diff --git a/lib/i18n/de.i18n.json b/lib/i18n/de.i18n.json
index fe58e8b0..95a95f2c 100644
--- a/lib/i18n/de.i18n.json
+++ b/lib/i18n/de.i18n.json
@@ -711,7 +711,13 @@
     "nvscalerDescription": "NVIDIA-Bildskalierung für schärferes Video",
     "qualityFast": "Schnell",
     "qualityHQ": "Hohe Qualität",
-    "mode": "Modus"
+    "mode": "Modus",
+    "importShader": "Import Shader",
+    "customShaderDescription": "Custom GLSL shader",
+    "shaderImported": "Shader imported",
+    "shaderImportFailed": "Failed to import shader",
+    "deleteShader": "Delete Shader",
+    "deleteShaderConfirm": "Delete \"${name}\"?"
   },
   "companionRemote": {
     "title": "Companion Remote",
diff --git a/lib/i18n/en.i18n.json b/lib/i18n/en.i18n.json
index b0a073c3..38ce294e 100644
--- a/lib/i18n/en.i18n.json
+++ b/lib/i18n/en.i18n.json
@@ -711,7 +711,13 @@
     "nvscalerDescription": "NVIDIA image scaling for sharper video",
     "qualityFast": "Fast",
     "qualityHQ": "High Quality",
-    "mode": "Mode"
+    "mode": "Mode",
+    "importShader": "Import Shader",
+    "customShaderDescription": "Custom GLSL shader",
+    "shaderImported": "Shader imported",
+    "shaderImportFailed": "Failed to import shader",
+    "deleteShader": "Delete Shader",
+    "deleteShaderConfirm": "Delete \"${name}\"?"
   },
   "companionRemote": {
     "title": "Companion Remote",
diff --git a/lib/i18n/es.i18n.json b/lib/i18n/es.i18n.json
index e30f4991..eea4fab1 100644
--- a/lib/i18n/es.i18n.json
+++ b/lib/i18n/es.i18n.json
@@ -711,7 +711,13 @@
     "nvscalerDescription": "Escalado de imagen NVIDIA para un video más nítido",
     "qualityFast": "Rápido",
     "qualityHQ": "Alta Calidad",
-    "mode": "Modo"
+    "mode": "Modo",
+    "importShader": "Import Shader",
+    "customShaderDescription": "Custom GLSL shader",
+    "shaderImported": "Shader imported",
+    "shaderImportFailed": "Failed to import shader",
+    "deleteShader": "Delete Shader",
+    "deleteShaderConfirm": "Delete \"${name}\"?"
   },
   "companionRemote": {
     "title": "Companion Remote",
diff --git a/lib/i18n/fr.i18n.json b/lib/i18n/fr.i18n.json
index d890212e..602c9ef6 100644
--- a/lib/i18n/fr.i18n.json
+++ b/lib/i18n/fr.i18n.json
@@ -711,7 +711,13 @@
     "nvscalerDescription": "Mise à l'échelle NVIDIA pour une vidéo plus nette",
     "qualityFast": "Rapide",
     "qualityHQ": "Haute qualité",
-    "mode": "Mode"
+    "mode": "Mode",
+    "importShader": "Import Shader",
+    "customShaderDescription": "Custom GLSL shader",
+    "shaderImported": "Shader imported",
+    "shaderImportFailed": "Failed to import shader",
+    "deleteShader": "Delete Shader",
+    "deleteShaderConfirm": "Delete \"${name}\"?"
   },
   "companionRemote": {
     "title": "Companion Remote",
diff --git a/lib/i18n/it.i18n.json b/lib/i18n/it.i18n.json
index 2aa98fc0..f36cd95f 100644
--- a/lib/i18n/it.i18n.json
+++ b/lib/i18n/it.i18n.json
@@ -711,7 +711,13 @@
     "nvscalerDescription": "Ridimensionamento NVIDIA per video più nitido",
     "qualityFast": "Veloce",
     "qualityHQ": "Alta qualità",
-    "mode": "Modalità"
+    "mode": "Modalità",
+    "importShader": "Import Shader",
+    "customShaderDescription": "Custom GLSL shader",
+    "shaderImported": "Shader imported",
+    "shaderImportFailed": "Failed to import shader",
+    "deleteShader": "Delete Shader",
+    "deleteShaderConfirm": "Delete \"${name}\"?"
   },
   "companionRemote": {
     "title": "Companion Remote",
diff --git a/lib/i18n/ko.i18n.json b/lib/i18n/ko.i18n.json
index 08ced3e3..01fd2387 100644
--- a/lib/i18n/ko.i18n.json
+++ b/lib/i18n/ko.i18n.json
@@ -711,7 +711,13 @@
     "nvscalerDescription": "더 선명한 비디오를 위한 NVIDIA 이미지 스케일링",
     "qualityFast": "빠름",
     "qualityHQ": "고품질",
-    "mode": "모드"
+    "mode": "모드",
+    "importShader": "Import Shader",
+    "customShaderDescription": "Custom GLSL shader",
+    "shaderImported": "Shader imported",
+    "shaderImportFailed": "Failed to import shader",
+    "deleteShader": "Delete Shader",
+    "deleteShaderConfirm": "Delete \"${name}\"?"
   },
   "companionRemote": {
     "title": "Companion Remote",
diff --git a/lib/i18n/nl.i18n.json b/lib/i18n/nl.i18n.json
index e63726f7..4d8674e1 100644
--- a/lib/i18n/nl.i18n.json
+++ b/lib/i18n/nl.i18n.json
@@ -711,7 +711,13 @@
     "nvscalerDescription": "NVIDIA-beeldschaling voor scherpere video",
     "qualityFast": "Snel",
     "qualityHQ": "Hoge kwaliteit",
-    "mode": "Modus"
+    "mode": "Modus",
+    "importShader": "Import Shader",
+    "customShaderDescription": "Custom GLSL shader",
+    "shaderImported": "Shader imported",
+    "shaderImportFailed": "Failed to import shader",
+    "deleteShader": "Delete Shader",
+    "deleteShaderConfirm": "Delete \"${name}\"?"
   },
   "companionRemote": {
     "title": "Companion Remote",
diff --git a/lib/i18n/strings.g.dart b/lib/i18n/strings.g.dart
index 590838e0..5ee5dd56 100644
--- a/lib/i18n/strings.g.dart
+++ b/lib/i18n/strings.g.dart
@@ -4,9 +4,9 @@
 /// To regenerate, run: `dart run slang`
 ///
 /// Locales: 9
-/// Strings: 7182 (798 per locale)
+/// Strings: 7236 (804 per locale)
 ///
-/// Built on 2026-03-03 at 11:11 UTC
+/// Built on 2026-03-04 at 07:38 UTC
 
