diff --git a/app.js b/app.ts
similarity index 100%
rename from app.js
rename to app.ts
diff --git a/src/utils/minify.utils.js b/src/utils/minify.utils.ts
similarity index 59%
rename from src/utils/minify.utils.js
rename to src/utils/minify.utils.ts
index caeb190..3f37545 100644
--- a/src/utils/minify.utils.js
+++ b/src/utils/minify.utils.ts
@@ -1,8 +1,8 @@
 const htmlShrink = require('html-minifier').minify;
 const juice = require('juice');
 
-module.exports = async function minifyMail(input) {
-  const inlined = juice(input);
+module.exports = async function minifyMail(input: string): Promise<string> {
+  const inlined: string = juice(input);
   return htmlShrink(inlined, {
     removeComments: true,
     collapseWhitespace: true
diff --git a/src/utils/sanitizer.utils.js b/src/utils/sanitizer.utils.ts
similarity index 66%
rename from src/utils/sanitizer.utils.js
rename to src/utils/sanitizer.utils.ts
index 9b7d99b..5dd82f0 100644
--- a/src/utils/sanitizer.utils.js
+++ b/src/utils/sanitizer.utils.ts
@@ -1,26 +1,26 @@
 //const log   = require('../utils/log.utils');
 
-function removeNonAlphanumeric(inputString) {
+function removeNonAlphanumeric(inputString: string) {
   return inputString.replace(/[^a-zA-Z0-9]/g, '');
 }
 
-function removeNonAlpha(inputString) { 
+function removeNonAlpha(inputString: string) { 
   return inputString.replace(/[^a-zA-Z]/g, '');
 }
 
-function removeNonNumeric(inputString) {
+function removeNonNumeric(inputString: string) {
   return inputString.replace(/[^0-9]/g, '');
 }
 
 const cleanApiEndpointTxt = removeNonAlpha;
 const cleanApiEndpointNum = removeNonAlphanumeric;
 
-function cleanNrcc(input) { // Remove newlines and then <p> tags from input
+function cleanNrcc(input: string) { // Remove newlines and then <p> tags from input
   const cleanInput = input.replace(/[\n\r]/g, '').replace(/<\/?p[^>]*>/g, '');
   return cleanInput;
 }
 
-async function getDomainFromEmail(mail) { // Needs testing
+async function getDomainFromEmail(mail: string) { // Needs testing
   let split = mail.split('@');
   return split[1];
 }
diff --git a/src/utils/timeConvert.utils.js b/src/utils/timeConvert.utils.ts
similarity index 74%
rename from src/utils/timeConvert.utils.js
rename to src/utils/timeConvert.utils.ts
index c8710a5..3d4499e 100644
--- a/src/utils/timeConvert.utils.js
+++ b/src/utils/timeConvert.utils.ts
@@ -1,10 +1,10 @@
-function unixLocal(unix) {
+function unixLocal(unix: number) {
   var jsTime = unix*1000;
   var dt = new Date(jsTime);
   return dt.toLocaleString();
 }
 
-function jsUnix(js) {
+function jsUnix(js: number) {
   var preRound = js / 1000;
   return Math.round(preRound);
 }
diff --git a/tsconfig.json b/tsconfig.json
index f85d1cb..82caffb 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -55,7 +55,7 @@
     // "sourceMap": true,                                /* Create source map files for emitted JavaScript files. */
     // "inlineSourceMap": true,                          /* Include sourcemap files inside the emitted JavaScript. */
     // "outFile": "./",                                  /* Specify a file that bundles all outputs into one JavaScript file. If 'declaration' is true, also designates a file that bundles all .d.ts output. */
-    // "outDir": "./",                                   /* Specify an output folder for all emitted files. */
+     "outDir": "./dist",                                   /* Specify an output folder for all emitted files. */
     // "removeComments": true,                           /* Disable emitting comments. */
     // "noEmit": true,                                   /* Disable emitting files from a compilation. */
     // "importHelpers": true,                            /* Allow importing helper functions from tslib once per project, instead of including them per-file. */