diff --git a/bin/et b/bin/et
index 38c60777ceb2f..a40b078fc9b61 100755
--- a/bin/et
+++ b/bin/et
@@ -57,4 +57,4 @@ if [ ! -d "${ENGINE_DIR}/tools/engine_tool/.dart_tool" ]; then
   exit 1
 fi
 
-"${DART}" --disable-dart-dev "${ENGINE_DIR}/tools/engine_tool/bin/et.dart" "$@"
+"${DART}" "${ENGINE_DIR}/tools/engine_tool/bin/et.dart" "$@"
diff --git a/bin/et.bat b/bin/et.bat
index b1236e284f715..c813cf6d7ecaa 100644
--- a/bin/et.bat
+++ b/bin/et.bat
@@ -37,4 +37,4 @@ cd "%engine_tool_dir%"
 REM Do not use the CALL command in the next line to execute Dart. CALL causes
 REM Windows to re-read the line from disk after the CALL command has finished
 REM regardless of the ampersand chain.
-"%dart%" --disable-dart-dev bin\et.dart %* & exit /B !ERRORLEVEL!
+"%dart%" bin\et.dart %* & exit /B !ERRORLEVEL!
diff --git a/build/dart/rules.gni b/build/dart/rules.gni
index 2be2ef50a9c8f..9bd1f1870b185 100644
--- a/build/dart/rules.gni
+++ b/build/dart/rules.gni
@@ -65,8 +65,6 @@ template("flutter_frontend_server") {
   ]
   snapshot_depfile = "$kernel_output.d"
 
-  common_vm_args = [ "--disable-dart-dev" ]
-
   flutter_patched_sdk =
       rebase_path("$root_out_dir/flutter_patched_sdk", root_build_dir)
 
@@ -106,7 +104,7 @@ template("flutter_frontend_server") {
       frontend_server =
           rebase_path("$root_gen_dir/frontend_server_aot.dart.snapshot")
 
-      args = [ dart ] + common_vm_args + [ frontend_server ] + common_args
+      args = [ dart ] + [ frontend_server ] + common_args
     }
   } else {
     prebuilt_dart_action(target_name) {
@@ -122,8 +120,7 @@ template("flutter_frontend_server") {
       inputs = [ invoker.main_dart ]
       outputs = [ invoker.kernel_output ]
       depfile = snapshot_depfile
-      vm_args = common_vm_args
-      args = common_args
+      vm_args = (args = common_args)
     }
   }
 }
@@ -337,7 +334,6 @@ template("application_snapshot") {
   abs_output = rebase_path(output)
   rel_output = rebase_path(output, root_build_dir)
   snapshot_vm_args = [
-    "--disable-dart-dev",
     "--deterministic",
     "--packages=$package_config",
     "--snapshot=$abs_output",
diff --git a/ci/analyze.sh b/ci/analyze.sh
index 93aac71198732..af8d1d1934c50 100755
--- a/ci/analyze.sh
+++ b/ci/analyze.sh
@@ -78,5 +78,5 @@ WEB_SDK_TEST_FILES="$FLUTTER_DIR/web_sdk/test/*"
 for testFile in $WEB_SDK_TEST_FILES
 do
   echo "Running $testFile"
-  (cd "$FLUTTER_DIR"; FLUTTER_DIR="$FLUTTER_DIR" "$DART" --disable-dart-dev --enable-asserts $testFile)
+  (cd "$FLUTTER_DIR"; FLUTTER_DIR="$FLUTTER_DIR" "$DART" --enable-asserts $testFile)
 done
diff --git a/ci/bin/format.dart b/ci/bin/format.dart
index c12821524cccf..b165dd5a7854c 100644
--- a/ci/bin/format.dart
+++ b/ci/bin/format.dart
@@ -1049,7 +1049,6 @@ final class HeaderFormatChecker extends FormatChecker {
     }
     final List<String> args = <String>[
       _dartBin,
-      '--disable-dart-dev',
       _headerGuardCheckBin,
       ...include.map((String f) => '--include=$f'),
     ];
@@ -1078,7 +1077,6 @@ final class HeaderFormatChecker extends FormatChecker {
     }
     final List<String> args = <String>[
       _dartBin,
-      '--disable-dart-dev',
       _headerGuardCheckBin,
       '--fix',
       ...include.map((String f) => '--include=$f'),
diff --git a/ci/check_build_configs.sh b/ci/check_build_configs.sh
index 1c5cff9992dc4..425e9dda5c893 100755
--- a/ci/check_build_configs.sh
+++ b/ci/check_build_configs.sh
@@ -43,7 +43,6 @@ DART="${DART_BIN}/dart"
 
