diff --git a/README.md b/README.md
index e4ac6ab0..c8f182da 100644
--- a/README.md
+++ b/README.md
@@ -14,9 +14,11 @@
 
 ## Get started
 
-- Online version: [https://privacy.sexy](https://privacy.sexy)
-  - or download latest desktop version for [Windows](https://github.com/undergroundwires/privacy.sexy/releases/download/0.9.2/privacy.sexy-Setup-0.9.2.exe), [Linux](https://github.com/undergroundwires/privacy.sexy/releases/download/0.9.2/privacy.sexy-0.9.2.AppImage), [macOS](https://github.com/undergroundwires/privacy.sexy/releases/download/0.9.2/privacy.sexy-0.9.2.dmg)
-- 💡 Come back regularly to apply latest version for stronger privacy and security.
+- Online version at [https://privacy.sexy](https://privacy.sexy)
+  - 💡 No need to run any compiled software on your computer.
+- Alternatively download offline version for [Windows](https://github.com/undergroundwires/privacy.sexy/releases/download/0.9.2/privacy.sexy-Setup-0.9.2.exe), [macOS](https://github.com/undergroundwires/privacy.sexy/releases/download/0.9.2/privacy.sexy-0.9.2.dmg) or [Linux](https://github.com/undergroundwires/privacy.sexy/releases/download/0.9.2/privacy.sexy-0.9.2.AppImage).
+  - 💡 Single click to execute your script.
+- ❗ Come back regularly to apply latest version for stronger privacy and security.
 
 [![privacy.sexy application](img/screenshot.png)](https://privacy.sexy)
 
diff --git a/src/infrastructure/Clipboard.ts b/src/infrastructure/Clipboard.ts
index a871d4a6..35519c5e 100644
--- a/src/infrastructure/Clipboard.ts
+++ b/src/infrastructure/Clipboard.ts
@@ -1,4 +1,3 @@
-
 export class Clipboard {
     public static copyText(text: string): void {
         const el = document.createElement('textarea');
diff --git a/src/infrastructure/CodeRunner.ts b/src/infrastructure/CodeRunner.ts
new file mode 100644
index 00000000..15fb86ec
--- /dev/null
+++ b/src/infrastructure/CodeRunner.ts
@@ -0,0 +1,69 @@
+import { Environment } from '@/application/Environment/Environment';
+import os from 'os';
+import path from 'path';
+import fs from 'fs';
+import child_process from 'child_process';
+import { OperatingSystem } from '@/domain/OperatingSystem';
+
+export async function runCodeAsync(
+    code: string, folderName: string, fileExtension: string,
+    node = getNodeJs(), environment = Environment.CurrentEnvironment): Promise<void> {
+    const dir = node.path.join(node.os.tmpdir(), folderName);
+    await node.fs.promises.mkdir(dir, {recursive: true});
+    const filePath = node.path.join(dir, `run.${fileExtension}`);
+    await node.fs.promises.writeFile(filePath, code);
+    await node.fs.promises.chmod(filePath, '755');
+    const command = getExecuteCommand(filePath, environment);
+    node.child_process.exec(command);
+}
+
+function getExecuteCommand(scriptPath: string, environment: Environment): string {
+    switch (environment.os) {
+        case OperatingSystem.macOS:
+            return `open -a Terminal.app ${scriptPath}`;
+            // Another option with graphical sudo would be
+            //  `osascript -e "do shell script \\"${scriptPath}\\" with administrator privileges"`
+            // However it runs in background
+        case OperatingSystem.Windows:
+            return scriptPath;
+        default:
+            throw Error('undefined os');
+    }
+}
+
+function getNodeJs(): INodeJs {
+    return { os, path, fs, child_process };
+}
+
+export interface INodeJs {
+    os: INodeOs;
+    path: INodePath;
+    fs: INodeFs;
+    child_process: INodeChildProcess;
+}
+
+export interface INodeOs {
+    tmpdir(): string;
+}
+
+export interface INodePath {
+    join(...paths: string[]): string;
+}
+
+export interface INodeChildProcess {
+    exec(command: string): void;
+}
+
+export interface INodeFs {
+    readonly promises: INodeFsPromises;
+}
+
+interface INodeFsPromisesMakeDirectoryOptions {
+    recursive?: boolean;
+}
+
+interface INodeFsPromises { // https://github.com/DefinitelyTyped/DefinitelyTyped/blob/master/types/node/v13/fs.d.ts
+    chmod(path: string, mode: string | number): Promise<void>;
+    mkdir(path: string, options: INodeFsPromisesMakeDirectoryOptions): Promise<string>;
+    writeFile(path: string, data: string): Promise<void>;
+}
diff --git a/src/presentation/Bootstrapping/Modules/IconBootstrapper.ts b/src/presentation/Bootstrapping/Modules/IconBootstrapper.ts
index 4762bd5a..94833f50 100644
--- a/src/presentation/Bootstrapping/Modules/IconBootstrapper.ts
+++ b/src/presentation/Bootstrapping/Modules/IconBootstrapper.ts
@@ -7,8 +7,7 @@ import { FontAwesomeIcon } from '@fortawesome/vue-fontawesome';
 import { faFolderOpen, faFolder, faSmile } from '@fortawesome/free-regular-svg-icons';
 /** SOLID ICONS (PREFIX: fas (default)) */
 import { faTimes, faFileDownload, faCopy, faSearch, faInfoCircle, faUserSecret, faDesktop,
-    faTag, faGlobe, faSave, faBatteryFull, faBatteryHalf } from '@fortawesome/free-solid-svg-icons';
-
+    faTag, faGlobe, faSave, faBatteryFull, faBatteryHalf, faPlay } from '@fortawesome/free-solid-svg-icons';
 
