Best tools to filter AI-generated content from search (2026)
Some tools remove the engine's AI answers, some push down flagged pages, some cut off by date, and one detects AI-built sites. Each entry says what it is best for and where it falls short.
To filter AI-generated content from search, first decide which AI content you mean. There are three kinds, and the tools below split along those lines: AI answers that the search engine writes itself, AI-generated pages that rank like any other result, and AI-generated images. No single tool covers all three, and several cover only one engine.
This roundup lists eight options, ordered by approach and not by quality. We make Kitsuvo, which is the last entry, so weigh our view with that in mind. Each entry says where its tool is the wrong choice, ours included. Facts about the other tools come from their own pages as read on October 10, 2026; the sources are listed at the end.
At a glance
| Tool | What it does | Platforms | Price | Open source? | Limits |
|---|---|---|---|---|---|
| Google Web filter | Shows text-based links only, so Google's extra result types are left out | Google Search, in any browser | Free | Not applicable, it is a Google feature | Does not change which sites rank, so AI-made pages still appear |
| DuckDuckGo no-AI search | Turns off Search Assist and Duck.ai; filters AI-generated images by default | Any browser; Chrome and Firefox extensions set it as the default | Free | Hosted service | Its help page does not say AI-generated websites are filtered |
| Kagi SlopStop | Flags and downranks pages and domains judged to be AI slop, from user reports; has AI image and video filters | Kagi Search, in any browser | Plans from $5 a month; free trial of 100 searches | Hosted service | Downranks web results rather than hiding them; works only inside Kagi |
| Slop Evader | Limits results to pages dated before November 30, 2022 | Chrome and Firefox, including Firefox for Android | Free | Source on GitHub; its Firefox listing names the Anti-Capitalist Software License | Drops everything recent, and relies on Google's date filter |
| De-AI Search | Switches off each engine's AI features through its settings; adds -ai only on Bing and Yahoo | Chrome | Free | Yes, MIT | Turns off engine AI features; does not identify AI-made pages |
| HUGE AI Blocklist | Hides 1000+ curated sites that host AI-generated images | uBlock Origin or uBlacklist; hosts-format list for Pi-hole and AdGuard | Free | Yes, CC0 | Aimed at image results; knows only the sites on the list |
| OnlyHuman | Hides AI content farms and SEO spam on Google, Bing, DuckDuckGo and Yandex | Browsers running uBlock Origin | Free | Public list on GitHub; no license stated in its README | Its README says it will not catch everything and may block legitimate sites |
| Kitsuvo | Detects likely AI-built sites by builder fingerprints and hides matching results on Google, Bing and DuckDuckGo | Desktop browser for Mac and Windows; developer-preview extension for Chrome and Firefox | Free; optional Plus at $6 a month | No, the browser is not open source | Needs a different browser, and misses sites with no recognizable traces |
The tools
Google Web filter
Best for: getting plain links on Google without installing anything.
Google announced the Web filter on May 14, 2024, and press coverage describes it as showing text-based links only. It sits next to Images and News, or under More. Because it is the standard workaround for AI Overviews, our guide shows how to make it your default with a udm=14 search address.
Not for: removing AI-made websites. It changes the shape of the results page, not which sites appear in the list.
DuckDuckGo no-AI search
Best for: a results page without AI answers, and fewer AI images, in any browser.
At noai.duckduckgo.com, DuckDuckGo says Search Assist and Duck.ai are off and AI-generated images are filtered out by default, "as best we can". Its No-AI Search extensions for Chrome and Firefox make that your default search. The steps for the settings route are in how to turn off AI answers in search engines.
Not for: hiding AI-built websites. The help page lists AI features and AI images, and does not say that AI-generated websites are filtered from web results.
Kagi SlopStop
Best for: people who already pay for Kagi and want reported slop pushed down.
Any Kagi user can report a web page, image or video. Kagi reviews each report, typically within a week. A page on a mixed domain is flagged but not downranked; a domain that is mostly AI-generated, typically above 80% of its pages, is flagged and downranked. There are dropdown filters for AI images and AI videos, and a setting to hide them completely.
Not for: hiding web results outright, or for use outside Kagi. Its help page does not describe a way to hide flagged web results entirely, and Kagi is a paid search engine with a 100-search free trial.
Slop Evader
Best for: searches where age is a feature, such as repairs, recipes and old forum threads.
Slop Evader, by the artist and researcher Tega Brain, limits Google and DuckDuckGo results to pages dated before ChatGPT's public release on November 30, 2022. For YouTube, Reddit, Quora, Stack Exchange, Mumsnet and Pinterest it routes the query through Google's date-filtered search. Its README says it does not use its own index and that the same searches can be done without the extension.
Not for: anything recent: news, new software documentation, current research. It also depends on Google's date metadata, and AI-generated spam existed before 2022. Our Slop Evader alternatives guide goes further.
De-AI Search
Best for: trying a one-toggle, open-source extension that turns off AI results across several engines.
