diff --git a/app/Http/Controllers/CommentController.php b/app/Http/Controllers/CommentController.php
index 744c52a6..ea05c076 100644
--- a/app/Http/Controllers/CommentController.php
+++ b/app/Http/Controllers/CommentController.php
@@ -2,7 +2,7 @@
 
 namespace App\Http\Controllers;
 
-use App\Http\Requests\Comment\StoreCommentRequest;
+use App\Http\Requests\StoreCommentRequest;
 use App\Http\Resources\CommentResource;
 use App\Http\Resources\UserResource;
 use App\Services\CommentService;
diff --git a/app/Http/Controllers/ComputerScienceResourceController.php b/app/Http/Controllers/ComputerScienceResourceController.php
index 1cfdbba8..935c6ddf 100644
--- a/app/Http/Controllers/ComputerScienceResourceController.php
+++ b/app/Http/Controllers/ComputerScienceResourceController.php
@@ -3,7 +3,7 @@
 namespace App\Http\Controllers;
 
 use App\Events\TagFrequencyChanged;
-use App\Http\Requests\ComputerScienceResource\StoreResourceRequest;
+use App\Http\Requests\StoreResourceRequest;
 use App\Models\ComputerScienceResource;
 use App\Models\NewsPost;
 use App\Models\ResourceEdits;
diff --git a/app/Http/Controllers/ResourceEditsController.php b/app/Http/Controllers/ResourceEditsController.php
index 43b70f18..363b26bd 100644
--- a/app/Http/Controllers/ResourceEditsController.php
+++ b/app/Http/Controllers/ResourceEditsController.php
@@ -3,7 +3,7 @@
 namespace App\Http\Controllers;
 
 use App\Events\TagFrequencyChanged;
-use App\Http\Requests\ResourceEdit\StoreResourceEdit;
+use App\Http\Requests\StoreResourceEdit;
 use App\Models\ComputerScienceResource;
 use App\Models\ResourceEdits;
 use App\Services\DataNormalizationService;
diff --git a/app/Http/Controllers/ResourceReviewController.php b/app/Http/Controllers/ResourceReviewController.php
index ddf63396..ffb03c8f 100644
--- a/app/Http/Controllers/ResourceReviewController.php
+++ b/app/Http/Controllers/ResourceReviewController.php
@@ -2,7 +2,7 @@
 
 namespace App\Http\Controllers;
 
-use App\Http\Requests\ResourceReview\StoreResourceReview;
+use App\Http\Requests\StoreResourceReview;
 use App\Models\ComputerScienceResource;
 use App\Models\ResourceReview;
 use Illuminate\Support\Facades\Auth;
diff --git a/app/Http/Requests/Comment/StoreCommentRequest.php b/app/Http/Requests/StoreCommentRequest.php
similarity index 96%
rename from app/Http/Requests/Comment/StoreCommentRequest.php
rename to app/Http/Requests/StoreCommentRequest.php
index 57ba2c47..90e9e01b 100644
--- a/app/Http/Requests/Comment/StoreCommentRequest.php
+++ b/app/Http/Requests/StoreCommentRequest.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace App\Http\Requests\Comment;
+namespace App\Http\Requests;
 
 use App\Services\ModelResolverService;
 use Illuminate\Foundation\Http\FormRequest;
diff --git a/app/Http/Requests/ResourceEdit/StoreResourceEdit.php b/app/Http/Requests/StoreResourceEdit.php
similarity index 87%
rename from app/Http/Requests/ResourceEdit/StoreResourceEdit.php
rename to app/Http/Requests/StoreResourceEdit.php
index c612ba56..fb9a189a 100644
--- a/app/Http/Requests/ResourceEdit/StoreResourceEdit.php
+++ b/app/Http/Requests/StoreResourceEdit.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace App\Http\Requests\ResourceEdit;
+namespace App\Http\Requests;
 
