diff --git a/Library/Homebrew/cmd/install.rb b/Library/Homebrew/cmd/install.rb
index 53daf38c9c8ce..24bf1287b4e41 100644
--- a/Library/Homebrew/cmd/install.rb
+++ b/Library/Homebrew/cmd/install.rb
@@ -315,8 +315,8 @@ def install
     ohai "Searching for similarly named #{package_types.join(" and ")}..."
 
     # Don't treat formula/cask name as a regex
-    query = string_or_regex = name
-    all_formulae, all_casks = Search.search_names(query, string_or_regex, args)
+    string_or_regex = name
+    all_formulae, all_casks = Search.search_names(string_or_regex, args)
 
     if all_formulae.any?
       ohai "Formulae", Formatter.columns(all_formulae)
diff --git a/Library/Homebrew/cmd/search.rb b/Library/Homebrew/cmd/search.rb
index c666b7df65b18..064b10911b66e 100644
--- a/Library/Homebrew/cmd/search.rb
+++ b/Library/Homebrew/cmd/search.rb
@@ -33,12 +33,11 @@ def search_args
       description <<~EOS
         Perform a substring search of cask tokens and formula names for <text>. If <text>
         is flanked by slashes, it is interpreted as a regular expression.
-        The search for <text> is extended online to `homebrew/core` and `homebrew/cask`.
       EOS
       switch "--formula", "--formulae",
-             description: "Search online and locally for formulae."
+             description: "Search for formulae."
       switch "--cask", "--casks",
-             description: "Search online and locally for casks."
+             description: "Search for casks."
       switch "--desc",
              description: "Search for formulae with a description matching <text> and casks with " \
                           "a name or description matching <text>."
@@ -84,7 +83,7 @@ def search
     elsif args.pull_request?
       search_pull_requests(query, args)
     else
-      formulae, casks = Search.search_names(query, string_or_regex, args)
+      formulae, casks = Search.search_names(string_or_regex, args)
       print_results(formulae, casks, query)
     end
 
diff --git a/Library/Homebrew/search.rb b/Library/Homebrew/search.rb
index ab535846ef791..94175561a2195 100644
--- a/Library/Homebrew/search.rb
+++ b/Library/Homebrew/search.rb
@@ -42,51 +42,6 @@ def search_descriptions(string_or_regex, args, search_type: :desc)
       end
     end
 
-    def search_taps(query, silent: false)
-      if query.match?(Regexp.union(HOMEBREW_TAP_FORMULA_REGEX, HOMEBREW_TAP_CASK_REGEX))
-        _, _, query = query.split("/", 3)
-      end
-
-      results = { formulae: [], casks: [] }
-
-      return results if Homebrew::EnvConfig.no_github_api?
-
-      unless silent
-        # Use stderr to avoid breaking parsed output
-        $stderr.puts Formatter.headline("Searching taps on GitHub...", color: :blue)
-      end
-
-      matches = begin
-        GitHub.search_code(
-          user:      "Homebrew",
-          path:      ["Formula", "Casks", "."],
-          filename:  query,
-          extension: "rb",
-        )
-      rescue GitHub::API::Error => e
-        opoo "Error searching on GitHub: #{e}\n"
-        nil
-      end
-
-      return results if matches.blank?
-
-      matches.each do |match|
-        name = File.basename(match["path"], ".rb")
-        tap = Tap.fetch(match["repository"]["full_name"])
-        full_name = "#{tap.name}/#{name}"
-
-        next if tap.installed?
-
-        if match["path"].start_with?("Casks/")
-          results[:casks] = [*results[:casks], full_name].sort
-        else
-          results[:formulae] = [*results[:formulae], full_name].sort
-        end
-      end
-
-      results
-    end
-
     def search_formulae(string_or_regex)
       if string_or_regex.is_a?(String) && string_or_regex.match?(HOMEBREW_TAP_FORMULA_REGEX)
         return begin
@@ -129,12 +84,11 @@ def search_casks(string_or_regex)
       end
 
       cask_tokens = Tap.flat_map(&:cask_tokens).map do |c|
-        c.sub(%r{^homebrew/cask.*/}, "")
-      end
+        next if c.start_with?("homebrew/cask/") && !Homebrew::EnvConfig.no_install_from_api?
 
