diff --git a/src/config/tags.ts b/src/config/tags.ts
index 2065e88..70bd295 100644
--- a/src/config/tags.ts
+++ b/src/config/tags.ts
@@ -1,18 +1,24 @@
+/**
+ * Enum-like object with categories used by the Philomena, available for calling in the code. Values are technical
+ * names of these categories.
+ */
+export const CategoriesEnum = {
+  Rating: 'rating',
+  Spoiler: 'spoiler',
+  Origin: 'origin',
+  OC: 'oc',
+  Error: 'error',
+  Character: 'character',
+  ContentOfficial: 'content-official',
+  ContentFanmade: 'content-fanmade',
+  Species: 'species',
+  BodyType: 'body-type',
+}
+
 /**
  * List of categories defined by the sites.
  */
-export const categories: string[] = [
-  'rating',
-  'spoiler',
-  'origin',
-  'oc',
-  'error',
-  'character',
-  'content-official',
-  'content-fanmade',
-  'species',
-  'body-type',
-];
+export const categories: string[] = Object.values(CategoriesEnum);
 
 /**
  * Mapping of namespaces to their respective categories. These namespaces are automatically assigned to them, so we can
@@ -23,21 +29,21 @@ export const categories: string[] = [
  * @see https://github.com/philomena-dev/philomena/blob/6086757b654da8792ae52adb2a2f501ea6c30d12/lib/philomena/tags/tag.ex#L33-L45
  */
 export const namespaceCategories: Map<string, string> = new Map([
-  ['artist', 'origin'],
-  ['art pack', 'content-fanmade'],
-  ['colorist', 'origin'],
-  ['comic', 'content-fanmade'],
-  ['editor', 'origin'],
-  ['fanfic', 'content-fanmade'],
-  ['oc', 'oc'],
-  ['photographer', 'origin'],
-  ['series', 'content-fanmade'],
-  ['spoiler', 'spoiler'],
-  ['video', 'content-fanmade'],
-  ...(__CURRENT_SITE__ === 'tantabus' ? <const> [
-    ["prompter", "origin"],
-    ["creator", "origin"],
-    ["generator", "origin"]
+  ['artist', CategoriesEnum.Origin],
+  ['art pack', CategoriesEnum.ContentFanmade],
+  ['colorist', CategoriesEnum.Origin],
+  ['comic', CategoriesEnum.ContentFanmade],
+  ['editor', CategoriesEnum.Origin],
+  ['fanfic', CategoriesEnum.ContentFanmade],
+  ['oc', CategoriesEnum.OC],
+  ['photographer', CategoriesEnum.Origin],
+  ['series', CategoriesEnum.ContentFanmade],
+  ['spoiler', CategoriesEnum.Spoiler],
+  ['video', CategoriesEnum.ContentFanmade],
+  ...(__CURRENT_SITE__ === 'tantabus' ? <const>[
+    ["prompter", CategoriesEnum.Origin],
+    ["creator", CategoriesEnum.Origin],
+    ["generator", CategoriesEnum.Origin]
   ] : [])
 ]);
 
diff --git a/src/content/components/events/comms.ts b/src/content/components/events/comms.ts
index e5ba62a..643cae2 100644
--- a/src/content/components/events/comms.ts
+++ b/src/content/components/events/comms.ts
@@ -5,6 +5,7 @@ import type { BooruEventsMap } from "$content/components/events/booru-events";
 import type { TagsFormEventsMap } from "$content/components/events/tags-form-events";
 import type { TagDropdownEvents } from "$content/components/events/tag-dropdown-events";
 import type { PresetBlockEventsMap } from "$content/components/events/preset-block-events";
+import type { TagsListTogglerEventsMap } from "$content/components/events/tags-list-toggler-events";
 
 type EventsMapping =
   TaggingProfilePopupEventsMap
@@ -12,7 +13,8 @@ type EventsMapping =
   & BooruEventsMap
   & TagsFormEventsMap
   & TagDropdownEvents
-  & PresetBlockEventsMap;
+  & PresetBlockEventsMap
+  & TagsListTogglerEventsMap;
 