 // coverage:ignore-file
 // ignore_for_file: type=lint, unused_import
diff --git a/lib/i18n/strings_de.g.dart b/lib/i18n/strings_de.g.dart
index 6cdf117b..42730025 100644
--- a/lib/i18n/strings_de.g.dart
+++ b/lib/i18n/strings_de.g.dart
@@ -987,6 +987,12 @@ class _TranslationsShadersDe implements TranslationsShadersEn {
 	@override String get qualityFast => 'Schnell';
 	@override String get qualityHQ => 'Hohe Qualität';
 	@override String get mode => 'Modus';
+	@override String get importShader => 'Import Shader';
+	@override String get customShaderDescription => 'Custom GLSL shader';
+	@override String get shaderImported => 'Shader imported';
+	@override String get shaderImportFailed => 'Failed to import shader';
+	@override String get deleteShader => 'Delete Shader';
+	@override String deleteShaderConfirm({required Object name}) => 'Delete "${name}"?';
 }
 
 // Path: companionRemote
@@ -1935,6 +1941,12 @@ extension on TranslationsDe {
 			'shaders.qualityFast' => 'Schnell',
 			'shaders.qualityHQ' => 'Hohe Qualität',
 			'shaders.mode' => 'Modus',
+			'shaders.importShader' => 'Import Shader',
+			'shaders.customShaderDescription' => 'Custom GLSL shader',
+			'shaders.shaderImported' => 'Shader imported',
+			'shaders.shaderImportFailed' => 'Failed to import shader',
+			'shaders.deleteShader' => 'Delete Shader',
+			'shaders.deleteShaderConfirm' => ({required Object name}) => 'Delete "${name}"?',
 			'companionRemote.title' => 'Companion Remote',
 			'companionRemote.connectToDevice' => 'Mit Gerät verbinden',
 			'companionRemote.hostRemoteSession' => 'Fernsteuerungssitzung starten',
diff --git a/lib/i18n/strings_en.g.dart b/lib/i18n/strings_en.g.dart
index b2416943..438a853f 100644
--- a/lib/i18n/strings_en.g.dart
+++ b/lib/i18n/strings_en.g.dart
@@ -2197,6 +2197,24 @@ class TranslationsShadersEn {
 
 	/// en: 'Mode'
 	String get mode => 'Mode';
+
+	/// en: 'Import Shader'
+	String get importShader => 'Import Shader';
+
+	/// en: 'Custom GLSL shader'
+	String get customShaderDescription => 'Custom GLSL shader';
+
+	/// en: 'Shader imported'
+	String get shaderImported => 'Shader imported';
+
+	/// en: 'Failed to import shader'
+	String get shaderImportFailed => 'Failed to import shader';
+
+	/// en: 'Delete Shader'
+	String get deleteShader => 'Delete Shader';
+
+	/// en: 'Delete "${name}"?'
+	String deleteShaderConfirm({required Object name}) => 'Delete "${name}"?';
 }
 
 // Path: companionRemote
@@ -3538,6 +3556,12 @@ extension on Translations {
 			'shaders.qualityFast' => 'Fast',
 			'shaders.qualityHQ' => 'High Quality',
 			'shaders.mode' => 'Mode',
+			'shaders.importShader' => 'Import Shader',
+			'shaders.customShaderDescription' => 'Custom GLSL shader',
+			'shaders.shaderImported' => 'Shader imported',
+			'shaders.shaderImportFailed' => 'Failed to import shader',
+			'shaders.deleteShader' => 'Delete Shader',
+			'shaders.deleteShaderConfirm' => ({required Object name}) => 'Delete "${name}"?',
 			'companionRemote.title' => 'Companion Remote',
 			'companionRemote.connectToDevice' => 'Connect to Device',
 			'companionRemote.hostRemoteSession' => 'Host Remote Session',
diff --git a/lib/i18n/strings_es.g.dart b/lib/i18n/strings_es.g.dart
index 20fe8a6e..bc1957d2 100644
--- a/lib/i18n/strings_es.g.dart
+++ b/lib/i18n/strings_es.g.dart
@@ -987,6 +987,12 @@ class _TranslationsShadersEs implements TranslationsShadersEn {
 	@override String get qualityFast => 'Rápido';
 	@override String get qualityHQ => 'Alta Calidad';
 	@override String get mode => 'Modo';
+	@override String get importShader => 'Import Shader';
+	@override String get customShaderDescription => 'Custom GLSL shader';
+	@override String get shaderImported => 'Shader imported';
+	@override String get shaderImportFailed => 'Failed to import shader';
+	@override String get deleteShader => 'Delete Shader';
+	@override String deleteShaderConfirm({required Object name}) => 'Delete "${name}"?';
 }
 
