diff --git a/app.js b/app.js
index e8d5b5f..e4f0ca8 100644
--- a/app.js
+++ b/app.js
@@ -1,5 +1,5 @@
-const koa = require('koa');
-const app = new koa();
+const Koa = require('koa');
+const app = new Koa();
 const config = require('config');
 const path = require('path');
 const router = require('./router');
diff --git a/controllers/pastes.js b/controllers/pastes.js
index 9290929..f8f92cb 100644
--- a/controllers/pastes.js
+++ b/controllers/pastes.js
@@ -32,11 +32,12 @@ module.exports = {
 			} else {
 				ctx.body = paste.paste;
 			}
-		} catch (ex) {
+		} catch {
 			ctx.throw(404, 'Paste Not Found');
 		}
 	},
 
+	/* eslint-disable-next-line complexity */
 	async create(ctx) {
 		ctx.set('Cache-Control', 'no-cache');
 
@@ -60,10 +61,10 @@ module.exports = {
 
 				try {
 					await fs.unlink(path);
-				} catch (ex) {
+				} catch {
 					// Ignore
 				}
-			} catch (ex) {
+			} catch {
 				ctx.throw(400, 'Bad Paste Body');
 			}
 		}
@@ -71,9 +72,9 @@ module.exports = {
 		// Expiry multiplier
 		try {
 			if (ctx.request.body.expire && ctx.request.body.multiplier) {
-				ctx.request.body.expire = ctx.request.body.expire * ctx.request.body.multiplier;
+				ctx.request.body.expire *= ctx.request.body.multiplier;
 			}
-		} catch (ex) {
+		} catch {
 			ctx.throw(400, 'Bad Paste Expiry');
 		}
 
@@ -100,7 +101,7 @@ module.exports = {
 
 		const paste = new Paste({
 			paste: ctx.request.body.paste,
-			expiresAt: new Date(Date.now() + ctx.request.body.expire * 1000)
+			expiresAt: new Date(Date.now() + (ctx.request.body.expire * 1000))
 		});
 
 		try {
@@ -116,7 +117,7 @@ module.exports = {
 
 		// /?xxx
 		if (!ctx.request.body.highlight && !ctx.query.highlight && ctx.query) {
-			ctx.request.body.highlight = Object.keys(ctx.query).filter(k => k != 'redirect' && k != 'expire')[0];
+			ctx.request.body.highlight = Object.keys(ctx.query).filter((k) => k !== 'redirect' && k !== 'expire')[0];
 		}
 
 		let highlight = '';
diff --git a/docker-compose.yml b/docker-compose.yml
index 67b7ad9..4178292 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -3,25 +3,25 @@ version: "3"
 services:
   app:
     image: node:latest
-    command: "npm start"
+    command: npm start
     restart: unless-stopped
     working_dir: /app
     depends_on:
-     - db
+      - db
     environment:
       - NODE_ENV=production
       - NODE_CONFIG_ENV=docker
     volumes:
-     - .:/app:Z
+      - .:/app:Z
     ports:
-     - "80:80"
+      - "80:80"
 
   db:
     image: mongo:latest
     restart: unless-stopped
     volumes:
-     - ./db:/data/db:Z
+      - ./db:/data/db:Z
     expose:
-     - 27017
+      - 27017
     ports:
-     - "27017:27017"
+      - "27017:27017"
diff --git a/package.json b/package.json
index 1a43d15..d5ca0a3 100644
--- a/package.json
+++ b/package.json
@@ -12,6 +12,8 @@
   },
   "keywords": [
     "pastebin",
+    "text upload",
+    "text paste",
     "paste",
     "koa",
     "mongodb"
@@ -42,7 +44,7 @@
   "devDependencies": {
     "eclint": "^2.8.1",
     "nodemon": "^2.0.4",
-    "pug-lint": "^2.6.0"
+    "pug-lint": "^2.6.0",
     "xo": "^0.32.1"
   }
 }
diff --git a/prism-langs.js b/prism-langs.js
index ff60e5a..df2e9a6 100644
--- a/prism-langs.js
+++ b/prism-langs.js
@@ -3,11 +3,11 @@
 const https = require('https');
 
 // Match version number to included copy
-https.get('https://raw.githubusercontent.com/PrismJS/prism/v1.20.0/components.json', res => {
+https.get('https://raw.githubusercontent.com/PrismJS/prism/v1.20.0/components.json', (res) => {
 	res.setEncoding('utf8');
 
 	let body = '';
-	res.on('data', data => {
+	res.on('data', (data) => {
 		body += data;
 	});
 
@@ -17,15 +17,17 @@ https.get('https://raw.githubusercontent.com/PrismJS/prism/v1.20.0/components.js
 		const highlights = {};
 