 type EventCallback<EventDetails> = (event: CustomEvent<EventDetails>) => void;
 export type UnsubscribeFunction = () => void;
diff --git a/src/content/components/events/tags-list-toggler-events.ts b/src/content/components/events/tags-list-toggler-events.ts
new file mode 100644
index 0000000..824fca1
--- /dev/null
+++ b/src/content/components/events/tags-list-toggler-events.ts
@@ -0,0 +1,5 @@
+export const EVENT_TAG_TOGGLED = 'tag-toggled';
+
+export interface TagsListTogglerEventsMap {
+  [EVENT_TAG_TOGGLED]: [string, boolean];
+}
diff --git a/src/content/components/extension/profiles/TaggingProfilePopup.ts b/src/content/components/extension/profiles/TaggingProfilePopup.ts
index 0b912cd..ac32c78 100644
--- a/src/content/components/extension/profiles/TaggingProfilePopup.ts
+++ b/src/content/components/extension/profiles/TaggingProfilePopup.ts
@@ -4,31 +4,21 @@ import { BaseComponent } from "$content/components/base/BaseComponent";
 import { getComponent } from "$content/components/base/component-utils";
 import ScrapedAPI from "$lib/philomena/scraping/ScrapedAPI";
 import { tagsBlacklist } from "$config/tags";
-import { emitterAt } from "$content/components/events/comms";
+import { emitterAt, on } from "$content/components/events/comms";
 import {
   EVENT_ACTIVE_PROFILE_CHANGED,
   EVENT_PROFILE_POPUP_STATE_CHANGED,
   EVENT_TAGS_UPDATED
 } from "$content/components/events/tagging-profile-popup-events";
 import type { MediaBoxTools } from "$content/components/extension/MediaBoxTools";
-import { resolveTagCategoryFromTagName } from "$lib/philomena/tag-utils";
+import TagsListToggler, { BlackListedTagsEncounteredError } from "$content/components/extension/profiles/TagsListToggler";
+import { EVENT_TAG_TOGGLED } from "$content/components/events/tags-list-toggler-events";
 
-class BlackListedTagsEncounteredError extends Error {
-  constructor(tagName: string) {
-    super(`This tag is blacklisted and prevents submission: ${tagName}`, {
-      cause: tagName
-    });
-  }
-}
 
 export class TaggingProfilePopup extends BaseComponent {
-  #tagsListElement: HTMLElement = document.createElement('div');
-  #tagsList: HTMLElement[] = [];
-  #suggestedInvalidTags: Map<string, HTMLElement> = new Map();
+  #tagsListToggler = TagsListToggler.create();
   #activeProfile: TaggingProfile | null = null;
   #mediaBoxTools: MediaBoxTools | null = null;
-  #tagsToRemove: Set<string> = new Set();
-  #tagsToAdd: Set<string> = new Set();
   #isPlanningToSubmit: boolean = false;
   #isSubmitting: boolean = false;
   #tagsSubmissionTimer: Timeout | null = null;
@@ -41,11 +31,8 @@ export class TaggingProfilePopup extends BaseComponent {
     this.container.innerHTML = '';
     this.container.classList.add('maintenance-popup');
 
-    this.#tagsListElement.classList.add('tags-list');
-
-    this.container.append(
-      this.#tagsListElement,
-    );
+    this.#tagsListToggler.initialize();
+    this.container.append(this.#tagsListToggler.container);
   }
 
   /**
@@ -67,7 +54,7 @@ export class TaggingProfilePopup extends BaseComponent {
     this.#mediaBoxTools = mediaBoxTools;
 
     TaggingProfilePopup.#watchActiveProfile(this.#onActiveProfileChanged.bind(this));
-    this.#tagsListElement.addEventListener('click', this.#handleTagClick.bind(this));
+    on(this.#tagsListToggler, EVENT_TAG_TOGGLED, this.#onTagToggled.bind(this));
 
     const mediaBox = this.#mediaBoxTools.mediaBox;
 