 // Path: companionRemote
@@ -1935,6 +1941,12 @@ extension on TranslationsEs {
 			'shaders.qualityFast' => 'Rápido',
 			'shaders.qualityHQ' => 'Alta Calidad',
 			'shaders.mode' => 'Modo',
+			'shaders.importShader' => 'Import Shader',
+			'shaders.customShaderDescription' => 'Custom GLSL shader',
+			'shaders.shaderImported' => 'Shader imported',
+			'shaders.shaderImportFailed' => 'Failed to import shader',
+			'shaders.deleteShader' => 'Delete Shader',
+			'shaders.deleteShaderConfirm' => ({required Object name}) => 'Delete "${name}"?',
 			'companionRemote.title' => 'Companion Remote',
 			'companionRemote.connectToDevice' => 'Conectar a dispositivo',
 			'companionRemote.hostRemoteSession' => 'Iniciar sesión remota',
diff --git a/lib/i18n/strings_fr.g.dart b/lib/i18n/strings_fr.g.dart
index 72acda2f..2d9821e6 100644
--- a/lib/i18n/strings_fr.g.dart
+++ b/lib/i18n/strings_fr.g.dart
@@ -987,6 +987,12 @@ class _TranslationsShadersFr implements TranslationsShadersEn {
 	@override String get qualityFast => 'Rapide';
 	@override String get qualityHQ => 'Haute qualité';
 	@override String get mode => 'Mode';
+	@override String get importShader => 'Import Shader';
+	@override String get customShaderDescription => 'Custom GLSL shader';
+	@override String get shaderImported => 'Shader imported';
+	@override String get shaderImportFailed => 'Failed to import shader';
+	@override String get deleteShader => 'Delete Shader';
+	@override String deleteShaderConfirm({required Object name}) => 'Delete "${name}"?';
 }
 
 // Path: companionRemote
@@ -1935,6 +1941,12 @@ extension on TranslationsFr {
 			'shaders.qualityFast' => 'Rapide',
 			'shaders.qualityHQ' => 'Haute qualité',
 			'shaders.mode' => 'Mode',
+			'shaders.importShader' => 'Import Shader',
+			'shaders.customShaderDescription' => 'Custom GLSL shader',
+			'shaders.shaderImported' => 'Shader imported',
+			'shaders.shaderImportFailed' => 'Failed to import shader',
+			'shaders.deleteShader' => 'Delete Shader',
+			'shaders.deleteShaderConfirm' => ({required Object name}) => 'Delete "${name}"?',
 			'companionRemote.title' => 'Companion Remote',
 			'companionRemote.connectToDevice' => 'Se connecter à un appareil',
 			'companionRemote.hostRemoteSession' => 'Héberger une session distante',
diff --git a/lib/i18n/strings_it.g.dart b/lib/i18n/strings_it.g.dart
index 26e54259..7557767c 100644
--- a/lib/i18n/strings_it.g.dart
+++ b/lib/i18n/strings_it.g.dart
@@ -987,6 +987,12 @@ class _TranslationsShadersIt implements TranslationsShadersEn {
 	@override String get qualityFast => 'Veloce';
 	@override String get qualityHQ => 'Alta qualità';
 	@override String get mode => 'Modalità';
+	@override String get importShader => 'Import Shader';
+	@override String get customShaderDescription => 'Custom GLSL shader';
+	@override String get shaderImported => 'Shader imported';
+	@override String get shaderImportFailed => 'Failed to import shader';
+	@override String get deleteShader => 'Delete Shader';
+	@override String deleteShaderConfirm({required Object name}) => 'Delete "${name}"?';
 }
 
 // Path: companionRemote
@@ -1935,6 +1941,12 @@ extension on TranslationsIt {
 			'shaders.qualityFast' => 'Veloce',
 			'shaders.qualityHQ' => 'Alta qualità',
 			'shaders.mode' => 'Modalità',
+			'shaders.importShader' => 'Import Shader',
+			'shaders.customShaderDescription' => 'Custom GLSL shader',
+			'shaders.shaderImported' => 'Shader imported',
+			'shaders.shaderImportFailed' => 'Failed to import shader',
+			'shaders.deleteShader' => 'Delete Shader',
+			'shaders.deleteShaderConfirm' => ({required Object name}) => 'Delete "${name}"?',
 			'companionRemote.title' => 'Companion Remote',
 			'companionRemote.connectToDevice' => 'Connetti a un dispositivo',
 			'companionRemote.hostRemoteSession' => 'Ospita sessione remota',
diff --git a/lib/i18n/strings_ko.g.dart b/lib/i18n/strings_ko.g.dart
index c6164812..b97cf5dc 100644
--- a/lib/i18n/strings_ko.g.dart
+++ b/lib/i18n/strings_ko.g.dart
@@ -987,6 +987,12 @@ class _TranslationsShadersKo implements TranslationsShadersEn {
 	@override String get qualityFast => '빠름';
 	@override String get qualityHQ => '고품질';
 	@override String get mode => '모드';
+	@override String get importShader => 'Import Shader';
+	@override String get customShaderDescription => 'Custom GLSL shader';
+	@override String get shaderImported => 'Shader imported';
+	@override String get shaderImportFailed => 'Failed to import shader';
+	@override String get deleteShader => 'Delete Shader';
+	@override String deleteShaderConfirm({required Object name}) => 'Delete "${name}"?';
 }
 