 use Illuminate\Foundation\Http\FormRequest;
 use Illuminate\Support\Facades\Auth;
@@ -35,13 +35,13 @@ public function rules(): array
             'proposed_changes.page_url' => ['nullable', 'string', 'url:http,https', 'max:255'],
             'proposed_changes.difficulty' => ['nullable', 'string', Rule::in(config('computerScienceResource.difficulties'))],
             'proposed_changes.pricing' => ['nullable', 'string', Rule::in(config('computerScienceResource.pricings'))],
-            'proposed_changes.topic_tags' => ['nullable', 'array', 'min:2'],
-            'proposed_changes.topic_tags.*' => ['required', 'distinct', 'string', 'max:50'],
             'proposed_changes.image_file' => ['nullable', 'image', 'max:500'], // 500 kilobytes
+            'proposed_changes.topic_tags' => ['nullable', 'array', 'min:2'],
+            'proposed_changes.topic_tags.*' => ['required', 'distinct', 'string', 'max:50', 'regex:'.config('computerScienceResource.tags_regex')],
             'proposed_changes.general_tags' => ['nullable', 'array'],
-            'proposed_changes.general_tags.*' => ['required', 'distinct', 'string', 'max:50'],
+            'proposed_changes.general_tags.*' => ['required', 'distinct', 'string', 'max:50', 'regex:'.config('computerScienceResource.tags_regex')],
             'proposed_changes.programming_language_tags' => ['nullable', 'array'],
-            'proposed_changes.programming_language_tags.*' => ['required', 'distinct', 'string', 'max:50'],
+            'proposed_changes.programming_language_tags.*' => ['required', 'distinct', 'string', 'max:50', 'regex:'.config('computerScienceResource.tags_regex')],
         ];
     }
 }
diff --git a/app/Http/Requests/ComputerScienceResource/StoreResourceRequest.php b/app/Http/Requests/StoreResourceRequest.php
similarity index 87%
rename from app/Http/Requests/ComputerScienceResource/StoreResourceRequest.php
rename to app/Http/Requests/StoreResourceRequest.php
index 699a1b05..0c2d35c5 100644
--- a/app/Http/Requests/ComputerScienceResource/StoreResourceRequest.php
+++ b/app/Http/Requests/StoreResourceRequest.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace App\Http\Requests\ComputerScienceResource;
+namespace App\Http\Requests;
 
 use Illuminate\Foundation\Http\FormRequest;
 use Illuminate\Support\Facades\Auth;
@@ -32,14 +32,14 @@ public function rules(): array
             'difficulty' => ['required', 'string', Rule::in(config('computerScienceResource.difficulties'))],
             'pricing' => ['required', 'string', Rule::in(config('computerScienceResource.pricings'))],
             'topic_tags' => ['required', 'array', 'min:2'],
-            'topic_tags.*' => ['required', 'distinct', 'string', 'max:50'],
+            'topic_tags.*' => ['required', 'distinct', 'string', 'max:50', 'regex:'.config('computerScienceResource.tags_regex')],
 
             // Optional, can just be omitted
             'image_file' => ['nullable', 'image', 'max:500'], // 500 kiloBytes
             'general_tags' => ['array'],
-            'general_tags.*' => ['required', 'distinct', 'string', 'max:50'],
+            'general_tags.*' => ['required', 'distinct', 'string', 'max:50', 'regex:'.config('computerScienceResource.tags_regex')],
             'programming_language_tags' => ['array'],
-            'programming_language_tags.*' => ['required', 'distinct', 'string', 'max:50'],
+            'programming_language_tags.*' => ['required', 'distinct', 'string', 'max:50', 'regex:'.config('computerScienceResource.tags_regex')],
         ];
     }
 }
diff --git a/app/Http/Requests/ResourceReview/StoreResourceReview.php b/app/Http/Requests/StoreResourceReview.php
similarity index 97%
rename from app/Http/Requests/ResourceReview/StoreResourceReview.php
rename to app/Http/Requests/StoreResourceReview.php
index aa141b58..6966a860 100644
--- a/app/Http/Requests/ResourceReview/StoreResourceReview.php
+++ b/app/Http/Requests/StoreResourceReview.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace App\Http\Requests\ResourceReview;
+namespace App\Http\Requests;
 
 use Illuminate\Foundation\Http\FormRequest;
 use Illuminate\Support\Facades\Auth;
diff --git a/config/computerScienceResource.php b/config/computerScienceResource.php
index 7041ae92..021298bf 100644
--- a/config/computerScienceResource.php
+++ b/config/computerScienceResource.php
@@ -4,4 +4,5 @@
     'platforms' => ['book', 'podcast', 'youtube_channel', 'blog', 'website', 'organization', 'service', 'bootcamp', 'newsletter', 'workshop', 'course', 'forum', 'mobile_app', 'desktop_app', 'magazine'],
     'difficulties' => ['any', 'beginner', 'industry_simple', 'industry_standard', 'industry_professional', 'academic'],
     'pricings' => ['free', 'paid', 'freemium', 'premium'],
+    'tags_regex' => '/^[a-z0-9-]+$/',
 ];
diff --git a/database/factories/ComputerScienceResourceFactory.php b/database/factories/ComputerScienceResourceFactory.php
index 6bd041f8..c992a03e 100644
--- a/database/factories/ComputerScienceResourceFactory.php
+++ b/database/factories/ComputerScienceResourceFactory.php
@@ -56,11 +56,30 @@ public function configure(): Factory
         return $this->afterCreating(function (ComputerScienceResource $resource) {
             $fakerTags = ['tag1', 'tag2', 'tag3', 'tag4', 'tag5', fake()->word(), fake()->word()];
 
