diff --git a/common/tools/dev-tool/src/commands/run/index.ts b/common/tools/dev-tool/src/commands/run/index.ts
index 944fc7e3b06e..f0c856869174 100644
--- a/common/tools/dev-tool/src/commands/run/index.ts
+++ b/common/tools/dev-tool/src/commands/run/index.ts
@@ -1,13 +1,12 @@
 // Copyright (c) Microsoft Corporation.
 // Licensed under the MIT license
 
-import { subCommand, makeCommandInfo } from "../../framework/command";
+import { makeCommandInfo, subCommand } from "../../framework/command";
 
 export const commandInfo = makeCommandInfo("run", "run scripts such as test:node");
 
 export default subCommand(commandInfo, {
   "test:node-tsx-ts": () => import("./testNodeTsxTS"),
-  "test:node-tsx-js": () => import("./testNodeTsxJS"),
   "test:node-ts-input": () => import("./testNodeTSInput"),
   "test:node-js-input": () => import("./testNodeJSInput"),
   "test:browser": () => import("./testBrowser"),
diff --git a/common/tools/dev-tool/src/commands/run/testNodeJSInput.ts b/common/tools/dev-tool/src/commands/run/testNodeJSInput.ts
index ad1c698e10c0..60707e05ef6e 100644
--- a/common/tools/dev-tool/src/commands/run/testNodeJSInput.ts
+++ b/common/tools/dev-tool/src/commands/run/testNodeJSInput.ts
@@ -2,9 +2,9 @@
 // Licensed under the MIT license
 
 import { leafCommand, makeCommandInfo } from "../../framework/command";
+
 import concurrently from "concurrently";
 import { createPrinter } from "../../util/printer";
-import { isModuleProject } from "../../util/resolveProject";
 import { runTestsWithProxyTool } from "../../util/testUtils";
 
 export const commandInfo = makeCommandInfo(
@@ -17,31 +17,13 @@ export const commandInfo = makeCommandInfo(
       default: false,
       description: "whether to run with test-proxy",
     },
-    "use-esm-workaround": {
-      shortName: "uew",
-      kind: "boolean",
-      default: false,
-      description:
-        "when true, uses the `esm` npm package for tests. Otherwise uses esm4mocha if needed",
-    },
   },
 );
 
 export default leafCommand(commandInfo, async (options) => {
-  const isModule = await isModuleProject();
-  let esmLoaderArgs = "";
-
-  if (isModule === false) {
-    if (options["use-esm-workaround"] === false) {
-      esmLoaderArgs = "--loader=../../../common/tools/esm4mocha.mjs";
-    } else {
-      esmLoaderArgs = "-r ../../../common/tools/esm-workaround -r esm";
-    }
-  }
-
   const reporterArgs =
     "--reporter ../../../common/tools/mocha-multi-reporter.js --reporter-option output=test-results.xml";
-  const defaultMochaArgs = `${esmLoaderArgs} -r source-map-support/register.js ${reporterArgs} --full-trace`;
+  const defaultMochaArgs = `-r source-map-support/register.js ${reporterArgs} --full-trace`;
   const updatedArgs = options["--"]?.map((opt) =>
     opt.includes("**") && !opt.startsWith("'") && !opt.startsWith('"') ? `"${opt}"` : opt,
   );
@@ -49,7 +31,7 @@ export default leafCommand(commandInfo, async (options) => {
     ? updatedArgs.join(" ")
     : '--timeout 5000000 "dist-esm/test/{,!(browser)/**/}/*.spec.js"';
   const command = {
-    command: `c8 mocha ${defaultMochaArgs} ${mochaArgs}`,
+    command: `c8 mocha --require tsx ${defaultMochaArgs} ${mochaArgs}`,
     name: "node-tests",
   };
 
diff --git a/common/tools/dev-tool/src/commands/run/testNodeTsxJS.ts b/common/tools/dev-tool/src/commands/run/testNodeTsxJS.ts
deleted file mode 100644
index 34ae0de6b57e..000000000000
--- a/common/tools/dev-tool/src/commands/run/testNodeTsxJS.ts
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright (c) Microsoft Corporation.
