diff --git a/README.md b/README.md
index 7a2e4d01..e13c82f8 100644
--- a/README.md
+++ b/README.md
@@ -256,7 +256,7 @@ in the appropriate channel's topic to use it.
 
 ## Commands
 
-Total: 544
+Total: 547
 
 ### Utility:
 
@@ -829,6 +829,12 @@ Total: 544
 * **phone-info:** Gives information on the current phone call.
 * **phone:** Starts a phone call with a random server.
 
+### Coding Tools:
+
+* **beautify:** Beautifies code with js-beautify.
+* **lint-rule:** Responds with information on an ESLint rule.
+* **lint:** Lints code using ESLint.
+
 ### Other:
 
 * **cleverbot:** Talk to Cleverbot. (Owner-Only)
diff --git a/Xiao.js b/Xiao.js
index 992c9b47..626aabd3 100644
--- a/Xiao.js
+++ b/Xiao.js
@@ -36,6 +36,7 @@ client.registry
 		['edit-number', 'Number Manipulation'],
 		['voice', 'Voice-Based'],
 		['phone', 'Phone'],
+		['code', 'Coding Tools'],
 		['other', 'Other'],
 		['roleplay', 'Roleplay']
 	])
diff --git a/assets/json/activity.json b/assets/json/activity.json
index 1a74d084..f50fc1b7 100644
--- a/assets/json/activity.json
+++ b/assets/json/activity.json
@@ -46,5 +46,9 @@
 	{
 		"text": "with a murderous cow",
 		"type": "PLAYING"
+	},
+	{
+		"text": "with a linter",
+		"type": "PLAYING"
 	}
 ]
diff --git a/assets/json/lint.json b/assets/json/lint.json
new file mode 100644
index 00000000..8785fb80
--- /dev/null
+++ b/assets/json/lint.json
@@ -0,0 +1,41 @@
+{
+	"goodMessages": [
+		"It's all good fam.",
+		"Nice job.",
+		"Great code.",
+		"I like.",
+		"Nice code, bro.",
+		"Nice code!",
+		"Always a pleasure to see good and nice code."
+	],
+	"badMessages": [
+		"I think you may want to take a second look.",
+		"Looks like you have some problems!",
+		"Did you lint your code?",
+		"Get a linter bro.",
+		"Uh oh!",
+		"I don't like this code.",
+		"BAD!",
+		"Did you try to copy that off of GitHub?",
+		"Do you know JS?",
+		"smh",
+		"no",
+		"You are dumb because:",
+		"You tried, but failed miserably.",
+		"What a noob."
+	],
+	"defaultConfig": {
+		"extends": "eslint:recommended",
+		"parserOptions": {
+			"ecmaVersion": 2020,
+			"sourceType": "module"
+		},
+		"env": {
+			"es6": true,
+			"node": true
+		},
+		"rules": {
+			"no-console": 0
+		}
+	}
+}
diff --git a/commands/code/beautify.js b/commands/code/beautify.js
new file mode 100644
index 00000000..718cdf16
--- /dev/null
+++ b/commands/code/beautify.js
@@ -0,0 +1,31 @@
+const Command = require('../../structures/Command');
+const { js_beautify: beautify } = require('js-beautify');
+const { stripIndents } = require('common-tags');
+
+module.exports = class BeautifyCommand extends Command {
+	constructor(client) {
+		super(client, {
+			name: 'beautify',
+			aliases: ['js-beautify'],
+			group: 'code',
+			memberName: 'lint',
+			description: 'Beautifies code with js-beautify.',
+			clientPermissions: ['READ_MESSAGE_HISTORY'],
+			args: [
+				{
+					key: 'code',
+					prompt: 'What code do you want to beautify?',
+					type: 'code'
+				}
+			]
+		});
+	}
+
+	async run(msg, { code }) {
+		return msg.reply(stripIndents`
+			\`\`\`${code.lang || 'js'}
+			${beautify(code.code)}
+			\`\`\`
+		`);
+	}
+};
diff --git a/commands/code/lint-rule.js b/commands/code/lint-rule.js
new file mode 100644
index 00000000..e6f43be9
--- /dev/null
+++ b/commands/code/lint-rule.js
@@ -0,0 +1,38 @@
+const Command = require('../../structures/Command');
+const { MessageEmbed } = require('discord.js');
+const { Linter } = require('eslint');
+const linter = new Linter();
+const rules = linter.getRules();
+
+module.exports = class LintRuleCommand extends Command {
+	constructor(client) {
+		super(client, {
+			name: 'lint-rule',
+			aliases: ['eslint-rule'],
+			group: 'code',
+			memberName: 'lint-rule',
+			description: 'Responds with information on an ESLint rule.',
+			clientPermissions: ['EMBED_LINKS'],
+			args: [
+				{
+					key: 'rule',
+					prompt: 'Which rule would you like to get information on?',
+					type: 'string',
+					parse: rule => rule.toLowerCase().replace(/ /g, '-')