 		// Split markup
-		for (let id in components.languages.markup.aliasTitles) {
+		for (const id in components.languages.markup.aliasTitles) {
+			if (!Object.prototype.hasOwnProperty.call(components.languages.markup.aliasTitles, id)) continue;
+
 			components.languages[id] = {
 				title: components.languages.markup.aliasTitles[id]
 			};
 		}
 
-		for (let id in components.languages) {
-			if (id == 'meta') continue;
-			if (id == 'markup') continue;
+		for (const id in components.languages) {
+			if (id === 'meta') continue;
+			if (id === 'markup') continue;
 
 			const lang = components.languages[id];
 			const name = lang.title || lang;
@@ -41,10 +43,10 @@ https.get('https://raw.githubusercontent.com/PrismJS/prism/v1.20.0/components.js
 			}
 
 			highlights[id] = {
-				name: name
+				name
 			};
 
-			if (contents.length) {
+			if (contents.length > 0) {
 				highlights[id].alias = contents;
 			}
 		}
@@ -68,8 +70,6 @@ https.get('https://raw.githubusercontent.com/PrismJS/prism/v1.20.0/components.js
 		highlights.json.alias = ['javascript object notation'];
 		highlights.json5.alias = ['javascript object notation'];
 		highlights.jsonp.alias = ['javascript object notation'];
-		// highlights.jsstacktrace.name = 'JavaScript stack trace';
-		// highlights.jsstacktrace.alias.push('javascript'];
 		highlights.nasm.alias = ['assembly'];
 		highlights.protobuf.alias = ['protobuf'];
 		highlights.pug.alias = ['jade'];
@@ -83,7 +83,7 @@ https.get('https://raw.githubusercontent.com/PrismJS/prism/v1.20.0/components.js
 
 		// Sort
 		const ordered = {};
-		Object.keys(highlights).sort().forEach(function(key) {
+		Object.keys(highlights).sort().forEach((key) => {
 			ordered[key] = highlights[key];
 		});
 
diff --git a/public/main.js b/public/main.js
index 2a3f9de..3e9a8cc 100644
--- a/public/main.js
+++ b/public/main.js
@@ -1,9 +1,6 @@
-/* eslint-env browser */
-/* global $ autosize */
-
-$(function() {
-	if (localStorage.getItem('expire-value') != null) $('input#expire').val(localStorage.getItem('expire-value'));
-	if (localStorage.getItem('expire-multiplier') != null) $('#multiplier').val(localStorage.getItem('expire-multiplier'));
+$(() => {
+	if (localStorage.getItem('expire-value') !== null) $('input#expire').val(localStorage.getItem('expire-value'));
+	if (localStorage.getItem('expire-multiplier') !== null) $('#multiplier').val(localStorage.getItem('expire-multiplier'));
 
 	$.fn.selectpicker.Constructor.BootstrapVersion = '4';
 
@@ -22,25 +19,23 @@ $(function() {
 	});
 
 	$('textarea').on('keydown', function(e) {
-		if ((e.keyCode == 10 || e.keyCode == 13) && e.ctrlKey && $(this).val()) {
+		if ((e.keyCode === 10 || e.keyCode === 13) && e.ctrlKey && $(this).val()) {
 			$(this).closest('form').submit();
 		}
 	});
 
-	$('input#expire').on('change', function(e) {
+	$('input#expire').on('change', (e) => {
 		var value = $(e.target).val();
 
-		$('#multiplier option').text(function(_, t) {
-			var plural = t.substring(t.length - 1) == 's';
+		$('#multiplier option').text((_, t) => {
+			var plural = t.slice(Math.max(0, t.length - 1)) === 's';
 
 			if (value > 1) {
 				if (!plural) {
 					return t + 's';
 				}
-			} else {
-				if (plural) {
-					return t.slice(0, -1);
-				}
+			} else if (plural) {
+				return t.slice(0, -1);
 			}
 
 			return t;
@@ -49,22 +44,22 @@ $(function() {
 		localStorage.setItem('expire-value', value);
 	});
 
-	$('#multiplier').on('change', function(e) {
+	$('#multiplier').on('change', (e) => {
 		localStorage.setItem('expire-multiplier', $(e.target).val());
 	});
 
 	$('select#highlight').on('change', function() {
-		if ($(this).val() == '') {
+		if ($(this).val() === '') {
 			history.pushState({}, '', '/');
 		} else {
 			location.hash = $(this).val();
 		}
 	});
 
-	$(window).on('hashchange', function() {
+	$(window).on('hashchange', () => {
 		var value = location.hash.slice(1);
 
-		if (value && $('select#highlight option[value=' + value + ']').length) {
+		if (value && $('select#highlight option[value=' + value + ']').length > 0) {
 			$('select#highlight').selectpicker('val', value);
 		} else {
 			$('select#highlight').selectpicker('val', '');