-            $resource->topic_tags = $this->topicTags ?? fake()->randomElements($fakerTags, fake()->numberBetween(3, count($fakerTags)));
-            $resource->programming_language_tags = $this->programmingLanguageTags ?? fake()->randomElements($fakerTags);
-            $resource->general_tags = $this->generalTags ?? fake()->randomElements($fakerTags);
+            // Sanitize all tags before assigning
+            $topicTags = $this->topicTags ?? fake()->randomElements($fakerTags, fake()->numberBetween(3, count($fakerTags)));
+            $topicTags = array_map([$this, 'sanitizeTag'], $topicTags);
+
+            $programmingLanguageTags = $this->programmingLanguageTags ?? fake()->randomElements($fakerTags);
+            $programmingLanguageTags = array_map([$this, 'sanitizeTag'], $programmingLanguageTags);
+
+            $generalTags = $this->generalTags ?? fake()->randomElements($fakerTags);
+            $generalTags = array_map([$this, 'sanitizeTag'], $generalTags);
+
+            $resource->topic_tags = $topicTags;
+            $resource->programming_language_tags = $programmingLanguageTags;
+            $resource->general_tags = $generalTags;
 
             TagFrequencyChanged::dispatch(null, $resource->tagCounter());
         });
     }
+
+    private function sanitizeTag(string $tag): string
+    {
+        // Lowercase, replace spaces with -, remove invalid chars
+        $tag = strtolower(str_replace(' ', '-', $tag));
+
+        // Remove any character not a-z, 0-9, or hyphen
+        return preg_replace('/[^a-z0-9-]/', '', $tag);
+    }
 }
diff --git a/database/factories/ResourceEditsFactory.php b/database/factories/ResourceEditsFactory.php
index 7302e009..2687d964 100644
--- a/database/factories/ResourceEditsFactory.php
+++ b/database/factories/ResourceEditsFactory.php
@@ -32,7 +32,7 @@ public function definition(): array
             'platforms' => $this->faker->randomElements($platforms, rand(1, 3)),
             'difficulty' => $this->faker->randomElement($difficulties),
             'pricing' => $this->faker->randomElement($pricings),
-            'topic_tags' => ['data structures', 'algorithms'],
+            'topic_tags' => ['data-structures', 'algorithms'],
             'programming_language_tags' => ['python'],
             'general_tags' => ['interactive', 'challenging'],
         ];
diff --git a/resources/js/Components/Form/TagSelector.vue b/resources/js/Components/Form/TagSelector.vue
index a83fbd24..f05aabe5 100644
--- a/resources/js/Components/Form/TagSelector.vue
+++ b/resources/js/Components/Form/TagSelector.vue
@@ -25,10 +25,27 @@ watch(
     { immediate: true }
 );
 
+function sanitizeTag(tag) {
+    // Remove trailing spaces and lowercase
+    let transformedTag = tag.trim().toLowerCase();
+
+    // Apply rules from config('computerScienceResources.tags_rules')
+    // Transform the tag to lowercase and replace spaces with hyphens
+    transformedTag = transformedTag.replace(/\s+/g, "-");
+    // Remove any characters that are not lowercase letters or hyphens
+    // Remove any characters that are not lowercase letters, numbers, or hyphens
+    transformedTag = transformedTag.replace(/[^a-z0-9-]/g, "");
+    return transformedTag;
+}
+
 const addTag = (tag) => {
-    if (tag && !selectedTags.value.includes(tag)) {
-        selectedTags.value.push(tag);
-        model.value = [...selectedTags.value];
+    if (tag) {
+        let transformedTag = sanitizeTag(tag);
+
+        if (!selectedTags.value.includes(transformedTag)) {
+            selectedTags.value.push(transformedTag);
+            model.value = [...selectedTags.value];
+        }
     }
 };
 
