diff --git a/buildtools/webpack.api.js b/buildtools/webpack.api.js
index 171ea08d79aa..fc1f0cc20430 100644
--- a/buildtools/webpack.api.js
+++ b/buildtools/webpack.api.js
@@ -30,28 +30,6 @@ module.exports = (env, argv) => {
   return {
     entry: './api/index.js',
     devtool: 'source-map',
-    module: {
-      rules: [
-        {
-          test: /\.js$/,
-          use: {
-            loader: 'babel-loader',
-            options: {
-              babelrc: false,
-              comments: false,
-              presets: [
-                [
-                  '@babel/preset-env',
-                  {
-                    targets: require('./webpack.share').browsers,
-                  },
-                ],
-              ],
-            },
-          },
-        },
-      ],
-    },
     output: {
       filename: 'api.js',
       path: dest,
diff --git a/buildtools/webpack.commons.js b/buildtools/webpack.commons.js
index 3a6bfbaaddff..30ad6e7a0b57 100644
--- a/buildtools/webpack.commons.js
+++ b/buildtools/webpack.commons.js
@@ -49,15 +49,6 @@ module.exports = function (config) {
     $: 'jquery',
   });
 
-  const babelPresetEnv = [
-    require.resolve('@babel/preset-env'),
-    {
-      targets: config.browsers || require('./webpack.share').browsers,
-      debug: true,
-      loose: true,
-    },
-  ];
-
   // Expose corejs-typeahead as window.Bloodhound
   const typeaheadRule = {
     test: require.resolve('corejs-typeahead'),
@@ -92,6 +83,11 @@ module.exports = function (config) {
     },
   };
 
+  const tsRule = {
+    test: /\.tsx?$/,
+    use: 'ts-loader',
+  };
+
   const cssRule = {
     test: /\.css$/,
     use: ['./buildtools/webpack.scss-loader', 'extract-loader', 'css-loader'],
@@ -142,71 +138,7 @@ module.exports = function (config) {
     };
   }
 
-  // Collect every ts(x) files.
-  const tsRule = {
-    test: /\.tsx?$/,
-    use: {
-      loader: 'babel-loader',
-      options: {
-        babelrc: false,
-        comments: false,
-        assumptions: {
-          setPublicClassFields: true,
-        },
-        presets: [babelPresetEnv],
-        plugins: [
-          [
-            require.resolve('@babel/plugin-transform-typescript'),
-            // TODO remove allowDeclareFields with Babel 8
-            {allowDeclareFields: true},
-          ],
-          [require.resolve('@babel/plugin-proposal-decorators'), {decoratorsBeforeExport: true}],
-        ],
-      },
-    },
-  };
-
   const files = {};
-  const ngeoRule = {
-    // Collect every .js file in ngeo/src/, ngeo/api/ and ngeo/contrib/.
-    test: (file) => {
-      const result = /\/(ngeo)\/(src|api|contribs)\/.*\.js$/.test(file);
-      files[file] = files[file] || {};
-      files[file]['ngeo'] = result;
-      return result;
-    },
-    use: {
-      loader: 'babel-loader',
-      options: {
-        babelrc: false,
-        comments: false,
-        presets: [babelPresetEnv],
-      },
-    },
-  };
-  const otherRule = {
-    // Collect every .js file in the node_modules folder except ones that the folder's name
-    // starts with "angular" or "mapillary".
-    test: (file) => {
-      const js = file.endsWith('.js');
-      const nodeModules = file.includes('/node_modules/');
-      const ngeo = file.includes('/node_modules/ngeo');
-      const angular = file.includes('/node_modules/angular/');
-      const mapillary = file.includes('/node_modules/mapillary-js/');
-      const result = js && nodeModules && !ngeo && !angular && !mapillary;
-      files[file] = files[file] || {};
-      files[file]['other'] = result;
-      return result;
-    },
-    use: {
-      loader: 'babel-loader',
-      options: {
-        babelrc: false,
-        comments: false,
-        presets: [babelPresetEnv],
-      },
-    },
-  };
 