 // Path: companionRemote
@@ -1935,6 +1941,12 @@ extension on TranslationsKo {
 			'shaders.qualityFast' => '빠름',
 			'shaders.qualityHQ' => '고품질',
 			'shaders.mode' => '모드',
+			'shaders.importShader' => 'Import Shader',
+			'shaders.customShaderDescription' => 'Custom GLSL shader',
+			'shaders.shaderImported' => 'Shader imported',
+			'shaders.shaderImportFailed' => 'Failed to import shader',
+			'shaders.deleteShader' => 'Delete Shader',
+			'shaders.deleteShaderConfirm' => ({required Object name}) => 'Delete "${name}"?',
 			'companionRemote.title' => 'Companion Remote',
 			'companionRemote.connectToDevice' => '기기에 연결',
 			'companionRemote.hostRemoteSession' => '원격 세션 호스트',
diff --git a/lib/i18n/strings_nl.g.dart b/lib/i18n/strings_nl.g.dart
index e2cb7fc8..e44561cf 100644
--- a/lib/i18n/strings_nl.g.dart
+++ b/lib/i18n/strings_nl.g.dart
@@ -987,6 +987,12 @@ class _TranslationsShadersNl implements TranslationsShadersEn {
 	@override String get qualityFast => 'Snel';
 	@override String get qualityHQ => 'Hoge kwaliteit';
 	@override String get mode => 'Modus';
+	@override String get importShader => 'Import Shader';
+	@override String get customShaderDescription => 'Custom GLSL shader';
+	@override String get shaderImported => 'Shader imported';
+	@override String get shaderImportFailed => 'Failed to import shader';
+	@override String get deleteShader => 'Delete Shader';
+	@override String deleteShaderConfirm({required Object name}) => 'Delete "${name}"?';
 }
 
 // Path: companionRemote
@@ -1935,6 +1941,12 @@ extension on TranslationsNl {
 			'shaders.qualityFast' => 'Snel',
 			'shaders.qualityHQ' => 'Hoge kwaliteit',
 			'shaders.mode' => 'Modus',
+			'shaders.importShader' => 'Import Shader',
+			'shaders.customShaderDescription' => 'Custom GLSL shader',
+			'shaders.shaderImported' => 'Shader imported',
+			'shaders.shaderImportFailed' => 'Failed to import shader',
+			'shaders.deleteShader' => 'Delete Shader',
+			'shaders.deleteShaderConfirm' => ({required Object name}) => 'Delete "${name}"?',
 			'companionRemote.title' => 'Companion Remote',
 			'companionRemote.connectToDevice' => 'Verbinden met apparaat',
 			'companionRemote.hostRemoteSession' => 'Externe sessie hosten',
diff --git a/lib/i18n/strings_sv.g.dart b/lib/i18n/strings_sv.g.dart
index 0e68e409..858359eb 100644
--- a/lib/i18n/strings_sv.g.dart
+++ b/lib/i18n/strings_sv.g.dart
@@ -987,6 +987,12 @@ class _TranslationsShadersSv implements TranslationsShadersEn {
 	@override String get qualityFast => 'Snabb';
 	@override String get qualityHQ => 'Hög kvalitet';
 	@override String get mode => 'Läge';
+	@override String get importShader => 'Import Shader';
+	@override String get customShaderDescription => 'Custom GLSL shader';
+	@override String get shaderImported => 'Shader imported';
+	@override String get shaderImportFailed => 'Failed to import shader';
+	@override String get deleteShader => 'Delete Shader';
+	@override String deleteShaderConfirm({required Object name}) => 'Delete "${name}"?';
 }
 
 // Path: companionRemote
@@ -1935,6 +1941,12 @@ extension on TranslationsSv {
 			'shaders.qualityFast' => 'Snabb',
 			'shaders.qualityHQ' => 'Hög kvalitet',
 			'shaders.mode' => 'Läge',
+			'shaders.importShader' => 'Import Shader',
+			'shaders.customShaderDescription' => 'Custom GLSL shader',
+			'shaders.shaderImported' => 'Shader imported',
+			'shaders.shaderImportFailed' => 'Failed to import shader',
+			'shaders.deleteShader' => 'Delete Shader',
+			'shaders.deleteShaderConfirm' => ({required Object name}) => 'Delete "${name}"?',
 			'companionRemote.title' => 'Companion Remote',
 			'companionRemote.connectToDevice' => 'Anslut till enhet',
 			'companionRemote.hostRemoteSession' => 'Starta fjärrsession',
diff --git a/lib/i18n/strings_zh.g.dart b/lib/i18n/strings_zh.g.dart
index 8b75ed8f..9363e610 100644
--- a/lib/i18n/strings_zh.g.dart
+++ b/lib/i18n/strings_zh.g.dart
@@ -987,6 +987,12 @@ class _TranslationsShadersZh implements TranslationsShadersEn {
 	@override String get qualityFast => '快速';
 	@override String get qualityHQ => '高质量';
 	@override String get mode => '模式';
+	@override String get importShader => 'Import Shader';
+	@override String get customShaderDescription => 'Custom GLSL shader';
+	@override String get shaderImported => 'Shader imported';
+	@override String get shaderImportFailed => 'Failed to import shader';
+	@override String get deleteShader => 'Delete Shader';
+	@override String deleteShaderConfirm({required Object name}) => 'Delete "${name}"?';
 }
 