-// Licensed under the MIT license
-
-import { leafCommand, makeCommandInfo } from "../../framework/command";
-import concurrently from "concurrently";
-import { createPrinter } from "../../util/printer";
-import { runTestsWithProxyTool } from "../../util/testUtils";
-
-export const commandInfo = makeCommandInfo(
-  "test:node-js-input",
-  "runs the node tests using mocha with the default and the provided options; starts the proxy-tool in record and playback modes",
-  {
-    "no-test-proxy": {
-      shortName: "ntp",
-      kind: "boolean",
-      default: false,
-      description: "whether to run with test-proxy",
-    },
-  },
-);
-
-export default leafCommand(commandInfo, async (options) => {
-  const reporterArgs =
-    "--reporter ../../../common/tools/mocha-multi-reporter.js --reporter-option output=test-results.xml";
-  const defaultMochaArgs = `-r source-map-support/register.js ${reporterArgs} --full-trace`;
-  const updatedArgs = options["--"]?.map((opt) =>
-    opt.includes("**") && !opt.startsWith("'") && !opt.startsWith('"') ? `"${opt}"` : opt,
-  );
-  const mochaArgs = updatedArgs?.length
-    ? updatedArgs.join(" ")
-    : '--timeout 5000000 "dist-esm/test/{,!(browser)/**/}/*.spec.js"';
-  const command = {
-    command: `c8 mocha --require tsx ${defaultMochaArgs} ${mochaArgs}`,
-    name: "node-tests",
-  };
-
-  if (!options["no-test-proxy"]) {
-    return runTestsWithProxyTool(command);
-  }
-
-  createPrinter("test-info").info("Running tests without test-proxy");
-  await concurrently([command]).result;
-  return true;
-});
diff --git a/sdk/appconfiguration/app-configuration/package.json b/sdk/appconfiguration/app-configuration/package.json
index 98b8cb8a81b2..6703c94fa2a8 100644
--- a/sdk/appconfiguration/app-configuration/package.json
+++ b/sdk/appconfiguration/app-configuration/package.json
@@ -53,7 +53,7 @@
     "pack": "npm pack 2>&1",
     "integration-test": "npm run integration-test:node && npm run integration-test:browser",
     "integration-test:browser": "npm run build:test && dev-tool run test:browser",
-    "integration-test:node": "dev-tool run test:node-tsx-js -- --timeout 180000 'dist-esm/test/**/*.spec.js'",
+    "integration-test:node": "dev-tool run test:node-js-input -- --timeout 180000 'dist-esm/test/**/*.spec.js'",
     "test:browser": "npm run clean && npm run build:test && npm run unit-test:browser",
     "test:node": "npm run clean && npm run build:test && npm run unit-test:node",
     "test": "npm run test:node && npm run test:browser",
diff --git a/sdk/cognitivelanguage/ai-language-text/package.json b/sdk/cognitivelanguage/ai-language-text/package.json
index 0eb94954798e..bb0f08cc7c9c 100644
--- a/sdk/cognitivelanguage/ai-language-text/package.json
+++ b/sdk/cognitivelanguage/ai-language-text/package.json
@@ -73,7 +73,7 @@
     "format": "dev-tool run vendored prettier --write --config ../../../.prettierrc.json --ignore-path ../../../.prettierignore \"src/**/*.ts\" \"test/**/*.ts\" \"samples-dev/**/*.ts\" \"*.{js,json}\"",
     "generate:client": "autorest --typescript swagger/README.md",
     "integration-test:browser": "dev-tool run test:browser",
-    "integration-test:node": "dev-tool run test:node-js-input --use-esm-workaround=true -- --timeout 5000000 \"dist-esm/test/**/*.spec.js\"",
+    "integration-test:node": "dev-tool run test:node-js-input -- --timeout 5000000 \"dist-esm/test/**/*.spec.js\"",
     "integration-test": "npm run integration-test:node && npm run integration-test:browser",