 export class IconBootstrapper implements IVueBootstrapper {
     public bootstrap(vue: VueConstructor): void {
@@ -24,6 +23,7 @@ export class IconBootstrapper implements IVueBootstrapper {
             faTimes,
             faFileDownload, faSave,
             faCopy,
+            faPlay,
             faSearch,
             faBatteryFull, faBatteryHalf,
             faInfoCircle);
diff --git a/src/presentation/CodeButtons/MacOsInstructions.vue b/src/presentation/CodeButtons/MacOsInstructions.vue
index 17fd1360..19ddb638 100644
--- a/src/presentation/CodeButtons/MacOsInstructions.vue
+++ b/src/presentation/CodeButtons/MacOsInstructions.vue
@@ -1,8 +1,8 @@
 <template>
     <div class="instructions">
-        <!-- <p>
+        <p>
             Since you're using online version of {{ this.appName }}, you will need to do additional steps after downloading the file to execute your script on macOS:
-        </p> -->
+        </p>
         <p>
             <ol>
                 <li>
@@ -73,9 +73,9 @@
                 </li>
             </ol>
         </p>
-        <!-- <p>
+        <p>
             Or download the <a :href="this.macOsDownloadUrl">offline version</a> to run your scripts directly to skip these steps.
-        </p> -->
+        </p>
     </div>
 </template>
 
diff --git a/src/presentation/CodeButtons/TheCodeButtons.vue b/src/presentation/CodeButtons/TheCodeButtons.vue
index f358c114..99f50aac 100644
--- a/src/presentation/CodeButtons/TheCodeButtons.vue
+++ b/src/presentation/CodeButtons/TheCodeButtons.vue
@@ -1,5 +1,11 @@
 <template>
     <div class="container" v-if="hasCode">
+        <IconButton
+            v-if="this.canRun"
+            text="Run"
+            v-on:click="executeCodeAsync"
+            icon-prefix="fas" icon-name="play">
+        </IconButton>
         <IconButton
             :text="this.isDesktopVersion ? 'Save' : 'Download'"
             v-on:click="saveCodeAsync"
@@ -38,6 +44,8 @@ import { ScriptingLanguage } from '@/domain/ScriptingLanguage';
 import { IApplicationCode } from '@/application/Context/State/Code/IApplicationCode';
 import { IScriptingDefinition } from '@/domain/IScriptingDefinition';
 import { OperatingSystem } from '@/domain/OperatingSystem';
+import { runCodeAsync } from '@/infrastructure/CodeRunner';
+import { IApplicationContext } from '@/application/Context/IApplicationContext';
 
 @Component({
   components: {
@@ -48,8 +56,9 @@ import { OperatingSystem } from '@/domain/OperatingSystem';
 export default class TheCodeButtons extends StatefulVue {
   public readonly macOsModalName = 'macos-instructions';
 
+  public readonly isDesktopVersion = Environment.CurrentEnvironment.isDesktop;
+  public canRun = false;
   public hasCode = false;
-  public isDesktopVersion = Environment.CurrentEnvironment.isDesktop;
   public isMacOsCollection = false;
   public fileName = '';
 
@@ -64,8 +73,13 @@ export default class TheCodeButtons extends StatefulVue {
       this.$modal.show(this.macOsModalName);
     }
   }
+  public async executeCodeAsync() {
+    const context = await this.getCurrentContextAsync();
+    await executeCodeAsync(context);
+  }
 
   protected handleCollectionState(newState: ICategoryCollectionState): void {
+    this.canRun = this.isDesktopVersion && newState.collection.os === Environment.CurrentEnvironment.os;
     this.isMacOsCollection = newState.collection.os === OperatingSystem.macOS;
     this.fileName = buildFileName(newState.collection.scripting);
     this.react(newState.code);
@@ -108,6 +122,15 @@ function buildFileName(scripting: IScriptingDefinition) {
   }
   return fileName;
 }
+
+async function executeCodeAsync(context: IApplicationContext) {
+    await runCodeAsync(
+        /*code*/ context.state.code.current,
+        /*appName*/ context.app.info.name,
+        /*fileExtension*/ context.state.collection.scripting.fileExtension,
+      );
+}
+
 </script>
 
