diff --git a/types/accessibility/accessibility-tests.ts b/types/accessibility/accessibility-tests.ts
new file mode 100644
index 0000000000..5deeb35736
--- /dev/null
+++ b/types/accessibility/accessibility-tests.ts
@@ -0,0 +1,50 @@
+let options: Accessibility.Options = {
+    icon: {
+        position: {
+            bottom: { size: 50, units: 'px' },
+            right: { size: 0, units: 'px' },
+            type: 'fixed',
+        },
+        circular: false,
+        img: 'accessible',
+    },
+    session: {
+        persistent: false,
+    },
+};
+new Accessibility(options);
+
+options = {
+    icon: {
+        position: {
+            top: { size: 2, units: 'vh' },
+            left: { size: 2, units: '%' },
+            type: 'absolute',
+        },
+    },
+};
+new Accessibility(options);
+
+const instance = new Accessibility(options);
+
+instance.menuInterface.increaseText();
+
+instance.menuInterface.decreaseText();
+
+instance.menuInterface.increaseTextSpacing();
+
+instance.menuInterface.decreaseTextSpacing();
+
+instance.menuInterface.invertColors();
+
+instance.menuInterface.grayHues();
+
+instance.menuInterface.underlineLinks();
+
+instance.menuInterface.bigCursor();
+
+instance.menuInterface.readingGuide();
+
+instance.menuInterface.textToSpeech();
+
+instance.menuInterface.speechToText();
diff --git a/types/accessibility/index.d.ts b/types/accessibility/index.d.ts
new file mode 100644
index 0000000000..8814543f14
--- /dev/null
+++ b/types/accessibility/index.d.ts
@@ -0,0 +1,204 @@
+// Type definitions for accessibility 3.0
+// Project: https://github.com/ranbuch/accessibility#readme
+// Definitions by: Piotr Błażejewicz <https://github.com/peterblazejewicz>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+export as namespace Accessibility;
+
+/**
+ * Adaptive Accessibility Menu
+ */
+declare class Accessibility {
+    readonly menuInterface: Accessibility.MenuInterface;
+    /** @deprecated */
+    static init(options?: Accessibility.Options): Accessibility;
+
+    constructor(options?: Accessibility.Options);
+
+    alterTextSpace(isIncrease: boolean): void;
+    build(): void;
+    deleteOppositesIfDefined(options: Accessibility.Options): Accessibility.Options;
+    destroy(): void;
+    disabledUnsupportedFeatures(): void;
+    fontFallback(): void;
+    initFontSize(): void;
+    injectCss(): void;
+    invoke(action: () => void): void;
+    listen(): void;
+    onChange(updateSession: boolean): void;
+    read(): void;
+    resetIfDefined(src: any, dest: any, prop: string): void;
+    runHotkey(name: string): void;
+    saveSession(): void;
+    setSessionFromCache(): void;
+    speechToText(): void;
+    textToSpeech(text: string): void;
+    toggleMenu(): void;
+}
+
+/**
+ * Add accessibility to your website
+ */
+declare namespace Accessibility {
+    interface MenuInterface {
+        increaseText: () => void;
+        decreaseText: () => void;
+        increaseTextSpacing: () => void;
+        decreaseTextSpacing: () => void;
+        invertColors: (destroy?: boolean) => void;
+        grayHues: (destroy?: boolean) => void;
+        underlineLinks: (destroy?: boolean) => void;
+        bigCursor: (destroy?: boolean) => void;
+        readingGuide: (destroy?: boolean) => void;
+        textToSpeech: (destroy?: boolean) => void;
+        speechToText: (destroy?: boolean) => void;
+    }
+    interface Options {
+        icon?: Icon;
+        hotkeys?: HotKeys;
+        buttons?: {
+            font: SizeOrPosition;
+        };
+        guide?: {
+            /** @default '#20ff69' */
+            cBorder?: string;
+            /** @default '#000000' */
+            cBackground?: string;
+            /** @default '12px' */
+            height?: string;
+        };
+        menu?: {
+            dimensions?: Dimensions;
+            fontFamily?: string;
+        };
+        labels?: Labels;
+        /** @default 'en-US' */
+        textToSpeechLang?: string;
+        /** @default 'en-US' */
+        speechToTextLang?: string;
+        /** @default false */
+        textPixelMode?: boolean;
+        /** @default true */
+        textEmlMode?: boolean;
+        animations?: {
+            /** @default true */
+            buttons?: boolean;
+        };
+        modules?: Modules;