     "lint:fix": "eslint package.json api-extractor.json src test --ext .ts --fix --fix-type [problem,suggestion]",
     "lint": "eslint package.json api-extractor.json src test --ext .ts",
diff --git a/sdk/eventgrid/eventgrid/package.json b/sdk/eventgrid/eventgrid/package.json
index d56fc80c4fe1..67f0fef1903e 100644
--- a/sdk/eventgrid/eventgrid/package.json
+++ b/sdk/eventgrid/eventgrid/package.json
@@ -76,7 +76,7 @@
     "format": "dev-tool run vendored prettier --write --config ../../../.prettierrc.json --ignore-path ../../../.prettierignore \"src/**/*.ts\" \"test/**/*.ts\" \"samples-dev/**/*.ts\" \"*.{js,json}\"",
     "generate:client": "autorest --typescript ./swagger/README.md && node ./scripts/setPathToEmpty.js",
     "integration-test:browser": "dev-tool run test:browser",
-    "integration-test:node": "dev-tool run test:node-tsx-js -- --timeout 5000000 \"dist-esm/test/**/*.spec.js\"",
+    "integration-test:node": "dev-tool run test:node-js-input -- --timeout 5000000 \"dist-esm/test/**/*.spec.js\"",
     "integration-test": "npm run integration-test:node && npm run integration-test:browser",
     "lint:fix": "eslint package.json api-extractor.json README.md src test --ext .ts,.javascript,.js --fix --fix-type [problem,suggestion]",
     "lint": "eslint package.json api-extractor.json README.md src test --ext .ts,.javascript,.js",
diff --git a/sdk/eventhub/event-hubs/package.json b/sdk/eventhub/event-hubs/package.json
index 9def17528196..d45f75cd7acf 100644
--- a/sdk/eventhub/event-hubs/package.json
+++ b/sdk/eventhub/event-hubs/package.json
@@ -52,7 +52,7 @@
     "format": "dev-tool run vendored prettier --write --config ../../../.prettierrc.json --ignore-path ../../../.prettierignore \"src/**/*.ts\" \"test/**/*.ts\" \"samples-dev/**/*.ts\" \"*.{js,json}\"",
     "generate-certs": "node ./scripts/generateCerts.js",
     "integration-test:browser": "cross-env TEST_TARGET=live DISABLE_MULTI_VERSION_TESTING=true karma start --single-run",
-    "integration-test:node": "cross-env TEST_TARGET=live DISABLE_MULTI_VERSION_TESTING=true dev-tool run test:node-js-input --no-test-proxy=true --use-esm-workaround=true -- --timeout 600000 \"dist-esm/test/internal/*.spec.js\" \"dist-esm/test/public/*.spec.js\" \"dist-esm/test/public/**/*.spec.js\" \"dist-esm/test/internal/**/*.spec.js\"",
+    "integration-test:node": "cross-env TEST_TARGET=live DISABLE_MULTI_VERSION_TESTING=true dev-tool run test:node-js-input --no-test-proxy=true -- --timeout 600000 \"dist-esm/test/internal/*.spec.js\" \"dist-esm/test/public/*.spec.js\" \"dist-esm/test/public/**/*.spec.js\" \"dist-esm/test/internal/**/*.spec.js\"",
     "integration-test": "npm run integration-test:node && npm run integration-test:browser",
     "lint:fix": "eslint package.json api-extractor.json README.md src test --ext .ts,.javascript,.js --fix --fix-type [problem,suggestion]",
     "lint": "eslint package.json api-extractor.json README.md src test --ext .ts,.javascript,.js",
diff --git a/sdk/instrumentation/opentelemetry-instrumentation-azure-sdk/package.json b/sdk/instrumentation/opentelemetry-instrumentation-azure-sdk/package.json
index 7fc7f291d676..10cc151168dc 100644
--- a/sdk/instrumentation/opentelemetry-instrumentation-azure-sdk/package.json
+++ b/sdk/instrumentation/opentelemetry-instrumentation-azure-sdk/package.json
@@ -30,7 +30,7 @@
     "format": "dev-tool run vendored prettier --write --config ../../../.prettierrc.json --ignore-path ../../../.prettierignore \"src/**/*.ts\" \"test/**/*.ts\" \"*.{js,json}\"",
