diff --git a/.editorconfig b/.editorconfig
new file mode 100644
index 0000000..ef8a34a
--- /dev/null
+++ b/.editorconfig
@@ -0,0 +1,15 @@
+root = true
+
+[*]
+end_of_line = lf
+insert_final_newline = true
+charset = utf-8
+
+[*.js]
+indent_style = space
+indent_size = 4
+
+# 4 space indentation
+[*.html]
+indent_style = space
+indent_size = 2
diff --git a/options.js b/options.js
index ff6c3f2..6eb6559 100644
--- a/options.js
+++ b/options.js
@@ -1,58 +1,58 @@
 const PATTERN_ROW = (addr, pattern) => `
 <tr>
-	<td><input type="text" name="server" value="${addr}"></td>
-  	<td><input type="text" name="pattern" value="${pattern}"></td>
+    <td><input type="text" name="server" value="${addr}"></td>
+    <td><input type="text" name="pattern" value="${pattern}"></td>
 </tr>
 `;
 
 function defaultPatterns() {
-	return [
-		{ server: '', pattern: '.*' },
-	];
+    return [
+        { server: '', pattern: '.*' },
+    ];
 }
 
 function setPatterns(patterns) {
-	if (!patterns || patterns.length === 0) {
-		patterns = defaultPatterns();
-	}
+    if (!patterns || patterns.length === 0) {
+        patterns = defaultPatterns();
+    }
 
-	console.log('PATTERNS', patterns);
+    console.log('PATTERNS', patterns);
 
-	var reducer = (acc, item) => acc + PATTERN_ROW(item.server, item.pattern);
+    var reducer = (acc, item) => acc + PATTERN_ROW(item.server, item.pattern);
 
-	var html = patterns.reduce(reducer, '');
+    var html = patterns.reduce(reducer, '');
 
-	document.querySelector(".js-pattern-rows").innerHTML = html;
+    document.querySelector(".js-pattern-rows").innerHTML = html;
 }
 
 function restoreOptions() {
-	PatternStorage.get().then(
-		setPatterns,
-		(error) => {
-			console.log(`Error: ${error}`)
-		}
-	);
+    PatternStorage.get().then(
+        setPatterns,
+        (error) => {
+            console.log(`Error: ${error}`)
+        }
+    );
 }
 
 function saveOptions(evt) {
-	evt.preventDefault();
-	var patterns = [];
-	var rows = document.querySelectorAll(".js-pattern-rows tr");
-	rows.forEach(row => {
-		var server = row.querySelector('[name="server"]').value;
-		var pattern = row.querySelector('[name="pattern"]').value;
-		if (server) {
-			patterns.push({server: server, pattern: pattern});
-		}
-	});
+    evt.preventDefault();
+    var patterns = [];
+    var rows = document.querySelectorAll(".js-pattern-rows tr");
+    rows.forEach(row => {
+        var server = row.querySelector('[name="server"]').value;
+        var pattern = row.querySelector('[name="pattern"]').value;
+        if (server) {
+            patterns.push({server: server, pattern: pattern});
+        }
+    });
 
-	PatternStorage.set(patterns);
+    PatternStorage.set(patterns);
 }
 
 function addRow(evt) {
-	evt.preventDefault();
-	var el = document.querySelector(".js-pattern-rows");
-	el.innerHTML += PATTERN_ROW('', '');
+    evt.preventDefault();
+    var el = document.querySelector(".js-pattern-rows");
+    el.innerHTML += PATTERN_ROW('', '');
 }
 
 document.addEventListener("DOMContentLoaded", restoreOptions);
diff --git a/postify.js b/postify.js
index 49208fd..1b28c6b 100644
--- a/postify.js
+++ b/postify.js
@@ -2,29 +2,29 @@ const APP_NAME = 'Postify';
 const SERVER_ADDR = 'http://127.0.0.1:9999';
 
 function sendUrl(url) {
-	browser.notifications.create({
-    	"type": "basic",
-    	"iconUrl": browser.extension.getURL("icons/postify-48.png"),
-    	"title": APP_NAME,
-    	"message": url,
-	});
+    browser.notifications.create({
+        "type": "basic",
+        "iconUrl": browser.extension.getURL("icons/postify-48.png"),
+        "title": APP_NAME,
+        "message": url,
+    });
 
-	fetch(SERVER_ADDR, {
-	    method: 'POST',
-	    headers: {
-	      'Accept': 'application/json',
-	      'Content-Type': 'application/json'
-	    },
-	    body: JSON.stringify({
-	    	url: url
-	    })
-  	});
+    fetch(SERVER_ADDR, {
+        method: 'POST',
+        headers: {
+          'Accept': 'application/json',
+          'Content-Type': 'application/json'
+        },
+        body: JSON.stringify({
+            url: url
+        })
+    });
 }
 
 function sendCurrentUrl(args) {
-	if (args.url) {
-		sendUrl(args.url)
-	}
+    if (args.url) {
+        sendUrl(args.url)
+    }
 }
 
 browser.browserAction.onClicked.addListener(sendCurrentUrl);
diff --git a/storage.js b/storage.js
index 6a7f487..7529bbf 100644
--- a/storage.js
+++ b/storage.js
@@ -1,24 +1,24 @@
 function PropertyStorage(name) {
-	parse = function (data) {
-		var propertyData = data[name];
-		if (!propertyData) {
-			return null;
-		}
-		try {
-			return JSON.parse(propertyData);
-		} catch (e) {
-			return null;
-		}
-	};
+    parse = function (data) {
+        var propertyData = data[name];
+        if (!propertyData) {
+            return null;
+        }
+        try {
+            return JSON.parse(propertyData);
+        } catch (e) {
+            return null;
+        }
+    };
 
-	this.get = function () {
-		var getting = browser.storage.local.get(name);
-		return getting.then(parse);
-	};
+    this.get = function () {
+        var getting = browser.storage.local.get(name);
+        return getting.then(parse);
+    };
 
-	this.set = function (value) {
-		return browser.storage.local.set({ patterns: JSON.stringify(value) });
-	};
+    this.set = function (value) {
+        return browser.storage.local.set({ patterns: JSON.stringify(value) });
+    };
 }
 
 PatternStorage = new PropertyStorage('patterns');