 // Path: companionRemote
@@ -1935,6 +1941,12 @@ extension on TranslationsZh {
 			'shaders.qualityFast' => '快速',
 			'shaders.qualityHQ' => '高质量',
 			'shaders.mode' => '模式',
+			'shaders.importShader' => 'Import Shader',
+			'shaders.customShaderDescription' => 'Custom GLSL shader',
+			'shaders.shaderImported' => 'Shader imported',
+			'shaders.shaderImportFailed' => 'Failed to import shader',
+			'shaders.deleteShader' => 'Delete Shader',
+			'shaders.deleteShaderConfirm' => ({required Object name}) => 'Delete "${name}"?',
 			'companionRemote.title' => 'Companion Remote',
 			'companionRemote.connectToDevice' => '连接到设备',
 			'companionRemote.hostRemoteSession' => '创建远程会话',
diff --git a/lib/i18n/sv.i18n.json b/lib/i18n/sv.i18n.json
index 5dd9557b..08e072e7 100644
--- a/lib/i18n/sv.i18n.json
+++ b/lib/i18n/sv.i18n.json
@@ -711,7 +711,13 @@
     "nvscalerDescription": "NVIDIA-bildskalning för skarpare video",
     "qualityFast": "Snabb",
     "qualityHQ": "Hög kvalitet",
-    "mode": "Läge"
+    "mode": "Läge",
+    "importShader": "Import Shader",
+    "customShaderDescription": "Custom GLSL shader",
+    "shaderImported": "Shader imported",
+    "shaderImportFailed": "Failed to import shader",
+    "deleteShader": "Delete Shader",
+    "deleteShaderConfirm": "Delete \"${name}\"?"
   },
   "companionRemote": {
     "title": "Companion Remote",
diff --git a/lib/i18n/zh.i18n.json b/lib/i18n/zh.i18n.json
index bfa3e145..61f30a1f 100644
--- a/lib/i18n/zh.i18n.json
+++ b/lib/i18n/zh.i18n.json
@@ -711,7 +711,13 @@
     "nvscalerDescription": "NVIDIA 图像缩放，使视频更清晰",
     "qualityFast": "快速",
     "qualityHQ": "高质量",
-    "mode": "模式"
+    "mode": "模式",
+    "importShader": "Import Shader",
+    "customShaderDescription": "Custom GLSL shader",
+    "shaderImported": "Shader imported",
+    "shaderImportFailed": "Failed to import shader",
+    "deleteShader": "Delete Shader",
+    "deleteShaderConfirm": "Delete \"${name}\"?"
   },
   "companionRemote": {
     "title": "Companion Remote",
diff --git a/lib/models/shader_preset.dart b/lib/models/shader_preset.dart
index 95dcb254..7fba939a 100644
--- a/lib/models/shader_preset.dart
+++ b/lib/models/shader_preset.dart
@@ -1,5 +1,5 @@
 /// Shader preset types available in the app
-enum ShaderPresetType { none, nvscaler, anime4k }
+enum ShaderPresetType { none, nvscaler, anime4k, custom }
 
 /// Quality tiers for Anime4K presets
 enum Anime4KQuality {
@@ -88,12 +88,16 @@ class ShaderPreset {
   final Anime4KConfig? anime4kConfig;
   final NVScalerConfig? nvscalerConfig;
 
+  /// File name of the custom shader in the custom shaders directory
+  final String? fileName;
+
   const ShaderPreset({
     required this.id,
     required this.name,
     required this.type,
     this.anime4kConfig,
     this.nvscalerConfig,
+    this.fileName,
   });
 
   /// No shader preset (off)
@@ -193,6 +197,7 @@ class ShaderPreset {
     'type': type.name,
     if (anime4kConfig != null) 'anime4kConfig': anime4kConfig!.toJson(),
     if (nvscalerConfig != null) 'nvscalerConfig': nvscalerConfig!.toJson(),
+    if (fileName != null) 'fileName': fileName,
   };
 
   factory ShaderPreset.fromJson(Map<String, dynamic> json) {
@@ -210,6 +215,7 @@ class ShaderPreset {
       type: ShaderPresetType.values.asNameMap()[json['type']] ?? ShaderPresetType.none,
       anime4kConfig: json['anime4kConfig'] != null ? Anime4KConfig.fromJson(json['anime4kConfig']) : null,
       nvscalerConfig: json['nvscalerConfig'] != null ? NVScalerConfig.fromJson(json['nvscalerConfig']) : null,
+      fileName: json['fileName'] as String?,
     );
   }
 }
diff --git a/lib/providers/shader_provider.dart b/lib/providers/shader_provider.dart
index e3c0c1c7..43c7c23e 100644
--- a/lib/providers/shader_provider.dart
+++ b/lib/providers/shader_provider.dart
@@ -2,6 +2,7 @@ import 'package:flutter/foundation.dart';
 
 import '../models/shader_preset.dart';
 import '../services/settings_service.dart';
+import '../services/shader_asset_loader.dart';
 
 /// Provider for managing shader preset state.
 ///
@@ -11,6 +12,7 @@ class ShaderProvider extends ChangeNotifier {
 
   ShaderPreset _savedPreset = ShaderPreset.none;
   ShaderPreset _currentPreset = ShaderPreset.none;
+  List<ShaderPreset> _customPresets = [];
   bool _initialized = false;
 
   ShaderProvider() {
@@ -20,8 +22,12 @@ class ShaderProvider extends ChangeNotifier {
   Future<void> _initialize() async {
     _settingsService = await SettingsService.getInstance();
 