-      if !Tap.fetch("homebrew/cask").installed? && !Homebrew::EnvConfig.no_install_from_api?
-        cask_tokens += Homebrew::API::Cask.all_casks.keys
-      end
+        c.sub(%r{^homebrew/cask.*/}, "")
+      end.compact
+      cask_tokens |= Homebrew::API::Cask.all_casks.keys unless Homebrew::EnvConfig.no_install_from_api?
 
       results = search(cask_tokens, string_or_regex)
       results += DidYouMean::SpellChecker.new(dictionary: cask_tokens)
@@ -150,19 +104,17 @@ def search_casks(string_or_regex)
       end.uniq
     end
 
-    def search_names(query, string_or_regex, args)
+    def search_names(string_or_regex, args)
       both = !args.formula? && !args.cask?
 
-      remote_results = search_taps(query, silent: true)
-
       all_formulae = if args.formula? || both
-        search_formulae(string_or_regex) + remote_results[:formulae]
+        search_formulae(string_or_regex)
       else
         []
       end
 
       all_casks = if args.cask? || both
-        search_casks(string_or_regex) + remote_results[:casks]
+        search_casks(string_or_regex)
       else
         []
       end
diff --git a/Library/Homebrew/test/search_spec.rb b/Library/Homebrew/test/search_spec.rb
index 5a2cea48a76b0..ef11e5130a6d1 100644
--- a/Library/Homebrew/test/search_spec.rb
+++ b/Library/Homebrew/test/search_spec.rb
@@ -4,48 +4,6 @@
 require "search"
 
 describe Homebrew::Search do
-  describe "#search_taps" do
-    before do
-      ENV.delete("HOMEBREW_NO_GITHUB_API")
-    end
-
-    it "does not raise if `HOMEBREW_NO_GITHUB_API` is set" do
-      ENV["HOMEBREW_NO_GITHUB_API"] = "1"
-      expect(described_class.search_taps("some-formula")).to match(formulae: [], casks: [])
-    end
-
-    it "does not raise if the network fails" do
-      allow(GitHub::API).to receive(:open_rest).and_raise(GitHub::API::Error)
-
-      expect(described_class.search_taps("some-formula"))
-        .to match(formulae: [], casks: [])
-    end
-
-    it "returns Formulae and Casks separately" do
-      json_response = {
-        "items" => [
-          {
-            "path"       => "Formula/some-formula.rb",
-            "repository" => {
-              "full_name" => "Homebrew/homebrew-foo",
-            },
-          },
-          {
-            "path"       => "Casks/some-cask.rb",
-            "repository" => {
-              "full_name" => "Homebrew/homebrew-bar",
-            },
-          },
-        ],
-      }
-
-      allow(GitHub::API).to receive(:open_rest).and_return(json_response)
-
-      expect(described_class.search_taps("some-formula"))
-        .to match(formulae: ["homebrew/foo/some-formula"], casks: ["homebrew/bar/some-cask"])
-    end
-  end
-
   describe "#query_regexp" do
     it "correctly parses a regex query" do
       expect(described_class.query_regexp("/^query$/")).to eq(/^query$/)
diff --git a/Library/Homebrew/test/utils/github_spec.rb b/Library/Homebrew/test/utils/github_spec.rb
index a3102edf0412a..52db77d05a69d 100644
--- a/Library/Homebrew/test/utils/github_spec.rb
+++ b/Library/Homebrew/test/utils/github_spec.rb
@@ -4,17 +4,6 @@
 require "utils/github"
 
 describe GitHub do
-  describe "::search_code", :needs_network do
-    it "queries GitHub code with the passed parameters" do
-      results = described_class.search_code(repo: "Homebrew/brew", path: "/",
-                                            filename: "readme", extension: "md")
-
-      expect(results.count).to eq(1)
-      expect(results.first["name"]).to eq("README.md")
-      expect(results.first["path"]).to eq("README.md")
-    end
-  end
-
   describe "::search_query_string" do
     it "builds a query with the given hash parameters formatted as key:value" do
       query = described_class.search_query_string(user: "Homebrew", repo: "brew")
diff --git a/Library/Homebrew/utils/github.rb b/Library/Homebrew/utils/github.rb
index 848d11591b7fd..eda003b5603d1 100644
--- a/Library/Homebrew/utils/github.rb
+++ b/Library/Homebrew/utils/github.rb
@@ -58,10 +58,6 @@ def self.repository(user, repo)
     API.open_rest(url_to("repos", user, repo))
   end
 
