diff --git a/.eslintrc.json b/.eslintrc.json
index 895b737..b66130c 100644
--- a/.eslintrc.json
+++ b/.eslintrc.json
@@ -1,44 +1,45 @@
-{
-  "parserOptions": {
-    "ecmaVersion": 9
-  },
-  "extends": "google",
-  "rules": {
+{
+  "parserOptions": {
+    "ecmaVersion": 9
+  },
+  "extends": "google",
+  "rules": {
     "no-unused-vars": 0,
     "no-tabs": 0,
     "one-var": 0,
+    "linebreak-style": 0,
     "brace-style": ["error", "stroustrup", { "allowSingleLine": true }],
-    "max-len": 0,
-    "no-multiple-empty-lines": ["error", { "max": 1, "maxBOF": 1 }],
-    "padded-blocks": 0,
-    "curly": 0,
-    "object-curly-spacing": ["error", "always"],
-    "block-spacing": ["error", "always"],
-    "array-bracket-spacing": ["error", "always"],
-    "prefer-template": 2,
-    "new-cap": 0,
-    "guard-for-in": 0,
-    "indent": [
-      "error", "tab", {
-        "CallExpression": {
-          "arguments": 1
-        },
-        "FunctionDeclaration": {
-          "body": 1,
-          "parameters": 2
-        },
-        "FunctionExpression": {
-          "body": 1,
-          "parameters": 2
-        },
-        "MemberExpression": 2,
-        "ObjectExpression": 1,
-        "SwitchCase": 1,
-        "ignoredNodes": [
-          "ConditionalExpression",
-          "VariableDeclarator"
-        ]
-      }
-    ]
-  }
-}
+    "max-len": 0,
+    "no-multiple-empty-lines": ["error", { "max": 1, "maxBOF": 1 }],
+    "padded-blocks": 0,
+    "curly": 0,
+    "object-curly-spacing": ["error", "always"],
+    "block-spacing": ["error", "always"],
+    "array-bracket-spacing": ["error", "always"],
+    "prefer-template": 2,
+    "new-cap": 0,
+    "guard-for-in": 0,
+    "indent": [
+      "error", "tab", {
+        "CallExpression": {
+          "arguments": 1
+        },
+        "FunctionDeclaration": {
+          "body": 1,
+          "parameters": 2
+        },
+        "FunctionExpression": {
+          "body": 1,
+          "parameters": 2
+        },
+        "MemberExpression": 2,
+        "ObjectExpression": 1,
+        "SwitchCase": 1,
+        "ignoredNodes": [
+          "ConditionalExpression",
+          "VariableDeclarator"
+        ]
+      }
+    ]
+  }
+}
diff --git a/local-server.js b/local-server.js
index 4f88d6b..bb8ef80 100644
--- a/local-server.js
+++ b/local-server.js
@@ -1,90 +1,94 @@
-const htmlFiles = [
-	'header',
-	'main',
-	'dashboard/dashboard',
-	'my-addresses/my-addresses',
-	'new-address/new-address',
-	'send/send',
-	'transactions/transactions',
-	'footer',
-	'welcome/welcome',
-	'restore/restore',
-	'create-wallet/create-wallet',
-	'set-password/set-password',
-	'login/login',
-];
-
+const htmlFiles = [
+	'header',
+	'main',
+	'dashboard/dashboard',
+	'my-addresses/my-addresses',
+	'new-address/new-address',
+	'send/send',
+	'transactions/transactions',
+	'footer',
+	'welcome/welcome',
+	'restore/restore',
+	'create-wallet/create-wallet',
+	'set-password/set-password',
+	'login/login',
+];
+
 let workDir = '/src/';
 if (process.env.DIST_FOLDER) workDir = `/${process.env.DIST_FOLDER}/`;
 
 const express = require('express');
 const app = express();
 const fs = require('fs');
+const packageConfig = require('./package.json').config || {};
+
+process.env.IP = process.env.IP || packageConfig.IP;
+process.env.PORT = process.env.PORT || packageConfig.PORT;
 
 if ( ! process.env.IP || ! process.env.PORT) {
 	console.error('Need to specify IP and PORT environments (example: IP=192.168.23.42 PORT=80 node local-server.js) !');
-	process.exit();
-}
-
-let server;
