diff --git a/public/scripts/utils.js b/public/scripts/utils.js
index f3db706e6..2484e0e8d 100644
--- a/public/scripts/utils.js
+++ b/public/scripts/utils.js
@@ -1469,23 +1469,47 @@ export function flashHighlight(element, timespan = 2000) {
     setTimeout(() => element.removeClass('flash animated'), timespan);
 }
 
+/**
+ * A common base function for case-insensitive and accent-insensitive string comparisons.
+ *
+ * @param {string} a - The first string to compare.
+ * @param {string} b - The second string to compare.
+ * @param {(a:string,b:string)=>boolean} comparisonFunction - The function to use for the comparison.
+ * @returns {*} - The result of the comparison.
+ */
+export function compareIgnoreCaseAndAccents(a, b, comparisonFunction) {
+    if (!a || !b) return comparisonFunction(a, b); // Return the comparison result if either string is empty
+
+    // Normalize and remove diacritics, then convert to lower case
+    const normalizedA = a.normalize('NFD').replace(/[\u0300-\u036f]/g, '').toLowerCase();
+    const normalizedB = b.normalize('NFD').replace(/[\u0300-\u036f]/g, '').toLowerCase();
+
+    // Check if the normalized strings are equal
+    return comparisonFunction(normalizedA, normalizedB);
+}
+
 /**
  * Performs a case-insensitive and accent-insensitive substring search.
  * This function normalizes the strings to remove diacritical marks and converts them to lowercase to ensure the search is insensitive to case and accents.
  *
- * @param {string} text - The text in which to search for the substring.
- * @param {string} searchTerm - The substring to search for in the text.
- * @returns {boolean} - Returns true if the searchTerm is found within the text, otherwise returns false.
+ * @param {string} text - The text in which to search for the substring
+ * @param {string} searchTerm - The substring to search for in the text
+ * @returns {boolean} true if the searchTerm is found within the text, otherwise returns false
  */
 export function includesIgnoreCaseAndAccents(text, searchTerm) {
-    if (!text || !searchTerm) return false; // Return false if either string is empty
+    return compareIgnoreCaseAndAccents(text, searchTerm, (a, b) => a?.includes(b) === true);
+}
 
-    // Normalize and remove diacritics, then convert to lower case
-    const normalizedText = text.normalize('NFD').replace(/[\u0300-\u036f]/g, '').toLowerCase();
-    const normalizedSearchTerm = searchTerm.normalize('NFD').replace(/[\u0300-\u036f]/g, '').toLowerCase();
-
-    // Check if the normalized text includes the normalized search term
-    return normalizedText.includes(normalizedSearchTerm);
+/**
+ * Performs a case-insensitive and accent-insensitive equality check.
+ * This function normalizes the strings to remove diacritical marks and converts them to lowercase to ensure the search is insensitive to case and accents.
+ *
+ * @param {string} a - The first string to compare
+ * @param {string} b - The second string to compare
+ * @returns {boolean} true if the strings are equal, otherwise returns false
+ */
+export function equalsIgnoreCaseAndAccents(a, b) {
+    return compareIgnoreCaseAndAccents(a, b, (a, b) => a === b);
 }
 
 /**
diff --git a/public/scripts/world-info.js b/public/scripts/world-info.js
index 723ea94c9..a553fffd8 100644
--- a/public/scripts/world-info.js
+++ b/public/scripts/world-info.js
@@ -1,5 +1,5 @@
 import { saveSettings, callPopup, substituteParams, getRequestHeaders, chat_metadata, this_chid, characters, saveCharacterDebounced, menu_type, eventSource, event_types, getExtensionPromptByName, saveMetadata, getCurrentChatId, extension_prompt_roles } from '../script.js';
-import { download, debounce, initScrollHeight, resetScrollHeight, parseJsonFile, extractDataFromPng, getFileBuffer, getCharaFilename, getSortableDelay, escapeRegex, PAGINATION_TEMPLATE, navigation_option, waitUntilCondition, isTrueBoolean, setValueByPath, flashHighlight, select2ModifyOptions, getSelect2OptionId, dynamicSelect2DataViaAjax, highlightRegex, select2ChoiceClickSubscribe, isFalseBoolean } from './utils.js';
+import { download, debounce, initScrollHeight, resetScrollHeight, parseJsonFile, extractDataFromPng, getFileBuffer, getCharaFilename, getSortableDelay, escapeRegex, PAGINATION_TEMPLATE, navigation_option, waitUntilCondition, isTrueBoolean, setValueByPath, flashHighlight, select2ModifyOptions, getSelect2OptionId, dynamicSelect2DataViaAjax, highlightRegex, select2ChoiceClickSubscribe, isFalseBoolean, equalsIgnoreCaseAndAccents } from './utils.js';
 import { extension_settings, getContext } from './extensions.js';
 import { NOTE_MODULE_NAME, metadata_keys, shouldWIAddPrompt } from './authors-note.js';
 import { isMobile } from './RossAscends-mods.js';
@@ -50,6 +50,7 @@ const WI_ENTRY_EDIT_TEMPLATE = $('#entry_edit_template .world_entry');
 
 let world_info = {};
 let selected_world_info = [];
+/** @type {string[]} */
 let world_names;
 let world_info_depth = 2;
 let world_info_min_activations = 0; // if > 0, will continue seeking chat until minimum world infos are activated
@@ -2544,9 +2545,15 @@ async function renameWorldInfo(name, data) {
     }
 }
 