 cd "$SCRIPT_DIR"
 "$DART" \
-  --disable-dart-dev \
   "$SRC_DIR/flutter/tools/pkg/engine_build_configs/bin/check.dart" \
   "$SRC_DIR"
 
diff --git a/ci/clang_tidy.sh b/ci/clang_tidy.sh
index aa0c0471d6a26..8eaebc5b2e88d 100755
--- a/ci/clang_tidy.sh
+++ b/ci/clang_tidy.sh
@@ -68,7 +68,6 @@ echo "$(date +%T) Running clang_tidy"
 
 cd "$SCRIPT_DIR"
 "$DART" \
-  --disable-dart-dev \
   "$SRC_DIR/flutter/tools/clang_tidy/bin/main.dart" \
   --src-dir="$SRC_DIR" \
   ${CLANG_TIDY_PATH:+--clang-tidy="$SRC_DIR/$CLANG_TIDY_PATH"} \
diff --git a/ci/format.bat b/ci/format.bat
index 8a12f07833c79..b8c5d8ad71a48 100644
--- a/ci/format.bat
+++ b/ci/format.bat
@@ -37,4 +37,4 @@ cd "%ci_dir%"
 REM Do not use the CALL command in the next line to execute Dart. CALL causes
 REM Windows to re-read the line from disk after the CALL command has finished
 REM regardless of the ampersand chain.
-"%dart%" --disable-dart-dev bin\format.dart %* & exit /B !ERRORLEVEL!
+"%dart%" bin\format.dart %* & exit /B !ERRORLEVEL!
diff --git a/ci/format.sh b/ci/format.sh
index bb5e72a216473..8bdd9424d010f 100755
--- a/ci/format.sh
+++ b/ci/format.sh
@@ -42,6 +42,5 @@ DART="${DART_BIN}/dart"
 
 cd "$SCRIPT_DIR"
 "$DART" \
-  --disable-dart-dev \
   bin/format.dart \
   "$@"
diff --git a/ci/licenses.sh b/ci/licenses.sh
index 73a5d90da309a..9e366d2ce9516 100755
--- a/ci/licenses.sh
+++ b/ci/licenses.sh
@@ -81,7 +81,7 @@ dart --version
 # Runs the tests for the license script.
 function run_tests() (
   cd "$SRC_DIR/flutter/tools/licenses"
-  find . -name "*_test.dart" | xargs -n 1 dart --disable-dart-dev --enable-asserts
+  find . -name "*_test.dart" | xargs -n 1 dart -enable-asserts
 )
 
 # Collects the license information from the repo.
@@ -94,7 +94,6 @@ function collect_licenses() (
   # interpreter is faster than using unoptimized machine code, which has
   # no chance of being optimized(due to its size).
   dart \
-    --disable-dart-dev \
     --enable-asserts \
     --interpret_irregexp \
     lib/main.dart \
diff --git a/testing/benchmark/upload_metrics.sh b/testing/benchmark/upload_metrics.sh
index b32cd4b334a60..5d7a871a37c9f 100644
--- a/testing/benchmark/upload_metrics.sh
+++ b/testing/benchmark/upload_metrics.sh
@@ -47,21 +47,21 @@ VARIANT=$1
 shift 1
 
