diff --git a/client/src/pre-loader.js b/client/src/pre-loader.js
deleted file mode 100644
index 60b6dd2ee3..0000000000
--- a/client/src/pre-loader.js
+++ /dev/null
@@ -1,172 +0,0 @@
-/************************************************************************
- * This file is part of EspoCRM.
- *
- * EspoCRM - Open Source CRM application.
- * Copyright (C) 2014-2023 Yurii Kuznietsov, Taras Machyshyn, Oleksii Avramenko
- * Website: https://www.espocrm.com
- *
- * EspoCRM is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * EspoCRM is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with EspoCRM. If not, see http://www.gnu.org/licenses/.
- *
- * The interactive user interfaces in modified source and object code versions
- * of this program must display Appropriate Legal Notices, as required under
- * Section 5 of the GNU General Public License version 3.
- *
- * In accordance with Section 7(b) of the GNU General Public License version 3,
- * these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
- ************************************************************************/
-
-/**
- * A pre-loader.
- *
- * Not used.
- *
- * @class
- * @param {module:cache} cache A cache.
- * @param {Bull.Factory} viewFactory A view factory.
- * @param {string} [basePath] A base path.
- */
-const PreLoader = function (cache, viewFactory, basePath) {
-    /**
-     * @private
-     * @type {module:cache}
-     */
-    this.cache = cache;
-
-    /**
-     * @private
-     * @type {Bull.Factory}
-     */
-    this.viewFactory = viewFactory;
-
-    /**
-     * @private
-     * @type {string}
-     */
-    this.basePath = basePath || '';
-};
-
-_.extend(PreLoader.prototype, /** @lends PreLoader# */{
-
-    /**
-     * @private
-     * @type {string}
-     */
-    configUrl: 'client/cfg/pre-load.json',
-
-    /**
-     * Load.
-     *
-     * @param {Function} callback A callback.
-     * @param {module:app} app An application instance.
-     */
-    load: function (callback, app) {
-        let bar = $(
-            '<div class="progress pre-loading">' +
-            '<div class="progress-bar" id="loading-progress-bar" role="progressbar" ' +
-            'aria-valuenow="0" style="width: 0"></div></div>'
-        ).prependTo('body');
-
-        bar = bar.children();
-
-        bar.css({
-            'transition': 'width .1s linear',
-            '-webkit-transition': 'width .1s linear'
-        });
-
-        let count = 0;
-        let countLoaded = 0;
-        let classesLoaded = 0;
-        let layoutTypesLoaded = 0;
-        let templatesLoaded = 0;
-
-        let updateBar = () => {
-            let percents = countLoaded / count * 100;
-
-            bar.css('width', percents + '%').attr('aria-valuenow', percents);
-        };
-
-        let checkIfReady = () => {
-            if (countLoaded >= count) {
-                clearInterval(timer);
-                callback.call(app, app);
-            }
-        };
-
-        let timer = setInterval(checkIfReady, 100);
-
-        let load = (data) => {
-            data.classes = data.classes || [];
-            data.templates = data.templates || [];
-            data.layoutTypes = data.layoutTypes || [];
-
-            let d = [];
-
-            data.classes.forEach(item => {
-                if (item !== 'views/fields/enum') {
-                    d.push(item); // TODO remove this hack
-                }
-            });
-
-            data.classes = d;
-
-            count = data.templates.length + data.layoutTypes.length+ data.classes.length;
-
-            let loadTemplates = () => {
-                data.templates.forEach(name =>  {
-                    this.viewFactory._loader.load('template', name, () => {
-                        templatesLoaded++;
-                        countLoaded++;
-
-                        updateBar();
-                    });
-                });
-            };
-
-            let loadLayoutTypes = () => {
-                data.layoutTypes.forEach(name => {
-                    this.viewFactory._loader.load('layoutTemplate', name, () => {
-                        layoutTypesLoaded++;
-                        countLoaded++;
-
-                        updateBar();
-                    });
-                });
-            };
-
-            let loadClasses = () => {
-                data.classes.forEach(name => {
-                    Espo.loader.require(name, () => {
-                        classesLoaded++;
-                        countLoaded++;
-
-                        updateBar();
-                    });
-                });
-            };
-
-            loadTemplates();
-            loadLayoutTypes();
-            loadClasses();
-        };
-
-        Espo.Ajax
-            .getRequest(this.basePath + this.configUrl, null, {
-                dataType: 'json',
-                local: true,
-            })
-            .then(data => load(data));
-    }
-});
-
-export default PreLoader;
diff --git a/frontend/bundle-config.json b/frontend/bundle-config.json
index 56750593f5..d62c57d809 100644
--- a/frontend/bundle-config.json
+++ b/frontend/bundle-config.json
@@ -18,8 +18,7 @@
             ],
             "ignoreFiles": [
                 "src/namespace.js",
-                "src/loader.js",
-                "src/pre-loader.js"
+                "src/loader.js"
             ],
             "patterns": [
                 "src/*.js",
@@ -122,8 +121,7 @@
             ],
             "ignoreFiles": [
                 "src/namespace.js",
-                "src/loader.js",
-                "src/pre-loader.js"
+                "src/loader.js"
             ],
             "noDuplicates": true
         }