-if (process.env.PORT !== '443') server = require('http').createServer(app);
-else server = require('https').createServer({
-	pfx: fs.readFileSync(`${__dirname}/localhost.pfx`),
-	passphrase: '12345',
-}, app);
-
-server.listen(process.env.PORT, process.env.IP, () => {
-	const address = server.address().address;
-	console.log(`Server running at http${process.env.PORT === '443' ? 's' : ''}://${address === '127.0.0.1' ? 'localhost' : address}:${server.address().port} from ${workDir}`);
-});
-
-app.use(express.static(__dirname + workDir));
-
-if (workDir === '/src/') {
-	const path = require('path');
-
-	const templateJs = (file) => { return `<script defer src="${file}"></script>`; };
-	const templateCss = (file) => { return `<link rel="stylesheet" href="${file}">`; };
-
-	let pathJsFiles = ``;
-	let pathCssFiles = ``;
-
-	const generatePathFiles = async (filePath = '') => {
-		const fullFilePath = workDir + filePath;
-		let files;
-		try {
-			files = fs.readdirSync(path.join(__dirname, fullFilePath));
-		}
-		catch (err) {
-			return console.error(`unable read files ${fullFilePath}:`, err);
-		}
-		for await (const file of files) {
-			const fileExt = path.extname(file).substr(1);
-			if (fileExt === 'js') pathJsFiles += templateJs(file);
-			else if (fileExt === 'css') pathCssFiles += templateCss(file);
-			else if ( ! fileExt) {
-				app.use(express.static(__dirname + fullFilePath + file));
-				generatePathFiles(filePath + file);
-			}
-		}
-	};
-
-	(async () => {
-		await generatePathFiles('../lib/');
-		await generatePathFiles();
-	})();
-
-	app.use(express.static(`${__dirname}/public/`));
-	app.use(express.static(`${__dirname}/lib/`));
-
-	app.get('/', (req, res) => {
-		let outputStr = '';
-		outputStr += pathCssFiles;
-		htmlFiles.forEach((htmlFile) => {
-			outputStr += fs.readFileSync(`${__dirname + workDir + htmlFile}.html`);
-		});
-		outputStr += pathJsFiles;
-		res.setHeader('Content-Type', 'text/html');
-		res.send(outputStr);
-	});
-}
+	process.exit();
+}
+
+let server;
+if (process.env.PORT !== '443') server = require('http').createServer(app);
+else server = require('https').createServer({
+	pfx: fs.readFileSync(`${__dirname}/localhost.pfx`),
+	passphrase: '12345',
+}, app);
+
+server.listen(process.env.PORT, process.env.IP, () => {
+	const address = server.address().address;
+	console.log(`Server running at http${process.env.PORT === '443' ? 's' : ''}://${address === '127.0.0.1' ? 'localhost' : address}:${server.address().port} from ${workDir}`);
+});
+
+app.use(express.static(__dirname + workDir));
+
+if (workDir === '/src/') {
+	const path = require('path');
+
+	const templateJs = (file) => { return `<script defer src="${file}"></script>`; };
+	const templateCss = (file) => { return `<link rel="stylesheet" href="${file}">`; };
+
+	let pathJsFiles = ``;
+	let pathCssFiles = ``;
+
+	const generatePathFiles = async (filePath = '') => {
+		const fullFilePath = workDir + filePath;
+		let files;
+		try {
+			files = fs.readdirSync(path.join(__dirname, fullFilePath));
+		}
+		catch (err) {
+			return console.error(`unable read files ${fullFilePath}:`, err);
+		}
+		for await (const file of files) {
+			const fileExt = path.extname(file).substr(1);
+			if (fileExt === 'js') pathJsFiles += templateJs(file);
+			else if (fileExt === 'css') pathCssFiles += templateCss(file);
+			else if ( ! fileExt) {
+				app.use(express.static(__dirname + fullFilePath + file));
+				generatePathFiles(filePath + file);
+			}
+		}
+	};
+
+	(async () => {
+		await generatePathFiles('../lib/');
+		await generatePathFiles();
+	})();
+
