diff --git a/app/jobs/onceoff/fix_invalid_upload_extensions.rb b/app/jobs/onceoff/fix_invalid_upload_extensions.rb
deleted file mode 100644
index a5a6f98921faf..0000000000000
--- a/app/jobs/onceoff/fix_invalid_upload_extensions.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-# frozen_string_literal: true
-
-module Jobs
-  class FixInvalidUploadExtensions < ::Jobs::Onceoff
-    def execute_onceoff(args)
-      UploadFixer.fix_all_extensions
-    end
-  end
-end
diff --git a/lib/tasks/uploads.rake b/lib/tasks/uploads.rake
index 3680307404f2c..b76fde48d3cc8 100644
--- a/lib/tasks/uploads.rake
+++ b/lib/tasks/uploads.rake
@@ -507,10 +507,6 @@ task "uploads:analyze", %i[cache_path limit] => :environment do |_, args|
   puts "Duration: #{Time.zone.now - now} seconds"
 end
 
-task "uploads:fix_incorrect_extensions" => :environment do
-  UploadFixer.fix_all_extensions
-end
-
 task "uploads:recover_from_tombstone" => :environment do
   Rake::Task["uploads:recover"].invoke
 end
diff --git a/lib/upload_fixer.rb b/lib/upload_fixer.rb
deleted file mode 100644
index 799824b689537..0000000000000
--- a/lib/upload_fixer.rb
+++ /dev/null
@@ -1,80 +0,0 @@
-# frozen_string_literal: true
-
-class UploadFixer
-  def self.fix_all_extensions
-    Upload
-      .where("uploads.extension IS NOT NULL")
-      .find_each { |upload| fix_extension_on_upload(upload) }
-  end
-
-  def self.fix_extension_on_upload(upload)
-    is_external = Discourse.store.external?
-    previous_url = upload.url.dup
-
-    source =
-      if is_external
-        "https:#{previous_url}"
-      else
-        Discourse.store.path_for(upload)
-      end
-
-    correct_extension = FastImage.type(source).to_s.downcase
-    current_extension = upload.extension.to_s.downcase
-
-    if correct_extension.present?
-      correct_extension = "jpg" if correct_extension == "jpeg"
-      current_extension = "jpg" if current_extension == "jpeg"
-
-      if correct_extension != current_extension
-        new_filename = change_extension(upload.original_filename, correct_extension)
-
-        new_url = change_extension(previous_url, correct_extension)
-
-        if is_external
-          new_url = "/#{new_url}"
-          source = Discourse.store.get_path_for_upload(upload)
-          destination = change_extension(source, correct_extension)
-
-          Discourse.store.copy_file(previous_url, source, destination)
-
-          upload.update!(
-            original_filename: new_filename,
-            url: new_url,
-            extension: correct_extension,
-          )
-
-          DbHelper.remap(previous_url, upload.url)
-          Discourse.store.remove_file(previous_url, source)
-        else
-          destination = change_extension(source, correct_extension)
-          FileUtils.copy(source, destination)
-
-          upload.update!(
-            original_filename: new_filename,
-            url: new_url,
-            extension: correct_extension,
-          )
-
-          DbHelper.remap(previous_url, upload.url)
-
-          tombstone_path = source.sub("/uploads/", "/uploads/tombstone/")
-          FileUtils.mkdir_p(File.dirname(tombstone_path))
-
-          FileUtils.move(source, tombstone_path)
-        end
-      end
-    end
-  rescue => e
-    STDERR.puts "Skipping upload: failed to correct extension on upload id: #{upload.id} #{current_extension} => #{correct_extension}"
-    STDERR.puts e
-  end
-
-  private
-
-  def self.change_extension(path, extension)
-    pathname = Pathname.new(path)
-    dirname = pathname.dirname.to_s != "." ? "#{pathname.dirname}/" : ""
-    basename = File.basename(path, File.extname(path))
-    "#{dirname}#{basename}.#{extension}"
-  end
-end