+        session?: {
+            /** @default true */
+            persistent?: boolean;
+        };
+    }
+
+    interface Icon {
+        position?: Position;
+        dimensions?: Dimensions;
+        /** @default '9999' */
+        zIndex?: string | number;
+        /** @default '#4054b2' */
+        backgroundColor?: string;
+        /** @default '#fff' */
+        color?: string;
+        /** @default 'accessible' */
+        img?: string;
+        /** @default false */
+        circular?: boolean;
+        /** @default false */
+        circularBorder?: boolean;
+        /** @default ['https://fonts.googleapis.com/icon?family=Material+Icons'] */
+        fontFaceSrc?: string[];
+        /** @default 'Material Icons' */
+        fontFamily?: string;
+        /** @default 'Material Icons' */
+        fontClass?: string;
+        /** @default false */
+        useEmojis?: boolean;
+    }
+
+    interface Labels {
+        /** @default 'Reset' */
+        resetTitle?: string;
+        /** @default 'Close' */
+        closeTitle?: string;
+        /** @default 'Accessibility Options' */
+        menuTitle?: string;
+        /** @default 'increase text size' */
+        increaseText?: string;
+        /** @default 'decrease text size' */
+        decreaseText?: string;
+        /** @default 'increase text spacing' */
+        increaseTextSpacing?: string;
+        /** @default 'decrease text spacing' */
+        decreaseTextSpacing?: string;
+        /** @default 'invert colors' */
+        invertColors?: string;
+        /** @default 'gray hues' */
+        grayHues?: string;
+        /** @default 'gray hues' */
+        bigCursor?: string;
+        /** @default 'reading guide' */
+        readingGuide?: string;
+        /** @default 'underline links' */
+        underlineLinks?: string;
+        /** @default 'underline links' */
+        textToSpeech?: string;
+        /** @default 'speech to text' */
+        speechToText?: string;
+    }
+
+    interface Modules {
+        /** @default true */
+        increaseText?: boolean;
+        /** @default true */
+        decreaseText?: boolean;
+        /** @default true */
+        increaseTextSpacing?: boolean;
+        /** @default true */
+        decreaseTextSpacing?: boolean;
+        /** @default true */
+        invertColors?: boolean;
+        /** @default true */
+        grayHues?: boolean;
+        /** @default true */
+        bigCursor?: boolean;
+        /** @default true */
+        readingGuide?: boolean;
+        /** @default true */
+        underlineLinks?: boolean;
+        /** @default true */
+        textToSpeech?: boolean;
+        /** @default true */
+        speechToText?: true;
+    }
+
+    interface HotKeys {
+        /** @default false */
+        enabled?: boolean;
+        /** @default true */
+        helpTitles?: boolean;
+        keys?: {
+            [key: string]: HotKeyDefinition;
+        };
+    }
+
+    type HotKeyDefinition = [number, number, string];
+    interface Dimensions {
+        width?: SizeOrPosition;
+        height?: SizeOrPosition;
+    }
+
+    interface Position {
+        top?: SizeOrPosition;
+        right?: SizeOrPosition;
+        bottom?: SizeOrPosition;
+        left?: SizeOrPosition;
+        type: string;
+    }
+
+    interface SizeOrPosition {
+        size: number | string;
+        units?: string;
+    }
+}
+export = Accessibility;
diff --git a/types/accessibility/tsconfig.json b/types/accessibility/tsconfig.json
new file mode 100644
index 0000000000..f4a3b08997
--- /dev/null
+++ b/types/accessibility/tsconfig.json
@@ -0,0 +1,23 @@
+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "lib": [
+            "es6"
+        ],
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictFunctionTypes": true,
+        "strictNullChecks": true,
+        "baseUrl": "../",
+        "typeRoots": [
+            "../"
+        ],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true
+    },
+    "files": [
+        "index.d.ts",
+        "accessibility-tests.ts"
+    ]
+}
diff --git a/types/accessibility/tslint.json b/types/accessibility/tslint.json
new file mode 100644
index 0000000000..3db14f85ea
--- /dev/null
+++ b/types/accessibility/tslint.json
@@ -0,0 +1 @@
+{ "extends": "dtslint/dt.json" }