     "generate:client": "autorest --typescript ./swagger/README.md",
     "integration-test:browser": "karma start --single-run",
-    "integration-test:node": "dev-tool run test:node-tsx-js --no-test-proxy=true",
+    "integration-test:node": "dev-tool run test:node-js-input --no-test-proxy=true",
     "integration-test": "npm run integration-test:node && npm run integration-test:browser",
     "lint:fix": "eslint package.json api-extractor.json README.md src test --ext .ts,.javascript,.js --fix --fix-type [problem,suggestion]",
     "lint": "eslint package.json api-extractor.json README.md src test --ext .ts,.javascript,.js",
diff --git a/sdk/keyvault/keyvault-admin/package.json b/sdk/keyvault/keyvault-admin/package.json
index 4a7a109cc65d..8661f0004ab5 100644
--- a/sdk/keyvault/keyvault-admin/package.json
+++ b/sdk/keyvault/keyvault-admin/package.json
@@ -56,8 +56,8 @@
     "format": "dev-tool run vendored prettier --write --config ../../../.prettierrc.json --ignore-path ../../../.prettierignore \"src/**/*.ts\" \"test/**/*.ts\" \"samples-dev/**/*.ts\" \"*.{js,json}\"",
     "generate:client": "autorest --typescript swagger/README.md",
     "integration-test:browser": "echo skipped",
-    "integration-test:node": "dev-tool run test:node-js-input --use-esm-workaround=true -- --timeout 180000 --exclude \"dist-esm/**/*.browser.spec.js\" \"dist-esm/**/*.spec.js\"",
-    "integration-test:node:no-timeout": "dev-tool run test:node-js-input --use-esm-workaround=true -- --no-timeouts --full-trace  --exclude \"dist-esm/**/*.browser.spec.js\" \"dist-esm/**/*.spec.js\"",
+    "integration-test:node": "dev-tool run test:node-js-input -- --timeout 180000 --exclude \"dist-esm/**/*.browser.spec.js\" \"dist-esm/**/*.spec.js\"",
+    "integration-test:node:no-timeout": "dev-tool run test:node-js-input -- --no-timeouts --full-trace  --exclude \"dist-esm/**/*.browser.spec.js\" \"dist-esm/**/*.spec.js\"",
     "integration-test": "npm run integration-test:node && npm run integration-test:browser",
     "lint:fix": "eslint package.json src --ext .ts --fix --fix-type [problem,suggestion]",
     "lint": "eslint package.json api-extractor.json src --ext .ts",
diff --git a/sdk/keyvault/keyvault-certificates/package.json b/sdk/keyvault/keyvault-certificates/package.json
index 8e36b53c5345..a0da17e87549 100644
--- a/sdk/keyvault/keyvault-certificates/package.json
+++ b/sdk/keyvault/keyvault-certificates/package.json
@@ -51,8 +51,8 @@
     "format": "dev-tool run vendored prettier --write --config ../../../.prettierrc.json --ignore-path ../../../.prettierignore \"src/**/*.ts\" \"samples-dev/*.ts\" \"test/**/*.ts\" \"samples-dev/**/*.ts\" \"*.{js,json}\"",
     "generate:client": "autorest --typescript swagger/README.md",
     "integration-test:browser": "dev-tool run test:browser",
-    "integration-test:node": "dev-tool run test:node-js-input --use-esm-workaround=true -- --timeout 350000 'dist-esm/**/*.spec.js'",
-    "integration-test:node:no-timeout": "dev-tool run test:node-js-input --use-esm-workaround=true -- --no-timeouts 'dist-esm/**/*.spec.js'",
+    "integration-test:node": "dev-tool run test:node-js-input -- --timeout 350000 'dist-esm/**/*.spec.js'",
+    "integration-test:node:no-timeout": "dev-tool run test:node-js-input -- --no-timeouts 'dist-esm/**/*.spec.js'",
     "integration-test": "npm run integration-test:node && npm run integration-test:browser",
     "lint:fix": "eslint package.json api-extractor.json src test --ext .ts --fix --fix-type [problem,suggestion]",
