuckDuckGo’s ad models claim to be non-tracking, but the structural pressure to track is higher when ads are the revenue source.

Kagi’s account-based model is a real trade-off. You sign up with email, you have an account, your account is associated with your search history (which you can disable retention of). Brave Search and DuckDuckGo are anonymous; you just visit and search.

What each does specifically well

Brave Search:

  • Free to use
  • Independent index reduces dependence on Google or Microsoft
  • Goggles feature lets you create custom result rankings
  • Integration with the Brave browser ecosystem

Kagi:

  • Highest result quality
  • No ads
  • Lenses (similar to Brave’s Goggles) for custom result filtering
  • Universal Summarizer that extracts key info from any URL or text
  • AI-assisted features (FastGPT, Quick Answer) integrated with search
  • The “block this domain” feature that affects your future searches

DuckDuckGo:

  • Long-established brand
  • Bang shortcuts (!w for Wikipedia, !so for Stack Overflow, etc.) are genuinely useful
  • Browser apps for iOS and Android with privacy features built in
  • Free email aliasing service via DuckDuckGo Email Protection

What each does less well

Brave Search:

  • Some technical and recent queries return results inferior to Google
  • The ad model creates structural pressure on long-term privacy commitment
  • Brand association with Brave’s broader product direction (crypto, etc.) puts off some users

Kagi:

  • The cost. $5-25/month is more than free.
  • Account-based model loses the anonymous-search aspect of free alternatives.
  • Some users uncomfortable with paying when free options exist.

DuckDuckGo:

  • Result quality is Bing-derived, which means weaker for some technical queries
  • The brand has been criticized for various decisions (their MS contract on tracking, their handling of certain content)
  • Less differentiation versus the other free option (Brave Search) in 2026

Cost reality

Brave Search: free. No subscription. Ads are present.

Kagi:

  • Trial: 100 free searches
  • Starter: $5/month for 300 searches
  • Professional: $10/month for unlimited
  • Ultimate: $25/month for unlimited + advanced AI features

DuckDuckGo: free. Ads are present.

For someone who searches more than 300 times per month (most active web users), Kagi Professional at $10/month is the right tier.

A specific recommendation

For users willing to pay $10/month for noticeably better results: Kagi Professional.

For users wanting free with privacy who use the Brave browser: Brave Search.

For users wanting free with privacy who use other browsers: DuckDuckGo (the bang shortcuts are valuable) or Brave Search (slightly better result quality).

For users who want maximum AI-assisted search features: Kagi Ultimate at $25/month.

For users who do not care about privacy: Google. The acknowledged trade-off is real and not always wrong.

For most readers of this site, the right move is to try Kagi Trial (100 free searches), then make the call based on whether the result quality justifies the price for your usage.

Kagi | Brave Search | DuckDuckGo

Related: I recommended Brave for years, I’m not anymore, Mullvad Browser long-term review