-  def self.search_code(repo: nil, user: "Homebrew", path: ["Formula", "Casks", "."], filename: nil, extension: "rb")
-    search_results_items("code", user: user, path: path, filename: filename, extension: extension, repo: repo)
-  end
-
   def self.issues_for_formula(name, tap: CoreTap.instance, tap_remote_repo: tap&.full_name, state: nil)
     return [] unless tap_remote_repo
 
diff --git a/completions/fish/brew.fish b/completions/fish/brew.fish
index 6e6a0e618d3ca..d0898b0fc34d0 100644
--- a/completions/fish/brew.fish
+++ b/completions/fish/brew.fish
@@ -277,7 +277,7 @@ __fish_brew_complete_arg '--repository' -a '(__fish_brew_suggest_taps_installed)
 
 __fish_brew_complete_cmd '-S' 'Perform a substring search of cask tokens and formula names for text'
 __fish_brew_complete_arg '-S' -l archlinux -d 'Search for text in the given database'
-__fish_brew_complete_arg '-S' -l cask -d 'Search online and locally for casks'
+__fish_brew_complete_arg '-S' -l cask -d 'Search for casks'
 __fish_brew_complete_arg '-S' -l closed -d 'Search for only closed GitHub pull requests'
 __fish_brew_complete_arg '-S' -l debian -d 'Search for text in the given database'
 __fish_brew_complete_arg '-S' -l debug -d 'Display any debugging information'
@@ -285,7 +285,7 @@ __fish_brew_complete_arg '-S' -l desc -d 'Search for formulae with a description
 __fish_brew_complete_arg '-S' -l eval-all -d 'Evaluate all available formulae and casks, whether installed or not, to search their descriptions. Implied if `HOMEBREW_EVAL_ALL` is set'
 __fish_brew_complete_arg '-S' -l fedora -d 'Search for text in the given database'
 __fish_brew_complete_arg '-S' -l fink -d 'Search for text in the given database'
-__fish_brew_complete_arg '-S' -l formula -d 'Search online and locally for formulae'
+__fish_brew_complete_arg '-S' -l formula -d 'Search for formulae'
 __fish_brew_complete_arg '-S' -l help -d 'Show this message'
 __fish_brew_complete_arg '-S' -l macports -d 'Search for text in the given database'
 __fish_brew_complete_arg '-S' -l open -d 'Search for only open GitHub pull requests'
@@ -1336,7 +1336,7 @@ __fish_brew_complete_arg 'ruby' -l r -d 'Load a library using `require`'
 