@@ -82,101 +69,30 @@ export class TaggingProfilePopup extends BaseComponent {
   #onActiveProfileChanged(activeProfile: TaggingProfile | null) {
     this.#activeProfile = activeProfile;
     this.container.classList.toggle('is-active', activeProfile !== null);
-    this.#refreshTagsList();
+
+    this.#refreshTagsToggler();
 
     this.#emitter.emit(EVENT_ACTIVE_PROFILE_CHANGED, activeProfile);
   }
 
-  #refreshTagsList() {
+  #refreshTagsToggler() {
     if (!this.#mediaBoxTools?.mediaBox) {
       return;
     }
 
     const activeProfileTagsList: string[] = this.#activeProfile?.settings.tags || [];
+    const currentPostTags = new Set(this.#mediaBoxTools.mediaBox.tagsAndAliases?.keys() || []);
 
-    for (const tagElement of this.#tagsList) {
-      tagElement.remove();
-    }
-
-    for (const tagElement of this.#suggestedInvalidTags.values()) {
-      tagElement.remove();
-    }
-
-    this.#tagsList = new Array(activeProfileTagsList.length);
-    this.#suggestedInvalidTags.clear();
-
-    const currentPostTags = this.#mediaBoxTools.mediaBox.tagsAndAliases;
-
-    activeProfileTagsList
-      .sort((a, b) => a.localeCompare(b))
-      .forEach((tagName, index) => {
-        const tagElement = TaggingProfilePopup.#buildTagElement(tagName);
-        this.#tagsList[index] = tagElement;
-        this.#tagsListElement.appendChild(tagElement);
-
-        const isPresent = currentPostTags?.has(tagName);
-
-        tagElement.classList.toggle('is-present', isPresent);
-        tagElement.classList.toggle('is-missing', !isPresent);
-        tagElement.classList.toggle('is-aliased', isPresent && currentPostTags?.get(tagName) !== tagName);
-
-        // Just to prevent duplication, we need to include this tag to the map of suggested invalid tags
-        if (tagsBlacklist.includes(tagName)) {
-          TaggingProfilePopup.#markTagElementWithCategory(tagElement, 'error');
-          this.#suggestedInvalidTags.set(tagName, tagElement);
-        } else {
-          TaggingProfilePopup.#markTagElementWithCategory(
-            tagElement,
-            resolveTagCategoryFromTagName(tagName) ?? '',
-          );
-        }
-      });
+    this.#tagsListToggler.replaceTags(activeProfileTagsList, currentPostTags);
   }
 
   /**
    * Detect and process clicks made directly to the tags.
    */
-  #handleTagClick(event: MouseEvent) {
-    const targetObject = event.target;
+  #onTagToggled() {
+    const hasPendingChanges = this.#tagsListToggler.hasChanges;
 
-
-    if (!targetObject || !(targetObject instanceof HTMLElement)) {
-      return;
-    }
-
-    let tagElement: HTMLElement | null = targetObject;
-
-    if (!tagElement.classList.contains('tag')) {
-      tagElement = tagElement.closest<HTMLElement>('.tag');
-    }
-
-    if (!tagElement?.dataset.name) {
-      return;
-    }
-
-    const tagName = tagElement.dataset.name;
-
-    if (tagElement.classList.contains('is-present')) {
-      const isToBeRemoved = tagElement.classList.toggle('is-removed');
-
-      if (isToBeRemoved) {
-        this.#tagsToRemove.add(tagName);
-      } else {
-        this.#tagsToRemove.delete(tagName);
-      }
-    }
-
-    if (tagElement.classList.contains('is-missing')) {
-      const isToBeAdded = tagElement.classList.toggle('is-added');
-
-      if (isToBeAdded) {
-        this.#tagsToAdd.add(tagName);
-      } else {
-        this.#tagsToAdd.delete(tagName);
-      }
-    }
-
-    if (this.#tagsToAdd.size || this.#tagsToRemove.size) {
+    if (hasPendingChanges) {
       // Notify only once, when first planning to submit
       if (!this.#isPlanningToSubmit) {
         TaggingProfilePopup.#notifyAboutPendingSubmission(true);
@@ -188,7 +104,7 @@ export class TaggingProfilePopup extends BaseComponent {
 