+    // Load custom presets from storage
+    final customData = _settingsService.getCustomShaderPresets();
+    _customPresets = customData.map((json) => ShaderPreset.fromJson(json)).toList();
+
     final presetId = _settingsService.getGlobalShaderPreset();
-    _savedPreset = ShaderPreset.fromId(presetId) ?? ShaderPreset.none;
+    _savedPreset = findPresetById(presetId) ?? ShaderPreset.none;
     _currentPreset = _savedPreset;
 
     _initialized = true;
@@ -37,12 +43,20 @@ class ShaderProvider extends ChangeNotifier {
   /// The currently active shader preset
   ShaderPreset get currentPreset => _currentPreset;
 
-  /// All available shader presets
-  List<ShaderPreset> get allPresets => ShaderPreset.allPresets;
+  /// All available shader presets (built-in + custom)
+  List<ShaderPreset> get allPresets => [...ShaderPreset.allPresets, ..._customPresets];
+
+  /// Custom shader presets only
+  List<ShaderPreset> get customPresets => _customPresets;
 
   /// Whether any shader is currently enabled
   bool get isShaderEnabled => _currentPreset.type != ShaderPresetType.none;
 
+  /// Find a preset by its ID, searching both built-in and custom presets.
+  ShaderPreset? findPresetById(String id) {
+    return ShaderPreset.fromId(id) ?? _customPresets.cast<ShaderPreset?>().firstWhere((p) => p!.id == id, orElse: () => null);
+  }
+
   /// Apply and persist a shader preset
   Future<void> setPreset(ShaderPreset preset) async {
     _savedPreset = preset;
@@ -59,6 +73,48 @@ class ShaderProvider extends ChangeNotifier {
     }
   }
 
+  /// Import a custom shader from a file path.
+  /// Copies the file to the custom shaders directory and creates a preset.
+  Future<ShaderPreset> importCustomShader(String filePath, String displayName) async {
+    final storedFileName = await ShaderAssetLoader.importCustomShader(filePath);
+    final id = 'custom_$storedFileName';
+
+    final preset = ShaderPreset(
+      id: id,
+      name: displayName,
+      type: ShaderPresetType.custom,
+      fileName: storedFileName,
+    );
+
+    _customPresets.add(preset);
+    await _saveCustomPresets();
+    notifyListeners();
+    return preset;
+  }
+
+  /// Delete a custom shader preset and its file.
+  Future<void> deleteCustomShader(ShaderPreset preset) async {
+    if (preset.fileName != null) {
+      await ShaderAssetLoader.deleteCustomShader(preset.fileName!);
+    }
+    _customPresets.removeWhere((p) => p.id == preset.id);
+    await _saveCustomPresets();
+
+    // Reset to none if the deleted preset was active
+    if (_currentPreset.id == preset.id || _savedPreset.id == preset.id) {
+      _savedPreset = ShaderPreset.none;
+      _currentPreset = ShaderPreset.none;
+      await _settingsService.setGlobalShaderPreset(ShaderPreset.none.id);
+    }
+
+    notifyListeners();
+  }
+
+  Future<void> _saveCustomPresets() async {
+    final data = _customPresets.map((p) => p.toJson()).toList();
+    await _settingsService.setCustomShaderPresets(data);
+  }
+
   /// Reset to default (no shaders)
   Future<void> reset() async {
     await setPreset(ShaderPreset.none);
diff --git a/lib/screens/video_player_screen.dart b/lib/screens/video_player_screen.dart
index f73f221a..5105cd41 100644
--- a/lib/screens/video_player_screen.dart
+++ b/lib/screens/video_player_screen.dart
@@ -1289,12 +1289,13 @@ class VideoPlayerScreenState extends State<VideoPlayerScreen> with WidgetsBindin
     if (_shaderService == null || !_shaderService!.isSupported) return;
 
     try {
+      final shaderProvider = context.read<ShaderProvider>();
       final settings = await SettingsService.getInstance();
       final presetId = settings.getGlobalShaderPreset();
-      final preset = ShaderPreset.fromId(presetId) ?? ShaderPreset.none;
+      final preset = (shaderProvider.initialized ? shaderProvider.findPresetById(presetId) : ShaderPreset.fromId(presetId)) ?? ShaderPreset.none;
       await _shaderService!.applyPreset(preset);
       if (!mounted) return;
-      context.read<ShaderProvider>().setCurrentPreset(preset);
+      shaderProvider.setCurrentPreset(preset);
     } catch (e) {
       appLogger.d('Could not apply shader preset', error: e);
     }
diff --git a/lib/services/settings_service.dart b/lib/services/settings_service.dart
index 4658817c..409e3754 100644
--- a/lib/services/settings_service.dart
+++ b/lib/services/settings_service.dart
@@ -86,6 +86,7 @@ class SettingsService extends BaseSharedPreferencesService {
   static const String _keyAmbientLighting = 'ambient_lighting';
   static const String _keyAudioPassthrough = 'audio_passthrough';
   static const String _keyAudioNormalization = 'audio_normalization';
+  static const String _keyCustomShaderPresets = 'custom_shader_presets';
 
   SettingsService._();
 
@@ -1153,6 +1154,22 @@ class SettingsService extends BaseSharedPreferencesService {
     return prefs.getString(_keyGlobalShaderPreset) ?? 'none'; // Default: no shader
   }
 