De-AI Search is a Chrome extension under the MIT license. Its README says it automatically adjusts search engine settings to filter out AI-generated content on Google, Bing, DuckDuckGo, Brave Search, Yahoo and Ecosia, and its Chrome Web Store listing (version 1.1.0, June 19, 2026) says the same. The developer's commit notes of June 18, 2026 say Google gets the web-only udm=14 parameter, Brave, DuckDuckGo and Ecosia get their own AI-off settings, and only Bing and Yahoo keep the -ai query operator. The store listing says it works offline and collects no data.
Not for: finding AI-made pages. It switches off an engine's own AI features and, on Bing and Yahoo, adds a -ai term that asks the engine to leave out pages containing that word. That removes pages about AI, including useful ones. None of it tells you whether a page was made with AI. That reading is ours, not the developer's.
HUGE AI Blocklist
Best for: cleaning up image search for free.
The HUGE AI Blocklist is a community-curated list of more than a thousand sites that host AI-generated images, released under CC0. It works with uBlock Origin and uBlacklist (including Safari on iOS and iPadOS through uBlacklist), has a hosts-format version for Pi-hole and AdGuard, and is written for Google, DuckDuckGo and Bing. An optional stricter list also hides mixed sites such as art and stock-photo platforms.
Not for: web results about AI-written pages, or sites that are not listed yet. Its README lists unfinished support for some engines (Startpage, Ecosia and Brave for uBlock Origin), and its one-click uBlacklist import works only in Chrome.
OnlyHuman
Best for: a free, inspectable baseline against AI content farms and SEO spam in web results.
OnlyHuman is a uBlock Origin filter list. Its README says it targets low-effort AI content farms, thin SEO pages and spun articles on Google, Bing, DuckDuckGo and Yandex, and that it leaves legitimate AI tools and sites that use AI as part of a broader offering alone. You import one list URL into uBlock Origin.
Not for: new sites or complete coverage. The README says it "won't catch everything" and may occasionally block legitimate sites. We could not find a license named in it.
Kitsuvo
Best for: keeping vibe-coded sites out of Google, Bing and DuckDuckGo results, with the evidence behind each call.
Kitsuvo is our desktop browser for Mac and Windows. It scores pages from the traces AI app builders leave, such as hosting domains, runtime scripts, tags and headers, and folds matching search results into one "Hidden by Kitsuvo" line with a way to show them. A setting also hides AI answer panels it recognizes on those three engines. The browser extension is a developer preview installed from a ZIP, with an optional search filter based on known builder hosting.
Not for: anyone who will not switch browsers, anyone on Linux, iPhone or Android, or a problem that is AI-written text on a site that left no builder traces (a separate local copy check flags only some signs of that). From a results list it can judge only the address until you open a page, it needs a local model you install yourself to check images, and it does not stop an engine from generating its AI answers.
Which should you use?
- You want the engine's own AI gone: Google's Web filter, or DuckDuckGo no-AI search.
- You search old topics: Slop Evader.
- You want a free baseline in the browser you already use: uBlock Origin with OnlyHuman for web results and the HUGE AI Blocklist for images.
- You already pay for a search engine: Kagi, including its SlopStop reports.
- New vibe-coded sites are the problem: a detector such as Kitsuvo, which can flag a site that is on no list yet.
They stack, because they work at different layers. The wider set of methods, including search operators, is in how to hide AI-generated sites from search results, and the two-engine comparison is no-AI search compared.
Two neighbouring roundups cover the other halves of the problem: best browsers and extensions to avoid AI answers for the summaries an engine writes, and best AI-generated website detectors for checking one site you were sent.
What we left out
Other tools exist. Pre-AI Search is a Chrome extension that applies Google's date filter to show pre-2023 results and removes AI Overviews; its free version has limited functionality, and its listing says it cannot guarantee complete removal. It is a date filter like Slop Evader, so we did not list it separately. Social-feed filters were also left out, because this roundup is about search results.
Sources
All read on October 10, 2026. Prices and settings change, so check the tool's own page before relying on a figure.
- Google Web filter: Search Engine Journal, May 14, 2024, and our guide.
- DuckDuckGo: About noai.duckduckgo.com.
- Kagi: SlopStop help page and pricing.
- Slop Evader: Firefox add-on page and README.
- De-AI Search: Chrome Web Store listing and README, plus the repository's commit history.
- HUGE AI Blocklist and OnlyHuman: the GitHub READMEs linked above.
- Kitsuvo: this site's extension and pricing pages and our privacy policy.
Questions people ask
Can you filter AI-generated websites out of Google search?
Google has no setting for it. You can approximate it with a date cutoff such as Slop Evader, a domain list such as OnlyHuman, or a detector that recognizes AI builders such as Kitsuvo. Each one misses sites it does not know about.
Which tool removes AI Overviews?
Google's Web filter shows plain links, and DuckDuckGo's no-AI search turns off its own AI answers. A browser-side filter such as Kitsuvo hides answer panels it recognizes, but only after the engine has generated them.
Is there a free way to filter AI images from search?
DuckDuckGo filters AI-generated images by default on its no-AI search, and the HUGE AI Blocklist covers Google, DuckDuckGo and Bing image results through uBlock Origin or uBlacklist. Kagi has an AI Images filter, but Kagi is a paid engine.
Do any of these tools catch all AI-generated content?
No. Each depends on a date, a list, a user report or a fingerprint, so each misses something. Combining one engine-level setting with one list or detector gives the widest coverage.