+/**
+ * Deletes a world info with the given name
+ *
+ * @param {string} worldInfoName - The name of the world info to delete
+ * @returns {Promise<boolean>} A promise that resolves to true if the world info was successfully deleted, false otherwise
+ */
 async function deleteWorldInfo(worldInfoName) {
     if (!world_names.includes(worldInfoName)) {
-        return;
+        return false;
     }
 
     const response = await fetch('/api/worldinfo/delete', {
@@ -2555,24 +2562,28 @@ async function deleteWorldInfo(worldInfoName) {
         body: JSON.stringify({ name: worldInfoName }),
     });
 
-    if (response.ok) {
-        const existingWorldIndex = selected_world_info.findIndex((e) => e === worldInfoName);
-        if (existingWorldIndex !== -1) {
-            selected_world_info.splice(existingWorldIndex, 1);
-            saveSettingsDebounced();
-        }
+    if (!response.ok) {
+        return false;
+    }
 
-        await updateWorldInfoList();
-        $('#world_editor_select').trigger('change');
+    const existingWorldIndex = selected_world_info.findIndex((e) => e === worldInfoName);
+    if (existingWorldIndex !== -1) {
+        selected_world_info.splice(existingWorldIndex, 1);
+        saveSettingsDebounced();
+    }
 
-        if ($('#character_world').val() === worldInfoName) {
-            $('#character_world').val('').trigger('change');
-            setWorldInfoButtonClass(undefined, false);
-            if (menu_type != 'create') {
-                saveCharacterDebounced();
-            }
+    await updateWorldInfoList();
+    $('#world_editor_select').trigger('change');
+
+    if ($('#character_world').val() === worldInfoName) {
+        $('#character_world').val('').trigger('change');
+        setWorldInfoButtonClass(undefined, false);
+        if (menu_type != 'create') {
+            saveCharacterDebounced();
         }
     }
+
+    return true;
 }
 
 function getFreeWorldEntryUid(data) {
@@ -2604,11 +2615,35 @@ function getFreeWorldName() {
     return undefined;
 }
 
-async function createNewWorldInfo(worldInfoName) {
+/**
+ * Creates a new world info/lorebook with the given name.
+ * Checks if a world with the same name already exists, providing a warning or optionally a user confirmation dialog.
+ *
+ * @param {string} worldInfoName - The name of the new world info
+ * @param {Object} options - Optional parameters
+ * @param {boolean} [options.interactive=false] - Whether to show a confirmation dialog when overwriting an existing world
+ * @returns {Promise<boolean>} - True if the world info was successfully created, false otherwise
+ */
+async function createNewWorldInfo(worldInfoName, { interactive = false } = {}) {
     const worldInfoTemplate = { entries: {} };
 
     if (!worldInfoName) {
-        return;
+        return false;
+    }
+
+    const existingWorld = world_names.find(x => equalsIgnoreCaseAndAccents(x, worldInfoName));
+    if (existingWorld) {
+        const overwrite = interactive ? await callPopup(`<h3>Creating New World Info</h3><p>A world with the same name already exists:<br />${existingWorld}</p>Do you want to overwrite it?`, 'confirm') : false;
+
+        if (!overwrite) {
+            toastr.warning(`World creation cancelled. A world with the same name already exists:<br />${existingWorld}`, 'Creating New World Info', { escapeHtml: false });
+            return false;
+        }
+
+        toastr.info(`Overwriting Existing World Info:<br />${existingWorld}`, 'Creating New World Info', { escapeHtml: false });
+
+        // Manually delete, as we want to overwrite. The name might be slightly different so file name would not be the same.
+        await deleteWorldInfo(existingWorld);
     }
 
     await saveWorldInfo(worldInfoName, worldInfoTemplate, true);
@@ -2620,6 +2655,8 @@ async function createNewWorldInfo(worldInfoName) {
     } else {
         hideWorldEditor();
     }
+
+    return true;
 }
 
 async function getCharacterLore() {
@@ -3644,7 +3681,7 @@ jQuery(() => {
         const finalName = await callPopup('<h3>Create a new World Info?</h3>Enter a name for the new file:', 'input', tempName);
 
         if (finalName) {
-            await createNewWorldInfo(finalName);
+            await createNewWorldInfo(finalName, { interactive: true });
         }
     });