+	app.use(express.static(`${__dirname}/public/`));
+	app.use(express.static(`${__dirname}/lib/`));
+
+	app.get('/', (req, res) => {
+		let outputStr = '';
+		outputStr += pathCssFiles;
+		htmlFiles.forEach((htmlFile) => {
+			outputStr += fs.readFileSync(`${__dirname + workDir + htmlFile}.html`);
+		});
+		outputStr += pathJsFiles;
+		res.setHeader('Content-Type', 'text/html');
+		res.send(outputStr);
+	});
+}
diff --git a/package.json b/package.json
index 5bc89e4..ff14c64 100644
--- a/package.json
+++ b/package.json
@@ -1,40 +1,40 @@
-{
-  "name": "bitgesell-wallet",
-  "version": "0.9.5",
-  "description": "Bitgesell Wallet JS",
-  "homepage": "https://app.bglwallet.io",
-  "bugs": "https://github.com/epexa/bitgesell-wallet/issues",
-  "license": "Proprietary",
-  "author": "epexa",
-  "main": "local-server.js",
-  "repository": "epexa/bitgesell-wallet",
-  "config": {
-    "IP": "127.0.0.1",
-    "PORT": "80",
-    "DIST_FOLDER": "../bitgesell-wallet-dist"
-  },
+{
+  "name": "bitgesell-wallet",
+  "version": "0.9.5",
+  "description": "Bitgesell Wallet JS",
+  "homepage": "https://app.bglwallet.io",
+  "bugs": "https://github.com/epexa/bitgesell-wallet/issues",
+  "license": "Proprietary",
+  "author": "epexa",
+  "main": "local-server.js",
+  "repository": "epexa/bitgesell-wallet",
+  "config": {
+    "IP": "127.0.0.1",
+    "PORT": "80",
+    "DIST_FOLDER": "../bitgesell-wallet-dist"
+  },
   "scripts": {
-    "test": "eslint 'src/*.js'",
-    "local-server": "IP=$npm_package_config_IP PORT=$npm_package_config_PORT node local-server.js",
+    "test": "eslint src/*.js",
+    "local-server": "node local-server.js",
     "start": "npm test && npm run local-server",
-    "build": "./build.sh $npm_package_config_DIST_FOLDER",
-    "dist-start": "npm run build && DIST_FOLDER=$npm_package_config_DIST_FOLDER npm run local-server"
-  },
-  "husky": {
-    "hooks": {
-      "pre-commit": "npm test"
-    }
+    "build": "npm test && node scripts/build.js",
+    "dist-start": "npm run build && node scripts/dist-server.js"
   },
-  "devDependencies": {
-    "@babel/cli": "^7.2.3",
-    "@babel/core": "^7.4.0",
-    "@babel/preset-env": "^7.4.2",
-    "clean-css-cli": "^4.2.1",
-    "eslint": "^5.15.3",
-    "eslint-config-google": "^0.12.0",
-    "express": "^4.16.4",
-    "html-minifier": "^3.5.21",
-    "husky": "^2.3.0",
-    "uglify-js": "^3.5.2"
-  }
-}
+  "husky": {
+    "hooks": {
+      "pre-commit": "npm test"
+    }
+  },
+  "devDependencies": {
+    "@babel/cli": "^7.2.3",
+    "@babel/core": "^7.4.0",
+    "@babel/preset-env": "^7.4.2",
+    "clean-css-cli": "^4.2.1",
+    "eslint": "^5.15.3",
+    "eslint-config-google": "^0.12.0",
+    "express": "^4.16.4",
+    "html-minifier": "^3.5.21",
+    "husky": "^2.3.0",
+    "uglify-js": "^3.5.2"
+  }
+}
diff --git a/scripts/build.js b/scripts/build.js
new file mode 100644
index 0000000..69338f5
--- /dev/null
+++ b/scripts/build.js
@@ -0,0 +1,127 @@
+const fs = require('fs');
+const path = require('path');
+const { execFileSync } = require('child_process');
+
+const rootDir = path.resolve(__dirname, '..');
+const packageConfig = require('../package.json').config || {};
+const distFolder = path.resolve(
+	rootDir,
+	process.argv[2] ||
+		process.env.DIST_FOLDER ||
+		process.env.npm_package_config_DIST_FOLDER ||
+		packageConfig.DIST_FOLDER ||
+		'../bitgesell-wallet-dist',
+);
+
+const packageBin = (packageName, binName) => {
+	const packagePath = require.resolve(`${packageName}/package.json`);
+	const packageJson = require(packagePath);
+	const binConfig = packageJson.bin;