     // Whenever user undoes the change they wanted to do in the popup, it's better to not send the submission and just
     // do nothing.
-    if (!this.#tagsToAdd.size && !this.#tagsToRemove.size && this.#isPlanningToSubmit) {
+    if (!hasPendingChanges && this.#isPlanningToSubmit) {
       this.#isPlanningToSubmit = false;
       this.#emitter.emit(EVENT_PROFILE_POPUP_STATE_CHANGED, 'ready');
       TaggingProfilePopup.#notifyAboutPendingSubmission(false);
@@ -232,29 +148,7 @@ export class TaggingProfilePopup extends BaseComponent {
     try {
       maybeTagsAndAliasesAfterUpdate = await TaggingProfilePopup.#scrapedAPI.updateImageTags(
         this.#mediaBoxTools.mediaBox.imageId,
-        tagsList => {
-          for (let tagName of this.#tagsToRemove) {
-            tagsList.delete(tagName);
-          }
-
-          for (let tagName of this.#tagsToAdd) {
-            tagsList.add(tagName);
-          }
-
-          if (shouldAutoRemove) {
-            for (let tagName of tagsBlacklist) {
-              tagsList.delete(tagName);
-            }
-          } else {
-            for (let tagName of tagsList) {
-              if (tagsBlacklist.includes(tagName)) {
-                throw new BlackListedTagsEncounteredError(tagName);
-              }
-            }
-          }
-
-          return tagsList;
-        }
+        this.#tagsListToggler.createTagsUpdater(shouldAutoRemove),
       );
     } catch (e) {
       if (e instanceof BlackListedTagsEncounteredError) {
@@ -277,10 +171,7 @@ export class TaggingProfilePopup extends BaseComponent {
 
     this.#emitter.emit(EVENT_PROFILE_POPUP_STATE_CHANGED, 'complete');
 
-    this.#tagsToAdd.clear();
-    this.#tagsToRemove.clear();
-
-    this.#refreshTagsList();
+    this.#refreshTagsToggler();
     TaggingProfilePopup.#notifyAboutPendingSubmission(false);
 
     this.#isSubmitting = false;
@@ -291,37 +182,13 @@ export class TaggingProfilePopup extends BaseComponent {
       return;
     }
 
-    const tagsAndAliases = this.#mediaBoxTools.mediaBox.tagsAndAliases;
+    const activeTags = new Set(this.#mediaBoxTools.mediaBox.tagsAndAliases?.keys() || []);
 
-    if (!tagsAndAliases) {
+    if (!activeTags.size) {
       return;
     }
 
-    const firstTagInList = this.#tagsList[0];
-
-    for (let tagName of tagsBlacklist) {
-      if (tagsAndAliases.has(tagName)) {
-        if (this.#suggestedInvalidTags.has(tagName)) {
-          continue;
-        }
-
-        const tagElement = TaggingProfilePopup.#buildTagElement(tagName);
-        TaggingProfilePopup.#markTagElementWithCategory(tagElement, 'error');
-        tagElement.classList.add('is-present');
-
-        this.#suggestedInvalidTags.set(tagName, tagElement);
-
-        if (firstTagInList && firstTagInList.isConnected) {
-          this.#tagsListElement.insertBefore(tagElement, firstTagInList);
-        } else {
-          this.#tagsListElement.appendChild(tagElement);
-        }
-      }
-    }
-  }
-
-  get isActive() {
-    return this.container.classList.contains('is-active');
+    this.#tagsListToggler.prependTags(tagsBlacklist, activeTags);
   }
 
   static create(): HTMLElement {
@@ -332,24 +199,6 @@ export class TaggingProfilePopup extends BaseComponent {
     return container;
   }
 
-  static #buildTagElement(tagName: string): HTMLElement {
-    const tagElement = document.createElement('span');
-    tagElement.classList.add('tag');
-    tagElement.innerText = tagName;
-    tagElement.dataset.name = tagName;
-
-    return tagElement;
-  }
-
-  /**
-   * Mark the tag element with specified category.
-   * @param tagElement Element to mark.
-   * @param category Code name of category to mark.
-   */
-  static #markTagElementWithCategory(tagElement: HTMLElement, category: string) {
-    tagElement.dataset.tagCategory = category;
-    tagElement.setAttribute('data-tag-category', category);
-  }
 