 <style scoped lang="scss">
diff --git a/tests/unit/infrastructure/CodeRunner.spec.ts b/tests/unit/infrastructure/CodeRunner.spec.ts
new file mode 100644
index 00000000..42352046
--- /dev/null
+++ b/tests/unit/infrastructure/CodeRunner.spec.ts
@@ -0,0 +1,249 @@
+import { EnvironmentStub } from './../stubs/EnvironmentStub';
+import { OperatingSystem } from '@/domain/OperatingSystem';
+import 'mocha';
+import { expect } from 'chai';
+import { runCodeAsync } from '@/infrastructure/CodeRunner';
+
+describe('CodeRunner', () => {
+    describe('runCodeAsync', () => {
+        it('creates temporary directory recursively', async () => {
+            // arrange
+            const expectedDir = 'expected-dir';
+            const folderName = 'privacy.sexy';
+            const context = new TestContext();
+            context.mocks.os.setupTmpdir('tmp');
+            context.mocks.path.setupJoin(expectedDir, 'tmp', folderName);
+
+            // act
+            await context
+                .withFolderName(folderName)
+                .runCodeAsync();
+
+            // assert
+            expect(context.mocks.fs.mkdirHistory.length).to.equal(1);
+            expect(context.mocks.fs.mkdirHistory[0].isRecursive).to.equal(true);
+            expect(context.mocks.fs.mkdirHistory[0].path).to.equal(expectedDir);
+        });
+        it('creates a file with expected code and path', async () => {
+            // arrange
+            const expectedCode = 'expected-code';
+            const expectedFilePath = 'expected-file-path';
+
+            const extension = '.sh';
+            const expectedName = `run.${extension}`;
+            const folderName = 'privacy.sexy';
+            const context = new TestContext();
+            context.mocks.os.setupTmpdir('tmp');
+            context.mocks.path.setupJoin('folder', 'tmp', folderName);
+            context.mocks.path.setupJoin(expectedFilePath, 'folder', expectedName);
+
+            // act
+            await context
+                .withCode(expectedCode)
+                .withFolderName(folderName)
+                .withExtension(extension)
+                .runCodeAsync();
+
+            // assert
+            expect(context.mocks.fs.writeFileHistory.length).to.equal(1);
+            expect(context.mocks.fs.writeFileHistory[0].data).to.equal(expectedCode);
+            expect(context.mocks.fs.writeFileHistory[0].path).to.equal(expectedFilePath);
+        });
+        it('set file permissions as expected', async () => {
+            // arrange
+            const expectedMode = '755';
+            const expectedFilePath = 'expected-file-path';
+
+            const extension = '.sh';
+            const expectedName = `run.${extension}`;
+            const folderName = 'privacy.sexy';
+            const context = new TestContext();
+            context.mocks.os.setupTmpdir('tmp');
+            context.mocks.path.setupJoin('folder', 'tmp', folderName);
+            context.mocks.path.setupJoin(expectedFilePath, 'folder', expectedName);
+
+            // act
+            await context
+                .withFolderName(folderName)
+                .withExtension(extension)
+                .runCodeAsync();
+
+            // assert
+            expect(context.mocks.fs.chmodCallHistory.length).to.equal(1);
+            expect(context.mocks.fs.chmodCallHistory[0].mode).to.equal(expectedMode);
+            expect(context.mocks.fs.chmodCallHistory[0].path).to.equal(expectedFilePath);
+        });
+        describe('executes as expected', () => {
+            // arrange
+            const filePath = 'expected-file-path';
+            const testData = [ {
+                os: OperatingSystem.Windows,
+                expected: filePath,
+            }, {
+                os: OperatingSystem.macOS,
+                expected: `open -a Terminal.app ${filePath}`,
+            }];
+            for (const data of testData) {
+                it(`returns ${data.expected} on ${OperatingSystem[data.os]}`, async () => {
+                    const context = new TestContext();
+                    context.mocks.os.setupTmpdir('non-important-temp-dir-name');
+                    context.mocks.path.setupJoinSequence('non-important-folder-name', filePath);
+                    context.withOs(data.os);
+
+                    // act
+                    await context
+                        .withOs(data.os)
+                        .runCodeAsync();
+
+                    // assert
+                    expect(context.mocks.child_process.executionHistory.length).to.equal(1);
+                    expect(context.mocks.child_process.executionHistory[0]).to.equal(data.expected);
+                });
+            }
+        });
+        it('runs in expected order', async () => {
+            // arrange
+            const expectedOrder = [ NodeJsCommand.mkdir, NodeJsCommand.writeFile, NodeJsCommand.chmod ];
