diff --git a/CHANGELOG.md b/CHANGELOG.md
index a21f639de..4fa447fc3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -29,6 +29,7 @@
 - Dev: Clarify signal connection lifetimes where applicable. (#4818)
 - Dev: Laid the groundwork for advanced input completion strategies. (#4639, #4846, #4853)
 - Dev: Fixed flickering when running with Direct2D on Windows. (#4851)
+- Dev: Add a compile-time flag `CHATTERINO_DISABLE_UPDATER` to disable update checks. (#4854)
 
 ## 2.4.6
 
diff --git a/CMakeLists.txt b/CMakeLists.txt
index f7e71271a..4f3e1699b 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -27,6 +27,9 @@ option(BUILD_SHARED_LIBS "" OFF)
 option(CHATTERINO_LTO "Enable LTO for all targets" OFF)
 option(CHATTERINO_PLUGINS "Enable EXPERIMENTAL plugin support in Chatterino" OFF)
 
+option(CHATTERINO_UPDATER "Enable update checks" ON)
+mark_as_advanced(CHATTERINO_UPDATER)
+
 if(CHATTERINO_LTO)
     include(CheckIPOSupported)
     check_ipo_supported(RESULT CHATTERINO_ENABLE_LTO OUTPUT IPO_ERROR)
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index a99a4a264..b24a8ac47 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -1039,3 +1039,8 @@ if(CHATTERINO_ENABLE_LTO)
     set_property(TARGET ${LIBRARY_PROJECT}
                  PROPERTY INTERPROCEDURAL_OPTIMIZATION TRUE)
 endif()
+
+if(NOT CHATTERINO_UPDATER)
+    message(STATUS "Disabling the updater.")
+    target_compile_definitions(${LIBRARY_PROJECT} PUBLIC CHATTERINO_DISABLE_UPDATER)
+endif()
diff --git a/src/singletons/Updates.cpp b/src/singletons/Updates.cpp
index b25e52819..54ba974d2 100644
--- a/src/singletons/Updates.cpp
+++ b/src/singletons/Updates.cpp
@@ -250,6 +250,7 @@ void Updates::installUpdates()
 
 void Updates::checkForUpdates()
 {
+#ifndef CHATTERINO_DISABLE_UPDATER
     auto version = Version::instance();
 
     if (!version.isSupportedOS())
@@ -291,7 +292,7 @@ void Updates::checkForUpdates()
                 return Failure;
             }
 
-#if defined Q_OS_WIN || defined Q_OS_MACOS
+#    if defined Q_OS_WIN || defined Q_OS_MACOS
             /// Downloads an installer for the new version
             auto updateExeUrl = object["updateexe"];
             if (!updateExeUrl.isString())
@@ -303,7 +304,7 @@ void Updates::checkForUpdates()
             }
             this->updateExe_ = updateExeUrl.toString();
 
-#    ifdef Q_OS_WIN
+#        ifdef Q_OS_WIN
             /// Windows portable
             auto portableUrl = object["portable_download"];
             if (!portableUrl.isString())
@@ -315,17 +316,17 @@ void Updates::checkForUpdates()
                 return Failure;
             }
             this->updatePortable_ = portableUrl.toString();
-#    endif
+#        endif
 
-#elif defined Q_OS_LINUX
+#    elif defined Q_OS_LINUX
             QJsonValue updateGuide = object.value("updateguide");
             if (updateGuide.isString())
             {
                 this->updateGuideLink_ = updateGuide.toString();
             }
-#else
+#    else
             return Failure;
-#endif
+#    endif
 
             /// Current version
             this->onlineVersion_ = version.toString();
@@ -345,6 +346,7 @@ void Updates::checkForUpdates()
         })
         .execute();
     this->setStatus_(Searching);
+#endif
 }
 
 Updates::Status Updates::getStatus() const