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KnockKnock

brew install --cask knockknock v4.0.3

Displays all persistent software, startup items, and kernel extensions installed on your Mac.

Why you might care

KnockKnock reveals hidden or suspicious software that auto-starts with your system—useful for security audits or malware detection. It's free and from Objective-See, a trusted macOS security researcher, giving you clear visibility into what's running before you run it.

Categories

Alternatives

Activity Monitor Autoruns Little Snitch
546
30-day installs · #446
1.6k
90-day · #459
4.9k
365-day · #493

Links

Blurb generated by claude-haiku-4-5 on today.

Raw metadata
{
  "alternatives": [
    "Activity Monitor",
    "Autoruns",
    "Little Snitch"
  ],
  "artifacts": [
    {
      "app": [
        "KnockKnock.app"
      ],
      "target": "/Applications/KnockKnock.app"
    },
    {
      "zap": [
        {
          "trash": [
            "~/Library/Caches/com.objective-see.KnockKnock",
            "~/Library/Preferences/com.objective-see.KnockKnock.plist",
            "~/Library/Saved Application State/com.objective-see.KnockKnock.savedState"
          ]
        }
      ]
    }
  ],
  "auto_updates": null,
  "categories": [
    "security",
    "system-utility",
    "monitoring"
  ],
  "deprecated": 0,
  "deprecation_reason": null,
  "desc": "Tool to show what is persistently installed on the computer",
  "disable_reason": null,
  "disabled": 0,
  "display_name": "KnockKnock",
  "enrichment_fetched_at": "2026-06-20T22:45:37+00:00",
  "first_seen": "2026-06-20T00:47:34+00:00",
  "full_token": "knockknock",
  "github_default_branch": null,
  "github_last_commit_at": null,
  "github_readme_excerpt": null,
  "github_repo": null,
  "github_stars": null,
  "github_topics": [],
  "homepage": "https://objective-see.org/products/knockknock.html",
  "homepage_og_description": null,
  "homepage_og_image": "https://objective-see.com/images/KK/kk.png",
  "homepage_title": "Objective-See: KnockKnock",
  "installs_30d": 546,
  "installs_365d": 4910,
  "installs_90d": 1595,
  "last_seen": "2026-06-20T00:47:34+00:00",
  "llm_generated_at": "2026-06-20T23:04:15+00:00",
  "llm_model": "claude-haiku-4-5",
  "names": [
    "KnockKnock"
  ],
  "one_liner": "Displays all persistent software, startup items, and kernel extensions installed on your Mac.",
  "rank_30d": 446,
  "rank_365d": 493,
  "rank_90d": 459,
  "raw_hash": "259bdd864b2bd8b0",
  "ruby_source_path": "Casks/k/knockknock.rb",
  "tap": "homebrew/cask",
  "token": "knockknock",
  "version": "4.0.3",
  "why_use_this": "KnockKnock reveals hidden or suspicious software that auto-starts with your system\u2014useful for security audits or malware detection. It\u0027s free and from Objective-See, a trusted macOS security researcher, giving you clear visibility into what\u0027s running before you run it."
}