 cd "$SCRIPT_DIR"
-"$DART" --disable-dart-dev bin/parse_and_send.dart \
+"$DART" bin/parse_and_send.dart \
   --json $ENGINE_PATH/src/out/${VARIANT}/txt_benchmarks.json "$@"
-"$DART" --disable-dart-dev bin/parse_and_send.dart \
+"$DART" bin/parse_and_send.dart \
   --json $ENGINE_PATH/src/out/${VARIANT}/fml_benchmarks.json "$@"
-"$DART" --disable-dart-dev bin/parse_and_send.dart \
+"$DART" bin/parse_and_send.dart \
   --json $ENGINE_PATH/src/out/${VARIANT}/shell_benchmarks.json "$@"
-"$DART" --disable-dart-dev bin/parse_and_send.dart \
+"$DART" bin/parse_and_send.dart \
   --json $ENGINE_PATH/src/out/${VARIANT}/ui_benchmarks.json "$@"
-"$DART" --disable-dart-dev bin/parse_and_send.dart \
+"$DART" bin/parse_and_send.dart \
   --json $ENGINE_PATH/src/out/${VARIANT}/display_list_builder_benchmarks.json "$@"
-"$DART" --disable-dart-dev bin/parse_and_send.dart \
+"$DART" bin/parse_and_send.dart \
   --json $ENGINE_PATH/src/out/${VARIANT}/display_list_region_benchmarks.json "$@"
-"$DART" --disable-dart-dev bin/parse_and_send.dart \
+"$DART" bin/parse_and_send.dart \
   --json $ENGINE_PATH/src/out/${VARIANT}/display_list_transform_benchmarks.json "$@"
-"$DART" --disable-dart-dev bin/parse_and_send.dart \
+"$DART" bin/parse_and_send.dart \
   --json $ENGINE_PATH/src/out/${VARIANT}/geometry_benchmarks.json "$@"
-"$DART" --disable-dart-dev bin/parse_and_send.dart \
+"$DART" bin/parse_and_send.dart \
   --json $ENGINE_PATH/src/out/${VARIANT}/canvas_benchmarks.json "$@"
diff --git a/testing/run_tests.py b/testing/run_tests.py
index 24bab000475b9..84953684608ac 100755
--- a/testing/run_tests.py
+++ b/testing/run_tests.py
@@ -1016,7 +1016,7 @@ def run_benchmark_tests(build_dir):
   test_dir = os.path.join(BUILDROOT_DIR, 'flutter', 'testing', 'benchmark')
   dart_tests = glob.glob('%s/test/*_test.dart' % test_dir)
   for dart_test_file in dart_tests:
-    opts = ['--disable-dart-dev', dart_test_file]
+    opts = [dart_test_file]
     run_engine_executable(
         build_dir, os.path.join('dart-sdk', 'bin', 'dart'), None, flags=opts, cwd=test_dir
     )
@@ -1114,7 +1114,7 @@ def run_impeller_golden_tests(build_dir: str, require_skia_gold: bool = False):
     golden_path = os.path.join('testing', 'impeller_golden_tests_output.txt')
     script_path = os.path.join('tools', 'dir_contents_diff', 'bin', 'dir_contents_diff.dart')
     diff_result = subprocess.run(
-        f'{dart_bin} --disable-dart-dev {script_path} {golden_path} {temp_dir}',
+        f'{dart_bin} {script_path} {golden_path} {temp_dir}',
         check=False,
         shell=True,
         stdout=subprocess.PIPE,
@@ -1154,7 +1154,7 @@ def run_impeller_golden_tests(build_dir: str, require_skia_gold: bool = False):
 
     with DirectoryChange(harvester_path):
       bin_path = Path('.').joinpath('bin').joinpath('golden_tests_harvester.dart')
-      run_cmd([dart_bin, '--disable-dart-dev', str(bin_path), temp_dir])
+      run_cmd([dart_bin, str(bin_path), temp_dir])
 
 
 def main():
diff --git a/tools/api_check/README.md b/tools/api_check/README.md
index a1bdfbe1f44ea..adc20af73dbfd 100644
--- a/tools/api_check/README.md
+++ b/tools/api_check/README.md
@@ -3,16 +3,15 @@
 Verifies that enums in each of the platform-specific embedders, and the embedder
 API remain consistent with their API in dart:ui.
 
