diff --git a/bin/cli/compile.js b/bin/cli/compile.js
index 5099591..54a75c6 100644
--- a/bin/cli/compile.js
+++ b/bin/cli/compile.js
@@ -36,26 +36,19 @@ var __generator = (this && this.__generator) || function (thisArg, body) {
     }
 };
 Object.defineProperty(exports, "__esModule", { value: true });
-exports.compile = void 0;
+exports.compile = exports.create_output = void 0;
 var get_the_config_1 = require("../utils/get-the-config");
 var validate_config_1 = require("../utils/validate-config");
 var read_lang_files_1 = require("../functions/read-lang-files");
 var fs_1 = require("fs");
 var log_message_1 = require("../utils/log-message");
-function compile(option) {
+var watcher_1 = require("../functions/watcher");
+function create_output(config) {
     return __awaiter(this, void 0, void 0, function () {
-        var config_file, config, status, result;
+        var result;
         return __generator(this, function (_a) {
             switch (_a.label) {
-                case 0:
-                    config_file = option.config;
-                    config = (0, get_the_config_1.get_the_config)(config_file);
-                    if (!config)
-                        return [2 /*return*/];
-                    status = (0, validate_config_1.validate_config)(config);
-                    if (!status)
-                        return [2 /*return*/];
-                    return [4 /*yield*/, (0, read_lang_files_1.read_lang_files)(config)];
+                case 0: return [4 /*yield*/, (0, read_lang_files_1.read_lang_files)(config)];
                 case 1:
                     result = _a.sent();
                     (0, log_message_1.log_message)('success', 'compiling_successfully', { output_file: config['output-file'] });
@@ -65,4 +58,24 @@ function compile(option) {
         });
     });
 }
+exports.create_output = create_output;
+function compile(option) {
+    return __awaiter(this, void 0, void 0, function () {
+        var config_file, config, status;
+        return __generator(this, function (_a) {
+            config_file = option.config;
+            config = (0, get_the_config_1.get_the_config)(config_file);
+            if (!config)
+                return [2 /*return*/];
+            status = (0, validate_config_1.validate_config)(config);
+            if (!status)
+                return [2 /*return*/];
+            create_output(config);
+            if (option.watch) {
+                (0, watcher_1.watch_file)(config);
+            }
+            return [2 /*return*/];
+        });
+    });
+}
 exports.compile = compile;
diff --git a/bin/functions/watcher.js b/bin/functions/watcher.js
new file mode 100644
index 0000000..d454394
--- /dev/null
+++ b/bin/functions/watcher.js
@@ -0,0 +1,27 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.watch_file = void 0;
+var fs_1 = require("fs");
+var compile_1 = require("../cli/compile");
+function watch_file(config) {
+    var files = config.files;
+    var langs = config.langs;
+    if (config.global) {
+        langs.push('global');
+    }
+    var file_names = Object.keys(files);
+    file_names.syncForEach(function (name, next_name) {
+        langs.syncForEach(function (lang, next_lang) {
+            try {
+                (0, fs_1.watch)(process.cwd() + '/' + config['input-dir'] + '/' + files[name] + '/' + lang + '.json', function (event, filename) {
+                    if (filename) {
+                        (0, compile_1.create_output)(config);
+                    }
+                });
+            }
+            catch (error) { }
+            next_lang();
+        }, next_name);
+    });
+}
+exports.watch_file = watch_file;
diff --git a/bin/index.js b/bin/index.js
index fb5179e..0591ecd 100644
--- a/bin/index.js
+++ b/bin/index.js
@@ -9,5 +9,6 @@ var compile_1 = require("./cli/compile");
 program.command('compile')
     .description('Converts the files in the input folder into a single file output.')
     .requiredOption('-c,--config <char>', 'config file.')
+    .option('-w, --watch', 'Automatically saves changes.')
     .action(compile_1.compile);
 program.parse();
diff --git a/i18n/messages/en.json b/i18n/messages/en.json
index 3d7dd95..fcad6ae 100644
--- a/i18n/messages/en.json
+++ b/i18n/messages/en.json
@@ -1,3 +1,5 @@
 {
-    "test":"b"
+    "test":"b",
+    "merhaba":"a",
+    "yumurta":"b"
 }
\ No newline at end of file
diff --git a/output.json b/output.json
index 038c997..02505fc 100644
--- a/output.json
+++ b/output.json
@@ -1 +1,14 @@
-{"en":{"messages":{"test":"b"}},"tr":{"messages":{"test":"a"}}}
\ No newline at end of file
+{
+    "en": {
+        "messages": {
+            "test": "b",
+            "merhaba": "a",
+            "yumurta": "b"
+        }
+    },
+    "tr": {
+        "messages": {
+            "test": "a"
+        }
+    }
+}
\ No newline at end of file
diff --git a/package.json b/package.json
index ff5eb12..f18217e 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
     "name": "localizer-js",
-    "version": "1.0.6-beta",
+    "version": "1.1.0-beta",
     "description": "Language support development tool for apps.",
     "main": "./bin/index.js",
     "scripts": {
diff --git a/src/cli/compile.ts b/src/cli/compile.ts
index acc9f82..d89edf9 100644
--- a/src/cli/compile.ts
+++ b/src/cli/compile.ts
@@ -3,17 +3,22 @@ import { validate_config } from '../utils/validate-config';
 import { read_lang_files } from '../functions/read-lang-files';
 import { writeFileSync } from 'fs';
 import { log_message } from '../utils/log-message';
+import { watch_file } from '../functions/watcher';
+
+export async function create_output(config) {
+    var result = await read_lang_files(config);
+    log_message('success','compiling_successfully' , {output_file:config['output-file']});
+    writeFileSync(process.cwd() + '/' +  config['output-file'],JSON.stringify(result));
+}
 