+	const binPath = typeof binConfig === 'string' ? binConfig : binConfig[binName];
+	return path.join(path.dirname(packagePath), binPath);
+};
+
+const bins = {
+	babel: packageBin('@babel/cli', 'babel'),
+	uglifyjs: packageBin('uglify-js', 'uglifyjs'),
+	'html-minifier': packageBin('html-minifier', 'html-minifier'),
+	cleancss: packageBin('clean-css-cli', 'cleancss'),
+};
+
+const run = (name, args) => {
+	execFileSync(process.execPath, [ bins[name], ...args ], {
+		cwd: rootDir,
+		stdio: 'inherit',
+	});
+};
+
+const copyRecursive = (from, to) => {
+	fs.mkdirSync(to, { recursive: true });
+	for (const entry of fs.readdirSync(from, { withFileTypes: true })) {
+		const source = path.join(from, entry.name);
+		const target = path.join(to, entry.name);
+		if (entry.isDirectory()) copyRecursive(source, target);
+		else fs.copyFileSync(source, target);
+	}
+};
+
+const src = (...parts) => path.join(rootDir, ...parts);
+const dist = (...parts) => path.join(distFolder, ...parts);
+
+fs.mkdirSync(distFolder, { recursive: true });
+copyRecursive(src('public'), distFolder);
+
+const appJs = dist('app.js');
+run('babel', [
+	src('src', 'utils.js'),
+	src('src', 'api.js'),
+	src('src', 'app.js'),
+	src('src', 'login', 'login.js'),
+	src('src', 'welcome', 'welcome.js'),
+	src('src', 'create-wallet', 'create-wallet.js'),
+	src('src', 'set-password', 'set-password.js'),
+	src('src', 'restore', 'restore.js'),
+	src('src', 'my-addresses', 'my-addresses.js'),
+	src('src', 'new-address', 'new-address.js'),
+	src('src', 'transactions', 'transactions.js'),
+	src('src', 'dashboard', 'dashboard.js'),
+	src('src', 'send', 'send.js'),
+	'-o',
+	appJs,
+]);
+
+run('uglifyjs', [
+	src('lib', '1-jquery.slim.min.js'),
+	src('lib', '2-jquery.dataTables.min.js'),
+	src('lib', '3-dataTables.bootstrap4.min.js'),
+	src('lib', '4-dataTables.responsive.min.js'),
+	src('lib', '5-responsive.bootstrap.min.js'),
+	src('lib', 'bootstrap-native.min.js'),
+	src('lib', 'sweetalert2.min.js'),
+	src('lib', 'qrcode.js'),
+	src('lib', 'satoshi-bitcoin.js'),
+	src('lib', 'aes4js.min.js'),
+	src('lib', 'dayjs.min.js'),
+	appJs,
+	'-c',
+	'drop_console=true,toplevel=true',
+	'-m',
+	'toplevel=true',
+	'-o',
+	dist('app.min.js'),
+]);
+
+fs.unlinkSync(appJs);
+
+run('html-minifier', [
+	'--collapse-whitespace',
+	'--remove-comments',
+	src('src', 'header.html'),
+	src('src', 'main.html'),
+	src('src', 'my-addresses', 'my-addresses.html'),
+	src('src', 'new-address', 'new-address.html'),
+	src('src', 'transactions', 'transactions.html'),
+	src('src', 'dashboard', 'dashboard.html'),
+	src('src', 'send', 'send.html'),
+	src('src', 'footer.html'),
+	src('src', 'welcome', 'welcome.html'),
+	src('src', 'create-wallet', 'create-wallet.html'),
+	src('src', 'restore', 'restore.html'),
+	src('src', 'set-password', 'set-password.html'),
+	src('src', 'login', 'login.html'),
+	'-o',
+	dist('index.html'),
+]);
+
+run('cleancss', [
+	src('lib', 'sweetalert2.min.css'),
+	src('lib', 'dataTables.bootstrap4.min.css'),
+	src('lib', 'responsive.bootstrap4.min.css'),
+	src('lib', 'icomoon.css'),
+	src('src', 'custom.css'),
+	'-o',
+	dist('custom.min.css'),
+	'--skip-rebase',
+]);
+
+console.log(`Built wallet assets in ${distFolder}`);
diff --git a/scripts/dist-server.js b/scripts/dist-server.js
new file mode 100644
index 0000000..34b4569
--- /dev/null
+++ b/scripts/dist-server.js
@@ -0,0 +1,5 @@
+const packageConfig = require('../package.json').config || {};
+
+process.env.DIST_FOLDER = process.env.DIST_FOLDER || packageConfig.DIST_FOLDER;
+
+require('../local-server');