+            const context = new TestContext();
+            context.mocks.os.setupTmpdir('non-important-temp-dir-name');
+            context.mocks.path.setupJoinSequence('non-important-folder-name1', 'non-important-folder-name2');
+
+            // act
+            await context.runCodeAsync();
+
+            // assert
+            const actualOrder = context.mocks.commandHistory.filter((command) => expectedOrder.includes(command));
+            expect(expectedOrder).to.deep.equal(actualOrder);
+        });
+    });
+});
+
+class TestContext {
+    public mocks = getNodeJsMocks();
+
+    private code: string = 'code';
+    private folderName: string = 'folderName';
+    private fileExtension: string = 'fileExtension';
+    private env = mockEnvironment(OperatingSystem.Windows);
+
+    public async runCodeAsync(): Promise<void> {
+        await runCodeAsync(this.code, this.folderName, this.fileExtension, this.mocks, this.env);
+    }
+    public withOs(os: OperatingSystem) {
+        this.env = mockEnvironment(os);
+        return this;
+    }
+    public withFolderName(folderName: string) {
+        this.folderName = folderName;
+        return this;
+    }
+    public withCode(code: string) {
+        this.code = code;
+        return this;
+    }
+    public withExtension(fileExtension: string) {
+        this.fileExtension = fileExtension;
+        return this;
+    }
+}
+
+function mockEnvironment(os: OperatingSystem) {
+    return new EnvironmentStub().withOs(os);
+}
+
+const enum NodeJsCommand { tmpdir, join, exec, mkdir, writeFile, chmod }
+
+function getNodeJsMocks() {
+    const commandHistory = new Array<NodeJsCommand>();
+    return {
+        os: mockOs(commandHistory),
+        path: mockPath(commandHistory),
+        fs: mockNodeFs(commandHistory),
+        child_process: mockChildProcess(commandHistory),
+        commandHistory,
+    };
+}
+
+function mockOs(commandHistory: NodeJsCommand[]) {
+    let tmpDir: string;
+    return {
+        setupTmpdir: (value: string): void => {
+            tmpDir = value;
+        },
+        tmpdir: (): string => {
+            if (!tmpDir) {
+                throw new Error('tmpdir not set up');
+            }
+            commandHistory.push(NodeJsCommand.tmpdir);
+            return tmpDir;
+        },
+    };
+}
+
+function mockPath(commandHistory: NodeJsCommand[]) {
+    const sequence = new Array<string>();
+    const scenarios = new Map<string, string>();
+    const getScenarioKey = (paths: string[]) => paths.join('|');
+    return {
+        setupJoin: (returnValue: string, ...paths: string[]): void => {
+            scenarios.set(getScenarioKey(paths), returnValue);
+        },
+        setupJoinSequence: (...valuesToReturn: string[]): void => {
+            sequence.push(...valuesToReturn);
+            sequence.reverse();
+        },
+        join: (...paths: string[]): string => {
+            commandHistory.push(NodeJsCommand.join);
+            if (sequence.length > 0) {
+                return sequence.pop();
+            }
+            const key = getScenarioKey(paths);
+            if (!scenarios.has(key)) {
+                return paths.join('/');
+            }
+            return scenarios.get(key);
+        },
+    };
+}
+
+function mockChildProcess(commandHistory: NodeJsCommand[]) {
+    const executionHistory = new Array<string>();
+    return {
+        exec: (command: string): void => {
+            commandHistory.push(NodeJsCommand.exec);
+            executionHistory.push(command);
+        },
+        executionHistory,
+    };
+}
+
+function mockNodeFs(commandHistory: NodeJsCommand[]) {
+    interface IMkdirCall { path: string; isRecursive: boolean; }
+    interface IWriteFileCall { path: string; data: string; }
+    interface IChmodCall { path: string; mode: string | number; }
+    const mkdirHistory = new Array<IMkdirCall>();
+    const writeFileHistory = new Array<IWriteFileCall>();
+    const chmodCallHistory = new Array<IChmodCall>();
+    return {
+        promises: {
+            mkdir: (path, options) => {
+                commandHistory.push(NodeJsCommand.mkdir);
+                mkdirHistory.push({ path, isRecursive: options && options.recursive });
+                return Promise.resolve(path);
+            },
+            writeFile: (path, data) => {
+                commandHistory.push(NodeJsCommand.writeFile);
+                writeFileHistory.push({ path, data });
+                return Promise.resolve();
+            },
+            chmod: (path, mode) => {
+                commandHistory.push(NodeJsCommand.chmod);
+                chmodCallHistory.push({ path, mode });
+                return Promise.resolve();
+            },
+        },
+        mkdirHistory,
+        writeFileHistory,
+        chmodCallHistory,
+    };
+}