   /**
    * Controller with maintenance settings.
@@ -433,5 +282,5 @@ export class TaggingProfilePopup extends BaseComponent {
   /**
    * Amount of pending submissions or NULL if logic was not yet initialized.
    */
-  static #pendingSubmissionCount: number|null = null;
+  static #pendingSubmissionCount: number | null = null;
 }
diff --git a/src/content/components/extension/profiles/TagsListToggler.ts b/src/content/components/extension/profiles/TagsListToggler.ts
new file mode 100644
index 0000000..e9b8c37
--- /dev/null
+++ b/src/content/components/extension/profiles/TagsListToggler.ts
@@ -0,0 +1,195 @@
+import { BaseComponent } from "$content/components/base/BaseComponent";
+import { CategoriesEnum, tagsBlacklist } from "$config/tags";
+import { resolveTagCategoryFromTagName } from "$lib/philomena/tag-utils";
+import { EVENT_TAG_TOGGLED } from "$content/components/events/tags-list-toggler-events";
+import { emit } from "$content/components/events/comms";
+import type { TagsUpdaterFunction } from "$lib/philomena/scraping/ScrapedAPI";
+
+export default class TagsListToggler extends BaseComponent {
+  #tagsList: HTMLElement[] = [];
+  #invalidTagsList: Map<string, HTMLElement> = new Map();
+  #tagsToAdd: Set<string> = new Set();
+  #tagsToRemove: Set<string> = new Set();
+
+  protected build() {
+    this.container.classList.add('tags-list');
+  }
+
+  protected init() {
+    this.container.addEventListener('click', this.#handleTagClick.bind(this));
+  }
+
+  get hasChanges(): boolean {
+    return (this.#tagsToAdd.size + this.#tagsToRemove.size) > 0;
+  }
+
+  replaceTags(tags: string[], activeTags: Set<string>) {
+    for (const tagElement of this.#tagsList) {
+      tagElement.remove();
+    }
+
+    for (const tagElement of this.#invalidTagsList.values()) {
+      tagElement.remove();
+    }
+
+    this.#tagsList = [];
+    this.#invalidTagsList = new Map();
+
+    this.#renderAndInsertTags(tags, activeTags);
+  }
+
+  prependTags(tags: string[], activeTags: Set<string>) {
+    this.#renderAndInsertTags(tags, activeTags, true);
+  }
+
+  #renderAndInsertTags(toggleableTags: string[], activeTags: Set<string>, shouldPrepend: boolean = false) {
+    toggleableTags.sort((a, b) => a.localeCompare(b));
+
+    let lastInserted: HTMLElement|null = null;
+
+    for (let tagIndex = 0; tagIndex < toggleableTags.length; tagIndex++) {
+      const tagName = toggleableTags[tagIndex];
+      const tagElement = TagsListToggler.#buildTagElement(tagName);
+
+      this.#tagsList.push(tagElement);
+
+      const isPresent = activeTags.has(tagName);
+
+      tagElement.classList.toggle(TagsListToggler.#missingClass, !isPresent);
+      tagElement.classList.toggle(TagsListToggler.#containsClass, isPresent);
+
+      const tagCategory = tagsBlacklist.includes(tagName) && CategoriesEnum.Error
+        || resolveTagCategoryFromTagName(tagName)
+        || '';
+
+      TagsListToggler.#markTagElementWithCategory(tagElement, tagCategory);
+
+      if (tagCategory === CategoriesEnum.Error) {
+        this.#invalidTagsList.set(tagName, tagElement);
+      }
+
+      if (shouldPrepend) {
+        if (lastInserted) {
+          lastInserted.after(tagElement);
+        } else {
+          this.container.prepend(tagElement);
+        }
+
+        lastInserted = tagElement;
+      } else {
+        this.container.append(tagElement);
+      }
+    }
+  }
+
+  createTagsUpdater(shouldAutoRemoveInvalid: boolean): TagsUpdaterFunction {
+    return tagsList => {
+      for (let tagName of this.#tagsToRemove) {
+        tagsList.delete(tagName);
+      }
+
+      for (let tagName of this.#tagsToAdd) {
+        tagsList.add(tagName);
+      }
+
+      if (shouldAutoRemoveInvalid) {
+        for (let tagName of tagsBlacklist) {