+  // Custom Shader Presets
+  List<Map<String, dynamic>> getCustomShaderPresets() {
+    final jsonString = prefs.getString(_keyCustomShaderPresets);
+    if (jsonString == null) return [];
+    try {
+      final List<dynamic> decoded = json.decode(jsonString);
+      return decoded.cast<Map<String, dynamic>>();
+    } catch (_) {
+      return [];
+    }
+  }
+
+  Future<void> setCustomShaderPresets(List<Map<String, dynamic>> presets) async {
+    await prefs.setString(_keyCustomShaderPresets, json.encode(presets));
+  }
+
   // Require Profile Selection on App Open
   Future<void> setRequireProfileSelectionOnOpen(bool enabled) async {
     await prefs.setBool(_keyRequireProfileSelectionOnOpen, enabled);
@@ -1309,6 +1326,7 @@ class SettingsService extends BaseSharedPreferencesService {
       prefs.remove(_keyShowUnwatchedCount),
       prefs.remove(_keyHideSpoilers),
       prefs.remove(_keyGlobalShaderPreset),
+      prefs.remove(_keyCustomShaderPresets),
       prefs.remove(_keyRequireProfileSelectionOnOpen),
       prefs.remove(_keyUseExternalPlayer),
       prefs.remove(_keySelectedExternalPlayer),
diff --git a/lib/services/shader_asset_loader.dart b/lib/services/shader_asset_loader.dart
index 7d037431..0f31e107 100644
--- a/lib/services/shader_asset_loader.dart
+++ b/lib/services/shader_asset_loader.dart
@@ -174,6 +174,47 @@ class ShaderAssetLoader {
     return shaders;
   }
 
+  /// Get the custom shader directory path, creating it if necessary.
+  /// Uses app support directory (persistent) rather than temp/cache.
+  static Future<String> _getCustomShaderDirectory() async {
+    final supportDir = await getApplicationSupportDirectory();
+    final customDir = Directory(path.join(supportDir.path, 'custom_shaders'));
+
+    if (!await customDir.exists()) {
+      await customDir.create(recursive: true);
+    }
+
+    return customDir.path;
+  }
+
+  /// Import a custom shader file into the custom shaders directory.
+  /// Returns the stored file name (UUID-based to avoid collisions).
+  static Future<String> importCustomShader(String sourcePath) async {
+    final customDir = await _getCustomShaderDirectory();
+    final ext = path.extension(sourcePath);
+    final uuid = DateTime.now().millisecondsSinceEpoch.toRadixString(36);
+    final storedName = '$uuid$ext';
+    final targetFile = File(path.join(customDir, storedName));
+
+    await File(sourcePath).copy(targetFile.path);
+    return storedName;
+  }
+
+  /// Delete a custom shader file from the custom shaders directory.
+  static Future<void> deleteCustomShader(String fileName) async {
+    final customDir = await _getCustomShaderDirectory();
+    final file = File(path.join(customDir, fileName));
+    if (await file.exists()) {
+      await file.delete();
+    }
+  }
+
+  /// Get the absolute path for a custom shader file.
+  static Future<String> getCustomShaderPath(String fileName) async {
+    final customDir = await _getCustomShaderDirectory();
+    return path.join(customDir, fileName);
+  }
+
   /// Get shader paths for a given preset.
   /// Returns an empty list for ShaderPresetType.none.
   static Future<List<String>> getShadersForPreset(ShaderPreset preset) async {
@@ -185,6 +226,11 @@ class ShaderAssetLoader {
       case ShaderPresetType.anime4k:
         if (preset.anime4kConfig == null) return [];
         return getAnime4KShaders(preset.anime4kConfig!);
+      case ShaderPresetType.custom:
+        if (preset.fileName == null) return [];
+        final shaderPath = await getCustomShaderPath(preset.fileName!);
+        if (!await File(shaderPath).exists()) return [];
+        return [shaderPath];
     }
   }
 
diff --git a/lib/services/shader_service.dart b/lib/services/shader_service.dart
index b5f64286..31ded2c4 100644
--- a/lib/services/shader_service.dart
+++ b/lib/services/shader_service.dart
@@ -149,8 +149,8 @@ class ShaderService {
   }
 
   /// Cycle to the next preset in the available list.
-  Future<ShaderPreset> cyclePreset() async {
-    final presets = ShaderPreset.allPresets;
+  Future<ShaderPreset> cyclePreset({List<ShaderPreset>? presets}) async {
+    presets ??= ShaderPreset.allPresets;
     final currentIndex = presets.indexWhere((p) => p.id == _currentPreset.id);
     final nextIndex = (currentIndex + 1) % presets.length;
     final nextPreset = presets[nextIndex];
diff --git a/lib/widgets/video_controls/sheets/video_settings_sheet.dart b/lib/widgets/video_controls/sheets/video_settings_sheet.dart
index 1bf81b69..4c37271f 100644
--- a/lib/widgets/video_controls/sheets/video_settings_sheet.dart
+++ b/lib/widgets/video_controls/sheets/video_settings_sheet.dart
@@ -1,8 +1,10 @@
 import 'dart:io';
 
+import 'package:file_picker/file_picker.dart';
 import 'package:flutter/material.dart';
 import 'package:plezy/widgets/app_icon.dart';
 import 'package:material_symbols_icons/symbols.dart';
+import 'package:path/path.dart' as path;
 
 import 'package:provider/provider.dart';
 
@@ -13,8 +15,10 @@ import '../../../services/settings_service.dart';
 import '../../../services/shader_service.dart';
 import '../../../services/sleep_timer_service.dart';
 import '../../../focus/focusable_wrapper.dart';
+import '../../../utils/dialogs.dart';
 import '../../../utils/formatters.dart';
 import '../../../utils/platform_detector.dart';
+import '../../../utils/snackbar_helper.dart';
 import '../../../theme/mono_tokens.dart';
 import '../../../widgets/focusable_list_tile.dart';
 import '../../../widgets/overlay_sheet.dart';
@@ -659,20 +663,43 @@ class _VideoSettingsSheetState extends State<VideoSettingsSheet> {
     return Consumer<ShaderProvider>(
       builder: (context, shaderProvider, _) {
         final currentPreset = widget.shaderService!.currentPreset;
-        final presets = ShaderPreset.allPresets;
+        final presets = shaderProvider.allPresets;
 