   const plugins = [
     providePlugin,
@@ -296,17 +228,7 @@ module.exports = function (config) {
       path: path.resolve(__dirname, '../dist/'),
     },
     module: {
-      rules: [
-        typeaheadRule,
-        jqueryRule,
-        gmfapiExpose,
-        cssRule,
-        sassRule,
-        htmlRule,
-        tsRule,
-        ngeoRule,
-        otherRule,
-      ],
+      rules: [typeaheadRule, jqueryRule, gmfapiExpose, cssRule, sassRule, htmlRule, tsRule],
     },
     plugins: plugins,
     resolve: {
diff --git a/buildtools/webpack.config.dll.js b/buildtools/webpack.config.dll.js
index 9d6357857a83..c8405eb79227 100644
--- a/buildtools/webpack.config.dll.js
+++ b/buildtools/webpack.config.dll.js
@@ -32,28 +32,6 @@ module.exports = {
     filename: '[name].js',
     library: '[name]',
   },
-  module: {
-    rules: [
-      {
-        test: /.*\.js$/,
-        use: {
-          loader: 'babel-loader',
-          options: {
-            babelrc: false,
-            comments: false,
-            presets: [
-              [
-                require.resolve('@babel/preset-env'),
-                {
-                  targets: require('./webpack.share').browsers,
-                },
-              ],
-            ],
-          },
-        },
-      },
-    ],
-  },
   plugins: [
     new webpack.DllPlugin({
       path: path.resolve(__dirname, '../dist/vendor-manifest.json'),
diff --git a/buildtools/webpack.share.js b/buildtools/webpack.share.js
deleted file mode 100644
index 1229401d40cd..000000000000
--- a/buildtools/webpack.share.js
+++ /dev/null
@@ -1,25 +0,0 @@
-// The MIT License (MIT)
-//
-// Copyright (c) 2018-2024 Camptocamp SA
-//
-// Permission is hereby granted, free of charge, to any person obtaining a copy of
-// this software and associated documentation files (the "Software"), to deal in
-// the Software without restriction, including without limitation the rights to
-// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
-// the Software, and to permit persons to whom the Software is furnished to do so,
-// subject to the following conditions:
-//
-// The above copyright notice and this permission notice shall be included in all
-// copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
-// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
-// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
-// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
-// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-module.exports = {
-  // see: npx browserslist '> 0.7% in CH or > 0.7% in FR or Firefox ESR'
-  browsers: 'defaults, > 0.1% in CH, > 0.1% in FR, Firefox ESR and supports es6-class and not iOS < 10',
-};
diff --git a/package.json b/package.json
index a5d4a12c308f..319a65f3fd70 100644
--- a/package.json
+++ b/package.json
@@ -57,16 +57,6 @@
     "typeahead": "corejs-typeahead"
   },
   "devDependencies": {
-    "@babel/core": "7.25.2",
-    "@babel/plugin-proposal-class-properties": "7.18.6",
-    "@babel/plugin-proposal-decorators": "7.24.7",
-    "@babel/plugin-proposal-nullish-coalescing-operator": "7.18.6",
-    "@babel/plugin-proposal-optional-chaining": "7.21.0",
-    "@babel/plugin-syntax-object-rest-spread": "7.8.3",
-    "@babel/plugin-transform-spread": "7.24.7",
-    "@babel/plugin-transform-typescript": "7.25.2",
-    "@babel/preset-env": "7.25.3",
-    "@babel/preset-typescript": "7.24.7",
     "@eslint/eslintrc": "3.1.0",
     "@eslint/js": "9.9.1",
     "@fortawesome/fontawesome-free": "5.15.4",
@@ -114,7 +104,6 @@
     "angular-touch": "1.8.3",
     "angular-ui-date": "1.1.1",
     "angular-ui-slider": "0.4.0",
-    "babel-loader": "8.3.0",
     "bootstrap": "4.6.2",
     "cheerio": "1.0.0-rc.12",
     "chokidar": "3.6.0",