@@ -49,8 +66,8 @@ const handleSelect = (event) => {
 
 const handleKeydown = (event) => {
     if (event.key === "Enter") {
-        if (searchValue.value.trim()) {
-            addTag(searchValue.value.trim().toLowerCase());
+        if (searchValue.value) {
+            addTag(searchValue.value);
             // Clear the input after adding via Enter
             nextTick(() => {
                 searchValue.value = "";
diff --git a/tests/Feature/ResourceEditsTest.php b/tests/Feature/ResourceEditsTest.php
index d0db1e47..391f8030 100644
--- a/tests/Feature/ResourceEditsTest.php
+++ b/tests/Feature/ResourceEditsTest.php
@@ -161,9 +161,9 @@ public function test_merged_edit_reflects_changes_on_original_resource(): void
                 'difficulty' => fake()->randomElement(config('computerScienceResource.difficulties')),
                 'platforms' => fake()->randomElements(config('computerScienceResource.platforms'), fake()->numberBetween(1, 3)),
                 'pricing' => fake()->randomElement(config('computerScienceResource.pricings')),
-                'topic_tags' => ["{$i}_a", "{$i}_b", "{$i}_c"],
-                'programming_language_tags' => ["{$i}_a", "{$i}_b", "{$i}_c"],
-                'general_tags' => ["{$i}_a", "{$i}_b", "{$i}_c"],
+                'topic_tags' => ["$i-a", "$i-b", "$i-c"],
+                'programming_language_tags' => ["$i-a", "$i-b", "$i-c"],
+                'general_tags' => ["$i-a", "$i-b", "$i-c"],
             ];
 
             $this->makeAndApplyResourceEdits($resource->id, $changes);
diff --git a/tests/RequestFactories/ResourceEdit/StoreResourceEditFactory.php b/tests/RequestFactories/ResourceEdit/StoreResourceEditFactory.php
index 13f3c592..81776f05 100644
--- a/tests/RequestFactories/ResourceEdit/StoreResourceEditFactory.php
+++ b/tests/RequestFactories/ResourceEdit/StoreResourceEditFactory.php
@@ -12,11 +12,23 @@ public function definition(): array
         $difficulties = config('computerScienceResource.difficulties');
         $pricings = config('computerScienceResource.pricings');
 
-        // Ensure at least 3 unique topic tags
+        // Ensure at least 3 unique topic tags, all matching the regex
         do {
             $topicTags = array_unique($this->faker->words(mt_rand(4, 9)));
+            $topicTags = array_map([$this, 'sanitizeTag'], $topicTags);
         } while (count($topicTags) < 3);
 
+        // Ensure programming_language_tags and general_tags are sanitized and valid
+        do {
+            $programmingLanguageTags = array_unique($this->faker->words(mt_rand(1, 3)));
+            $programmingLanguageTags = array_map([$this, 'sanitizeTag'], $programmingLanguageTags);
+        } while (count($programmingLanguageTags) < 1);
+
+        do {
+            $generalTags = array_unique($this->faker->words(mt_rand(1, 3)));
+            $generalTags = array_map([$this, 'sanitizeTag'], $generalTags);
+        } while (count($generalTags) < 1);
+
         $possibleChanges = [
             'name' => $this->faker->words(mt_rand(2, 4), true),
             'description' => $this->faker->paragraphs(2, true),
@@ -26,8 +38,8 @@ public function definition(): array
             'difficulty' => $this->faker->randomElement($difficulties),
             'pricing' => $this->faker->randomElement($pricings),
             'topic_tags' => array_values($topicTags),
-            'programming_language_tags' => array_unique($this->faker->words(mt_rand(1, 3))),
-            'general_tags' => array_unique($this->faker->words(mt_rand(1, 3))),
+            'programming_language_tags' => array_values($programmingLanguageTags),
+            'general_tags' => array_values($generalTags),
         ];
 
         $proposedKeys = $this->faker->randomElements(
@@ -46,4 +58,12 @@ public function definition(): array
             'proposed_changes' => $proposedChanges,
         ];
     }
+
+    private function sanitizeTag(string $tag): string
+    {
+        // Replace spaces with hyphens, lowercase, and remove invalid characters
+        $tag = strtolower(str_replace(' ', '-', $tag));
+
+        return preg_replace('/[^a-z0-9-]/', '', $tag);
+    }
 }