-### Running the tool
+## Running the tool
 
 This tool is run as part of `testing/run_tests.sh`.
 
 To run the tool, invoke with the path of the Flutter engine repo as the first
 argument.
 
-```
+```sh
 ../../../out/host_debug_unopt/dart-sdk/bin/dart \
-  --disable-dart-dev                            \
   test/apicheck_test.dart                       \
   "$(dirname $(dirname $PWD))"
 ```
diff --git a/tools/engine_tool/lib/src/commands/lint_command.dart b/tools/engine_tool/lib/src/commands/lint_command.dart
index 3265e35457447..e8022588f5b8e 100644
--- a/tools/engine_tool/lib/src/commands/lint_command.dart
+++ b/tools/engine_tool/lib/src/commands/lint_command.dart
@@ -51,7 +51,7 @@ final class LintCommand extends CommandBase {
     ]);
     _linters[Linter.java] =
         _LinterDescription(Linter.java, environment.engine.flutterDir, <String>[
-      findDartBinary(environment), '--disable-dart-dev',
+      findDartBinary(environment),
       p.join(engineFlutterPath, 'tools', 'android_lint', 'bin', 'main.dart'),
     ]);
     _linters[Linter.c] = _LinterDescription(
diff --git a/tools/githooks/post-checkout b/tools/githooks/post-checkout
index a3d6654de3fca..42febf37f3c73 100755
--- a/tools/githooks/post-checkout
+++ b/tools/githooks/post-checkout
@@ -30,7 +30,6 @@ def Main(argv):
 
   result = subprocess.run([
     os.path.join(GetDartBin(), 'dart'),
-    '--disable-dart-dev',
     os.path.join(FLUTTER_DIR, 'tools', 'githooks', 'bin', 'main.dart'),
   ] + githook_args + [
     'post-checkout',
diff --git a/tools/githooks/post-merge b/tools/githooks/post-merge
index 91cbe9ee73fbe..447420e327aa4 100755
--- a/tools/githooks/post-merge
+++ b/tools/githooks/post-merge
@@ -30,7 +30,6 @@ def Main(argv):
 
   result = subprocess.run([
     os.path.join(GetDartBin(), 'dart'),
-    '--disable-dart-dev',
     os.path.join(FLUTTER_DIR, 'tools', 'githooks', 'bin', 'main.dart'),
   ] + githook_args + [
     'post-merge',
diff --git a/tools/githooks/pre-push b/tools/githooks/pre-push
index 5b95d51b6d445..f4193449f0741 100755
--- a/tools/githooks/pre-push
+++ b/tools/githooks/pre-push
@@ -37,7 +37,6 @@ def Main(argv):
 
   result = subprocess.run([
     os.path.join(GetDartBin(), 'dart'),
-    '--disable-dart-dev',
     os.path.join(FLUTTER_DIR, 'tools', 'githooks', 'bin', 'main.dart'),
   ] + githook_args + [
     'pre-push',
diff --git a/tools/githooks/pre-rebase b/tools/githooks/pre-rebase
index 56082c4a6aa49..76e16cc8c56de 100755
--- a/tools/githooks/pre-rebase
+++ b/tools/githooks/pre-rebase
@@ -30,7 +30,6 @@ def Main(argv):
 
   result = subprocess.run([
     os.path.join(GetDartBin(), 'dart'),
-    '--disable-dart-dev',
     os.path.join(FLUTTER_DIR, 'tools', 'githooks', 'bin', 'main.dart'),
   ] + githook_args + [
     'pre-rebase',