+        // +1 for the import button at the end
         return ListView.builder(
-          itemCount: presets.length,
+          itemCount: presets.length + 1,
           itemBuilder: (context, index) {
+            // Import button at the end
+            if (index == presets.length) {
+              return FocusableListTile(
+                leading: AppIcon(Symbols.add_rounded, fill: 1, color: tokens(context).textMuted),
+                title: Text(t.shaders.importShader),
+                onTap: () => _importCustomShader(shaderProvider),
+              );
+            }
+
             final preset = presets[index];
             final isSelected = preset.id == currentPreset.id;
+            final isCustom = preset.type == ShaderPresetType.custom;
 
             return FocusableListTile(
               title: Text(preset.name, style: TextStyle(color: isSelected ? Colors.amber : null)),
               subtitle: _getShaderSubtitle(preset) != null
                   ? Text(_getShaderSubtitle(preset)!, style: TextStyle(color: tokens(context).textMuted, fontSize: 12))
                   : null,
-              trailing: isSelected ? const AppIcon(Symbols.check_rounded, fill: 1, color: Colors.amber) : null,
+              trailing: Row(
+                mainAxisSize: MainAxisSize.min,
+                children: [
+                  if (isSelected) const AppIcon(Symbols.check_rounded, fill: 1, color: Colors.amber),
+                  if (isCustom) ...[
+                    if (isSelected) const SizedBox(width: 8),
+                    GestureDetector(
+                      onTap: () => _deleteCustomShader(shaderProvider, preset),
+                      child: AppIcon(Symbols.delete_rounded, fill: 1, color: tokens(context).textMuted, size: 20),
+                    ),
+                  ],
+                ],
+              ),
               onTap: () async {
                 // Disable ambient lighting when selecting a shader
                 if (preset.type != ShaderPresetType.none && widget.isAmbientLightingEnabled) {
@@ -690,6 +717,54 @@ class _VideoSettingsSheetState extends State<VideoSettingsSheet> {
     );
   }
 
+  Future<void> _importCustomShader(ShaderProvider shaderProvider) async {
+    final result = await FilePicker.platform.pickFiles(
+      type: FileType.custom,
+      allowedExtensions: ['glsl'],
+    );
+
+    if (result == null || result.files.isEmpty || !mounted) return;
+
+    final filePath = result.files.first.path;
+    if (filePath == null) return;
+
+    try {
+      final displayName = path.basenameWithoutExtension(filePath);
+      final preset = await shaderProvider.importCustomShader(filePath, displayName);
+
+      // Apply the imported shader immediately
+      if (widget.shaderService != null && mounted) {
+        if (preset.type != ShaderPresetType.none && widget.isAmbientLightingEnabled) {
+          widget.onToggleAmbientLighting?.call();
+        }
+        await widget.shaderService!.applyPreset(preset);
+        await shaderProvider.setPreset(preset);
+        widget.onShaderChanged?.call();
+      }
+
+      if (mounted) showSuccessSnackBar(context, t.shaders.shaderImported);
+    } catch (_) {
+      if (mounted) showErrorSnackBar(context, t.shaders.shaderImportFailed);
+    }
+  }
+
+  Future<void> _deleteCustomShader(ShaderProvider shaderProvider, ShaderPreset preset) async {
+    final confirmed = await showDeleteConfirmation(
+      context,
+      title: t.shaders.deleteShader,
+      message: t.shaders.deleteShaderConfirm(name: preset.name),
+    );
+    if (!confirmed || !mounted) return;
+
+    // If the deleted shader is active, clear it from the player first
+    if (widget.shaderService!.currentPreset.id == preset.id) {
+      await widget.shaderService!.applyPreset(ShaderPreset.none);
+      widget.onShaderChanged?.call();
+    }
+
+    await shaderProvider.deleteCustomShader(preset);
+  }
+
   String? _getShaderSubtitle(ShaderPreset preset) {
     switch (preset.type) {
       case ShaderPresetType.none:
@@ -705,6 +780,8 @@ class _VideoSettingsSheetState extends State<VideoSettingsSheet> {
           return '$quality - ${t.shaders.mode} $mode';
         }
         return null;
+      case ShaderPresetType.custom:
+        return t.shaders.customShaderDescription;
     }
   }
 
diff --git a/lib/widgets/video_controls/video_controls.dart b/lib/widgets/video_controls/video_controls.dart
index b652cd7f..8e026a2b 100644
--- a/lib/widgets/video_controls/video_controls.dart
+++ b/lib/widgets/video_controls/video_controls.dart
@@ -592,9 +592,10 @@ class _PlexVideoControlsState extends State<PlexVideoControls> with WindowListen
       // Currently off - restore saved preset
       final shaderProvider = context.read<ShaderProvider>();
       final saved = shaderProvider.savedPreset;
+      final allPresets = shaderProvider.allPresets;
       final targetPreset = saved.isEnabled
           ? saved
-          : ShaderPreset.allPresets.firstWhere((p) => p.isEnabled, orElse: () => ShaderPreset.allPresets[1]);
+          : allPresets.firstWhere((p) => p.isEnabled, orElse: () => allPresets[1]);
       shaderService.applyPreset(targetPreset).then((_) {
         shaderProvider.setCurrentPreset(targetPreset);
         // ignore: no-empty-block - setState triggers rebuild to reflect restored shader