+				}
+			]
+		});
+	}
+
+	run(msg, { rule }) {
+		if (!rules.has(rule)) return msg.say('Could not find any results.');
+		const data = rules.get(rule).meta;
+		const embed = new MessageEmbed()
+			.setAuthor('ESLint', 'https://i.imgur.com/04GhEhU.png', 'https://eslint.org/')
+			.setColor(0x3A33D1)
+			.setTitle(`${rule} (${data.docs.category})`)
+			.setURL(`https://eslint.org/docs/rules/${rule}`)
+			.setDescription(data.docs.description);
+		return msg.embed(embed);
+	}
+};
diff --git a/commands/code/lint.js b/commands/code/lint.js
new file mode 100644
index 00000000..460dcc0c
--- /dev/null
+++ b/commands/code/lint.js
@@ -0,0 +1,50 @@
+const Command = require('../../structures/Command');
+const { Linter } = require('eslint');
+const linter = new Linter();
+const { stripIndents } = require('common-tags');
+const { trimArray } = require('../../util/Util');
+const { goodMessages, badMessages, defaultConfig } = require('../../assets/json/lint');
+
+module.exports = class LintCommand extends Command {
+	constructor(client) {
+		super(client, {
+			name: 'lint',
+			aliases: ['eslint'],
+			group: 'code',
+			memberName: 'lint',
+			description: 'Lints code using ESLint.',
+			clientPermissions: ['READ_MESSAGE_HISTORY'],
+			args: [
+				{
+					key: 'code',
+					prompt: 'What code do you want to lint?',
+					type: 'code'
+				}
+			]
+		});
+	}
+
+	async run(msg, { code }) {
+		if (!code.lang || ['js', 'javascript'].includes(code.lang)) {
+			const errors = linter.verify(code.code, defaultConfig);
+			if (!errors.length) return msg.reply(goodMessages[Math.floor(Math.random() * goodMessages.length)]);
+			const errorMap = trimArray(errors.map(err => `\`[${err.line}:${err.column}] ${err.message}\``));
+			return msg.reply(stripIndents`
+				${badMessages[Math.floor(Math.random() * badMessages.length)]}
+				${errorMap.join('\n')}
+			`);
+		}
+		if (code.lang === 'json') {
+			try {
+				JSON.parse(code.code);
+				return msg.reply(goodMessages[Math.floor(Math.random() * goodMessages.length)]);
+			} catch (err) {
+				return msg.reply(stripIndents`
+					${badMessages[Math.floor(Math.random() * badMessages.length)]}
+					\`${err.name}: ${err.message}\`
+				`);
+			}
+		}
+		return msg.reply('I don\'t know how to lint that language.');
+	}
+};
diff --git a/package.json b/package.json
index d67de556..07ecacf6 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "xiao",
-	"version": "119.27.1",
+	"version": "119.28.0",
 	"description": "Your personal server companion.",
 	"main": "Xiao.js",
 	"scripts": {
@@ -44,8 +44,10 @@
 		"discord.js": "^12.3.1",
 		"discord.js-commando": "github:discordjs/Commando",
 		"dotenv": "^8.2.0",
+		"eslint": "^7.10.0",
 		"gifencoder": "^2.0.1",
 		"gm": "^1.23.1",
+		"js-beautify": "^1.13.0",
 		"mathjs": "^7.3.0",
 		"moment": "^2.29.0",
 		"moment-duration-format": "^2.3.2",
@@ -62,7 +64,6 @@
 		"utf-8-validate": "^5.0.2"
 	},
 	"devDependencies": {
-		"eslint": "^7.10.0",
 		"eslint-config-amber": "^2.0.3",
 		"eslint-plugin-json": "^2.1.2"
 	},
diff --git a/types/code.js b/types/code.js
new file mode 100644
index 00000000..c59c00e2
--- /dev/null
+++ b/types/code.js
@@ -0,0 +1,33 @@
+const { ArgumentType } = require('discord.js-commando');
+const codeblock = /```(?:(\S+)\n)?\s*([^]+?)\s*```/i;
+
+module.exports = class CodeArgumentType extends ArgumentType {
+	constructor(client) {
+		super(client, 'code');
+	}
+
+	async validate(value) {
+		if (!value) return false;
+		return true;
+	}
+
+	parse(value) {
+		if (!value) return null;
+		if (/^[0-9]+$/.test(value)) {
+			try {
+				const message = await msg.channel.messages.fetch(value);
+				value = message.content;
+			} catch (err) {
+				return { code: value, lang: null };
+			}
+		}
+		if (codeblock.test(value)) {
+			const parsed = codeblock.exec(value);
+			return {
+				code: parsed[2],
+				lang: parsed[1] ? parsed[1].toLowerCase() : null
+			};
+		}
+		return { code: value, lang: null };
+	}
+};