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AI content filters

Extensions and tools that hide AI-generated posts, images, and videos from feeds and search.

17 projects94% active71% build on a shared standardMapped 2026-10-26

What they agree on

What they argue about

How is the main thing licensed?

proprietary or closed source8
permissive open source (MIT/Apache/BSD)5
copyleft or source-available with restrictions3
open parts around a closed core1

How is it mainly sustained?

individual side project, no revenue9
company with a paid product, tier, or ads4
individual with revenue (paid app, tier, ads, or donations)2
community, foundation, or research1
company or startup with a free product (no revenue yet)1

Can it run entirely on your own device or infrastructure, without the maker's servers?

yes8
no, it needs the maker's servers6
partly (some features need the maker's servers)2
not applicable1

Do you need an account to use it?

no account9
account required6
optional account2

Who is it for?

both8
non-developers7
developers2

Which shared standard or format does it mainly build on?

none of these (its own format or interface)5
TypeSafe Jev4
Pangram's AI-text detector3
uBlock Origin / uBlacklist filter lists2
a general-purpose LLM API (OpenAI and compatible)2
C2PA or IPTC provenance metadata1

What does it try to remove?

content written or generated by AI10
content about AI (the topic)3
low-quality or time-wasting content, however it was made3
both AI-written content and AI as a topic1

How does it mainly decide what to flag?

an AI model or classifier9
curated or crowdsourced lists and reports4
a mix of several of these3
keyword or domain rules1

In the default setup, where is each item judged?

on the maker's server8
on your device3
by a third-party AI service, using your own API key3
inside the search engine or platform itself3

What happens to flagged content by default?

removed or hidden8
labeled or scored, left visible3
ranked lower3
collapsed or blurred, one click to show2
you choose: hide or label1

Which place does it mainly cover?

Hacker News7
social feeds (X, LinkedIn, Reddit, YouTube)4
search results3
any web page2
its own platform1

What form does it take?

a browser extension or userscript7
an alternative website or reader app6
a setting inside an existing search engine or platform3
a blocklist used by another tool1

Can you correct a wrong verdict?

no6
yes, and corrections feed a shared list or model5
yes, for yourself only (show anyway, threshold, allowlist)5

In the default setup, how do users mainly pay for it?

free, no paid option10
you pay an AI provider through your own API key3
free, with a paid upgrade or tips2
paid subscription required2

Projects

ProjectStatusWhat it is
DuckDuckGo (Hide AI-Generated Images) ActiveA DuckDuckGo search setting, on by default at noai.duckduckgo.com, that hides AI-generated images using open-source blocklists.
HACK for Hacker News ActiveA long-running iOS, Mac and Android Hacker News client that added an opt-in setting to block AI-related posts by title.
Hacker News AI Detector (Salah Adawi) ActiveA beta site that scores every story in the Hacker News top 30 for AI-written content with Pangram and ranks domains and authors.
hcker.news (AI filter) ActiveA Hacker News reader whose one-click AI filter removes AI-related stories and GitHub repos with signs of AI authorship.
HNFiltered ActiveA Hacker News front page minus stories whose discussion suggests the link is low-quality slop or a wasted click, judged by an LLM.
hnslop ActiveA cached API, userscript and Firefox extension that hides Hacker News stories whose linked article scores as AI-written on Pangram.
Kagi SlopStop ActiveKagi Search's community reporting system that flags AI-slop sites, images and videos and ranks them lower after human review.
Pangram AI Detection (extension) ActivePangram Labs' Chrome extension that labels posts on X, LinkedIn, Reddit, Substack and Medium as Human, AI-Assisted or AI using its detector.
Pinterest Gen AI labels and controls ActivePinterest's built-in labels for AI-generated or modified Pins, plus settings to see fewer AI Pins by category.
Rot Guard ActiveA Chrome extension that asks TypeSafe Jev whether each video, post or page serves your goals and blocks or blurs what doesn't.
Slop Filter ActiveA Chrome and Firefox extension that collapses AI-written posts and comments on X, LinkedIn, Reddit and YouTube, scored by TypeSafe Jev.
Slop Mop ActiveA Chrome extension that scores LinkedIn posts with TypeSafe Jev and folds away bad writing, whether a person or an AI wrote it.
SniffSlop ActiveA browser extension that colors any paragraph you hover by how likely Jev thinks it is AI-written, or by your own questions.
Sprinklz (HN with less AI) ActiveA customizable feed builder whose public Hacker News feed ranks AI-driven stories lower using text matching and embeddings.
uBlockOrigin & uBlacklist Huge AI Blocklist QuietA hand-curated list of 1000+ sites with AI-generated images, for removing them from Google, DuckDuckGo and Bing image search via uBlock Ori…
unslop.news ActiveA Hacker News front page with stories primarily about AI removed by an LLM that reads each title and article.
YouTube DeSlop ActiveA userscript and Firefox add-on that removes videos and channels on a community GitHub blocklist of AI-slop YouTube channels.