+          tagsList.delete(tagName);
+        }
+      } else {
+        for (let tagName of tagsList) {
+          if (tagsBlacklist.includes(tagName)) {
+            throw new BlackListedTagsEncounteredError(tagName);
+          }
+        }
+      }
+
+      return tagsList;
+    }
+  }
+
+  #handleTagClick(event: MouseEvent) {
+    const targetObject = event.target;
+
+
+    if (!targetObject || !(targetObject instanceof HTMLElement)) {
+      return;
+    }
+
+    let tagElement: HTMLElement | null = targetObject;
+
+    if (!tagElement.classList.contains('tag')) {
+      tagElement = tagElement.closest<HTMLElement>('.tag');
+    }
+
+    if (!tagElement?.dataset.name) {
+      return;
+    }
+
+    const tagName = tagElement.dataset.name;
+
+    let willBeActive = false;
+
+    if (tagElement.classList.contains(TagsListToggler.#containsClass)) {
+      const isToBeRemoved = tagElement.classList.toggle(TagsListToggler.#removedClass);
+      willBeActive = !isToBeRemoved;
+
+      if (isToBeRemoved) {
+        this.#tagsToRemove.add(tagName);
+      } else {
+        this.#tagsToRemove.delete(tagName);
+      }
+    }
+
+    if (tagElement.classList.contains(TagsListToggler.#missingClass)) {
+      const isToBeAdded = tagElement.classList.toggle(TagsListToggler.#addedClass);
+      willBeActive = isToBeAdded;
+
+      if (isToBeAdded) {
+        this.#tagsToAdd.add(tagName);
+      } else {
+        this.#tagsToAdd.delete(tagName);
+      }
+    }
+
+    emit(this.container, EVENT_TAG_TOGGLED, [tagName, willBeActive]);
+  }
+
+  static #buildTagElement(tagName: string): HTMLElement {
+    const tagElement = document.createElement('span');
+    tagElement.classList.add('tag');
+    tagElement.innerText = tagName;
+    tagElement.dataset.name = tagName;
+
+    return tagElement;
+  }
+
+  /**
+   * Mark the tag element with specified category.
+   * @param tagElement Element to mark.
+   * @param category Code name of category to mark.
+   */
+  static #markTagElementWithCategory(tagElement: HTMLElement, category: string) {
+    tagElement.dataset.tagCategory = category;
+    tagElement.setAttribute('data-tag-category', category);
+  }
+
+  static create(): TagsListToggler {
+    const tagsListContainer = document.createElement('div');
+    return new TagsListToggler(tagsListContainer);
+  }
+
+  static #containsClass = 'is-present';
+  static #missingClass = 'is-missing';
+
+  static #addedClass = 'is-added';
+  static #removedClass = 'is-removed';
+}
+
+export class BlackListedTagsEncounteredError extends Error {
+  constructor(tagName: string) {
+    super(`This tag is blacklisted and prevents submission: ${tagName}`, {
+      cause: tagName
+    });
+  }
+}
diff --git a/src/lib/philomena/scraping/ScrapedAPI.ts b/src/lib/philomena/scraping/ScrapedAPI.ts
index 39cdf71..292b7ff 100644
--- a/src/lib/philomena/scraping/ScrapedAPI.ts
+++ b/src/lib/philomena/scraping/ScrapedAPI.ts
@@ -1,6 +1,6 @@
 import PostParser from "$lib/philomena/scraping/parsing/PostParser";
 
-type UpdaterFunction = (tags: Set<string>) => Set<string>;
+export type TagsUpdaterFunction = (tags: Set<string>) => Set<string>;
 
 export default class ScrapedAPI {
   /**
@@ -9,7 +9,7 @@ export default class ScrapedAPI {
    * @param callback Callback to call to change the content.
    * @return Updated tags and aliases list for updating internal cached state.
    */
-  async updateImageTags(imageId: number, callback: UpdaterFunction): Promise<Map<string, string> | null> {
+  async updateImageTags(imageId: number, callback: TagsUpdaterFunction): Promise<Map<string, string> | null> {
     const postParser = new PostParser(imageId);
     const formData = await postParser.resolveTagEditorFormData();
     const tagsFieldValue = formData.get(PostParser.tagsInputName);