     "lint": "eslint package.json api-extractor.json src test --ext .ts",
diff --git a/sdk/keyvault/keyvault-keys/package.json b/sdk/keyvault/keyvault-keys/package.json
index fa20d127f457..5b9d4c79cdbc 100644
--- a/sdk/keyvault/keyvault-keys/package.json
+++ b/sdk/keyvault/keyvault-keys/package.json
@@ -57,8 +57,8 @@
     "format": "dev-tool run vendored prettier --write --config ../../../.prettierrc.json --ignore-path ../../../.prettierignore \"src/**/*.ts\" \"test/**/*.ts\" \"samples-dev/**/*.ts\" \"*.{js,json}\"",
     "generate:client": "autorest --typescript swagger/README.md",
     "integration-test:browser": "dev-tool run test:browser",
-    "integration-test:node": "dev-tool run test:node-js-input --use-esm-workaround=true -- --timeout 5000000 'dist-esm/**/*.spec.js'",
-    "integration-test:node:no-timeout": "dev-tool run test:node-js-input --use-esm-workaround=true -- --timeout 9999999 'dist-esm/**/*.spec.js'",
+    "integration-test:node": "dev-tool run test:node-js-input -- --timeout 5000000 'dist-esm/**/*.spec.js'",
+    "integration-test:node:no-timeout": "dev-tool run test:node-js-input -- --timeout 9999999 'dist-esm/**/*.spec.js'",
     "integration-test": "npm run integration-test:node && npm run integration-test:browser",
     "lint:fix": "eslint package.json api-extractor.json src test --ext .ts --fix --fix-type [problem,suggestion]",
     "lint": "eslint package.json api-extractor.json src test --ext .ts",
diff --git a/sdk/keyvault/keyvault-secrets/package.json b/sdk/keyvault/keyvault-secrets/package.json
index f6bfb08d3a7f..170d4198f5ba 100644
--- a/sdk/keyvault/keyvault-secrets/package.json
+++ b/sdk/keyvault/keyvault-secrets/package.json
@@ -52,8 +52,8 @@
     "format": "dev-tool run vendored prettier --write --config ../../../.prettierrc.json --ignore-path ../../../.prettierignore \"src/**/*.ts\" \"test/**/*.ts\" \"samples-dev/**/*.ts\" \"*.{js,json}\"",
     "generate:client": "autorest --typescript swagger/README.md",
     "integration-test:browser": "dev-tool run test:browser",
-    "integration-test:node": "dev-tool run test:node-js-input --use-esm-workaround=true -- --timeout 350000 'dist-esm/**/*.spec.js'",
-    "integration-test:node:no-timeout": "dev-tool run test:node-js-input --use-esm-workaround=true -- --no-timeout 'dist-esm/**/*.spec.js'",
+    "integration-test:node": "dev-tool run test:node-js-input -- --timeout 350000 'dist-esm/**/*.spec.js'",
+    "integration-test:node:no-timeout": "dev-tool run test:node-js-input -- --no-timeout 'dist-esm/**/*.spec.js'",
     "integration-test": "npm run integration-test:node && npm run integration-test:browser",
     "lint:fix": "eslint package.json api-extractor.json src test --ext .ts --fix --fix-type [problem,suggestion]",
     "lint": "eslint package.json api-extractor.json src test --ext .ts",
diff --git a/sdk/monitor/monitor-opentelemetry/package.json b/sdk/monitor/monitor-opentelemetry/package.json
index 35fbd739f19e..7c01800a690c 100644
--- a/sdk/monitor/monitor-opentelemetry/package.json
+++ b/sdk/monitor/monitor-opentelemetry/package.json
@@ -26,7 +26,7 @@
     "test:browser": "npm run unit-test:browser",
     "unit-test:browser": "echo skipped",
     "unit-test:node": "dev-tool run test:node-tsx-ts --no-test-proxy=true -- --timeout 1200000 \"test/internal/unit/**/*.test.ts\"",
-    "unit-test:node:debug": "dev-tool run test:node-tsx-js --no-test-proxy=true -- --inspect-brk --timeout 1200000 \"test/internal/unit/**/*.test.ts\"",