Where they meet

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The poll

Every project above was answered against these questions. Core questions are shared by all communities; the rest are this community's own.

  1. Is it actively maintained? core
    active · active, but changed direction (pivot, fork, or rename) · maintenance or slowing · dormant, sunsetting, or archived
  2. How is the main thing licensed? core
    permissive open source (MIT/Apache/BSD) · copyleft or source-available with restrictions · open parts around a closed core · proprietary or closed source
  3. How is it mainly sustained? core
    individual side project, no revenue · individual with revenue (paid app, tier, ads, or donations) · community, foundation, or research · company with a paid product, tier, or ads · company or startup with a free product (no revenue yet) · big company side project
  4. Can it run entirely on your own device or infrastructure, without the maker's servers? core
    yes · yes, but it calls a third-party service you choose (your own API key or account) · partly (some features need the maker's servers) · no, it needs the maker's servers · not applicable
  5. Do you need an account to use it? core
    no account · optional account · account required
  6. Who is it for? core
    developers · non-developers · both
  7. Is there public evidence it's built with AI coding agents? core
    yes, the repo shows it (agent instruction files or agent co-authored commits) · yes, the maker says so · no public evidence
  8. Which shared standard or format does it mainly build on? core
    uBlock Origin / uBlacklist filter lists · Pangram's AI-text detector · TypeSafe Jev · a general-purpose LLM API (OpenAI and compatible) · C2PA or IPTC provenance metadata · none of these (its own format or interface) · not applicable
  9. What does it try to remove? value
    content written or generated by AI · content about AI (the topic) · both AI-written content and AI as a topic · low-quality or time-wasting content, however it was made
  10. How does it mainly decide what to flag? approach
    keyword or domain rules · curated or crowdsourced lists and reports · an AI model or classifier · labels or metadata (C2PA, IPTC, platform labels) · a mix of several of these
  11. In the default setup, where is each item judged? approach
    on your device · on the maker's server · by a third-party AI service, using your own API key · inside the search engine or platform itself
  12. What happens to flagged content by default? approach
    removed or hidden · collapsed or blurred, one click to show · labeled or scored, left visible · ranked lower · you choose: hide or label
  13. Which place does it mainly cover? approach
    Hacker News · social feeds (X, LinkedIn, Reddit, YouTube) · search results · any web page · its own platform
  14. What form does it take? approach
    an alternative website or reader app · a browser extension or userscript · a setting inside an existing search engine or platform · a blocklist used by another tool
  15. Once you start using it, is filtering or labeling on by default? value
    yes, on by default · no, you switch it on
  16. Can you correct a wrong verdict? value
    yes, and corrections feed a shared list or model · yes, for yourself only (show anyway, threshold, allowlist) · no
  17. In the default setup, how do users mainly pay for it? value
    free, no paid option · free, with a paid upgrade or tips · you pay an AI provider through your own API key · paid subscription required
  18. Does it publish its verdicts for others to reuse (a list, dataset, feed, or API)? approach
    yes · no

Sources

Show HN posts 2026-07-27 to 2026-10-25 in this kind, plus well-known reference projects.

38 sources across 17 projects, read on 2026-10-26. Each project page lists its own. Poll version: core-v4.