 export async function compile(option) {
-    
     const config_file = option.config;
     const config = get_the_config(config_file);
     if (!config) return;
     var status = validate_config(config);
     if (!status) return;
-    var result = await read_lang_files(config);
-
-
-    log_message('success','compiling_successfully' , {output_file:config['output-file']});
-    writeFileSync(process.cwd() + '/' +  config['output-file'],JSON.stringify(result));
+    create_output(config);
+    if (option.watch) {
+        watch_file(config);   
+    }
 }
\ No newline at end of file
diff --git a/src/functions/watcher.ts b/src/functions/watcher.ts
new file mode 100644
index 0000000..49d373f
--- /dev/null
+++ b/src/functions/watcher.ts
@@ -0,0 +1,32 @@
+import { watch } from 'fs';
+import { create_output } from '../cli/compile';
+import { config_type } from '../types/config-type';
+
+export function watch_file(config: config_type) {
+
+    var files = config.files;
+    var langs = config.langs;
+    if (config.global) {langs.push('global');}
+    
+    var file_names = Object.keys(files);
+
+    file_names.syncForEach(function (name, next_name) {
+
+        langs.syncForEach(function (lang, next_lang) {
+
+            try {
+                watch(process.cwd() + '/' + config['input-dir'] + '/' + files[name] + '/' + lang + '.json', (event, filename) => {
+                    if (filename) {
+                        create_output(config);
+                    }
+                });
+            } catch (error) {}
+
+            
+
+            next_lang();
+        }, next_name);
+
+    });
+
+}
\ No newline at end of file
diff --git a/src/index.ts b/src/index.ts
index 0046c61..f6414de 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -7,9 +7,14 @@ const program = new Command();
 import {compile} from './cli/compile';
 // commands
 
+  
+
 program.command('compile')
     .description('Converts the files in the input folder into a single file output.')
     .requiredOption('-c,--config <char>', 'config file.')
+    .option('-w, --watch','Automatically saves changes.')
     .action(compile);
 
+    
+
 program.parse();
diff --git a/test.log b/test.log
new file mode 100644
index 0000000..17ccb08
--- /dev/null
+++ b/test.log
@@ -0,0 +1 @@
+dasf
\ No newline at end of file