+    "unit-test:node:debug": "dev-tool run test:node-js-input --no-test-proxy=true -- --inspect-brk --timeout 1200000 \"test/internal/unit/**/*.test.ts\"",
     "unit-test": "npm run unit-test:node && npm run unit-test:browser",
     "integration-test:browser": "echo skipped",
     "integration-test:node": "dev-tool run test:node-ts-input --no-test-proxy=true -- \"test/internal/functional/**/*.test.ts\"",
diff --git a/sdk/monitor/monitor-query/package.json b/sdk/monitor/monitor-query/package.json
index 07a25550b58f..5fed2553bcf6 100644
--- a/sdk/monitor/monitor-query/package.json
+++ b/sdk/monitor/monitor-query/package.json
@@ -50,7 +50,7 @@
     "generate:client:metrics-namespaces": "autorest --typescript swagger/metric-namespaces.md",
     "generate:client:metrics-definitions": "autorest --typescript swagger/metric-definitions.md",
     "integration-test:browser": "dev-tool run test:browser",
-    "integration-test:node": "dev-tool run test:node-tsx-js -- --timeout 5000000 'dist-esm/test/**/*.spec.js' 'dist-esm/test/**/**/*.spec.js'",
+    "integration-test:node": "dev-tool run test:node-js-input -- --timeout 5000000 'dist-esm/test/**/*.spec.js' 'dist-esm/test/**/**/*.spec.js'",
     "integration-test": "npm run integration-test:node && npm run integration-test:browser",
     "lint:fix": "eslint package.json api-extractor.json src test --ext .ts --fix --fix-type [problem,suggestion]",
     "lint": "eslint package.json api-extractor.json src test --format unix --ext .ts",
diff --git a/sdk/schemaregistry/schema-registry-avro/package.json b/sdk/schemaregistry/schema-registry-avro/package.json
index 3d3df5b55ac8..78aeb4769ba2 100644
--- a/sdk/schemaregistry/schema-registry-avro/package.json
+++ b/sdk/schemaregistry/schema-registry-avro/package.json
@@ -23,7 +23,7 @@
     "extract-api": "tsc -p . && api-extractor run --local",
     "format": "dev-tool run vendored prettier --write --config ../../../.prettierrc.json --ignore-path ../../../.prettierignore \"src/**/*.ts\" \"test/**/*.ts\" \"samples-dev/**/*.ts\" \"*.{js,json}\"",
     "integration-test:browser": "dev-tool run test:browser",
-    "integration-test:node": "dev-tool run test:node-js-input --use-esm-workaround=true -- --timeout 5000000 'dist-esm/test/**/*.spec.js'",
+    "integration-test:node": "dev-tool run test:node-js-input -- --timeout 5000000 'dist-esm/test/**/*.spec.js'",
     "integration-test": "npm run integration-test:node && npm run integration-test:browser",
     "lint:fix": "eslint package.json api-extractor.json README.md src test --ext .ts,.javascript,.js --fix --fix-type [problem,suggestion]",
     "lint": "eslint package.json api-extractor.json README.md src test --ext .ts,.javascript,.js",
diff --git a/sdk/web-pubsub/web-pubsub-client-protobuf/package.json b/sdk/web-pubsub/web-pubsub-client-protobuf/package.json
index 9fec3b14abf6..f9a5be63de6e 100644
--- a/sdk/web-pubsub/web-pubsub-client-protobuf/package.json
+++ b/sdk/web-pubsub/web-pubsub-client-protobuf/package.json
@@ -33,7 +33,7 @@
     "test:node": "npm run build:test && npm run unit-test:node && npm run integration-test:node",
     "test": "npm run build:test && npm run unit-test && npm run integration-test",
     "unit-test:browser": "echo skipped",
-    "unit-test:node": "dev-tool run test:node-js-input --use-esm-workaround=true --no-test-proxy=true",
+    "unit-test:node": "dev-tool run test:node-js-input --no-test-proxy=true",
     "unit-test": "npm run unit-test:node && npm run unit-test:browser"
   },
   "files": [