 __fish_brew_complete_cmd 'search' 'Perform a substring search of cask tokens and formula names for text'
 __fish_brew_complete_arg 'search' -l archlinux -d 'Search for text in the given database'
-__fish_brew_complete_arg 'search' -l cask -d 'Search online and locally for casks'
+__fish_brew_complete_arg 'search' -l cask -d 'Search for casks'
 __fish_brew_complete_arg 'search' -l closed -d 'Search for only closed GitHub pull requests'
 __fish_brew_complete_arg 'search' -l debian -d 'Search for text in the given database'
 __fish_brew_complete_arg 'search' -l debug -d 'Display any debugging information'
@@ -1344,7 +1344,7 @@ __fish_brew_complete_arg 'search' -l desc -d 'Search for formulae with a descrip
 __fish_brew_complete_arg 'search' -l eval-all -d 'Evaluate all available formulae and casks, whether installed or not, to search their descriptions. Implied if `HOMEBREW_EVAL_ALL` is set'
 __fish_brew_complete_arg 'search' -l fedora -d 'Search for text in the given database'
 __fish_brew_complete_arg 'search' -l fink -d 'Search for text in the given database'
-__fish_brew_complete_arg 'search' -l formula -d 'Search online and locally for formulae'
+__fish_brew_complete_arg 'search' -l formula -d 'Search for formulae'
 __fish_brew_complete_arg 'search' -l help -d 'Show this message'
 __fish_brew_complete_arg 'search' -l macports -d 'Search for text in the given database'
 __fish_brew_complete_arg 'search' -l open -d 'Search for only open GitHub pull requests'
diff --git a/completions/zsh/_brew b/completions/zsh/_brew
index 77516db3a5fe9..c4a5657009e3f 100644
--- a/completions/zsh/_brew
+++ b/completions/zsh/_brew
@@ -360,7 +360,7 @@ _brew___repository() {
 _brew__s() {
   _arguments \
     '(--repology --macports --fink --opensuse --fedora --debian --ubuntu)--archlinux[Search for text in the given database]' \
-    '--cask[Search online and locally for casks]' \
+    '--cask[Search for casks]' \
     '(--open)--closed[Search for only closed GitHub pull requests]' \
     '(--repology --macports --fink --opensuse --fedora --archlinux --ubuntu)--debian[Search for text in the given database]' \
     '--debug[Display any debugging information]' \
@@ -368,7 +368,7 @@ _brew__s() {
     '--eval-all[Evaluate all available formulae and casks, whether installed or not, to search their descriptions. Implied if `HOMEBREW_EVAL_ALL` is set]' \
     '(--repology --macports --fink --opensuse --archlinux --debian --ubuntu)--fedora[Search for text in the given database]' \
     '(--repology --macports --opensuse --fedora --archlinux --debian --ubuntu)--fink[Search for text in the given database]' \
-    '--formula[Search online and locally for formulae]' \
+    '--formula[Search for formulae]' \
     '--help[Show this message]' \
     '(--repology --fink --opensuse --fedora --archlinux --debian --ubuntu)--macports[Search for text in the given database]' \
     '(--closed)--open[Search for only open GitHub pull requests]' \
@@ -1634,7 +1634,7 @@ _brew_ruby() {
 _brew_search() {
   _arguments \
     '(--repology --macports --fink --opensuse --fedora --debian --ubuntu)--archlinux[Search for text in the given database]' \
-    '--cask[Search online and locally for casks]' \
+    '--cask[Search for casks]' \
     '(--open)--closed[Search for only closed GitHub pull requests]' \
     '(--repology --macports --fink --opensuse --fedora --archlinux --ubuntu)--debian[Search for text in the given database]' \
     '--debug[Display any debugging information]' \
@@ -1642,7 +1642,7 @@ _brew_search() {
     '--eval-all[Evaluate all available formulae and casks, whether installed or not, to search their descriptions. Implied if `HOMEBREW_EVAL_ALL` is set]' \
     '(--repology --macports --fink --opensuse --archlinux --debian --ubuntu)--fedora[Search for text in the given database]' \
     '(--repology --macports --opensuse --fedora --archlinux --debian --ubuntu)--fink[Search for text in the given database]' \
-    '--formula[Search online and locally for formulae]' \
+    '--formula[Search for formulae]' \
     '--help[Show this message]' \
     '(--repology --fink --opensuse --fedora --archlinux --debian --ubuntu)--macports[Search for text in the given database]' \
     '(--closed)--open[Search for only open GitHub pull requests]' \
diff --git a/docs/Manpage.md b/docs/Manpage.md
index c750609599e5d..0a6d77456bd1f 100644
--- a/docs/Manpage.md
+++ b/docs/Manpage.md
@@ -602,12 +602,11 @@ reinstalled formulae or, every 30 days, for all formulae.
 
 Perform a substring search of cask tokens and formula names for *`text`*. If *`text`*
 is flanked by slashes, it is interpreted as a regular expression.
-The search for *`text`* is extended online to `homebrew/core` and `homebrew/cask`.
 
 * `--formula`:
-  Search online and locally for formulae.
+  Search for formulae.
 * `--cask`:
-  Search online and locally for casks.
+  Search for casks.
 * `--desc`:
   Search for formulae with a description matching *`text`* and casks with a name or description matching *`text`*.
 * `--eval-all`:
diff --git a/manpages/brew.1 b/manpages/brew.1
index 21dcd95b53259..a884e3db511b4 100644
--- a/manpages/brew.1
+++ b/manpages/brew.1
@@ -836,15 +836,15 @@ Skip installing cask dependencies\.
 For use with \fBbrew reinstall \-\-cask\fR\. Remove all files associated with a cask\. \fIMay remove files which are shared between applications\.\fR
 .
 .SS "\fBsearch\fR, \fB\-S\fR [\fIoptions\fR] \fItext\fR|\fB/\fR\fIregex\fR\fB/\fR [\.\.\.]"
-Perform a substring search of cask tokens and formula names for \fItext\fR\. If \fItext\fR is flanked by slashes, it is interpreted as a regular expression\. The search for \fItext\fR is extended online to \fBhomebrew/core\fR and \fBhomebrew/cask\fR\.
+Perform a substring search of cask tokens and formula names for \fItext\fR\. If \fItext\fR is flanked by slashes, it is interpreted as a regular expression\.
 .
 .TP
 \fB\-\-formula\fR
-Search online and locally for formulae\.
+Search for formulae\.
 .
 .TP
 \fB\-\-cask\fR
-Search online and locally for casks\.
+Search for casks\.
 .
 .TP
 \fB\-\-desc\fR