diff --git a/app/Header.tsx b/app/Header.tsx
index 3eddf0d..9b942db 100644
--- a/app/Header.tsx
+++ b/app/Header.tsx
@@ -1,24 +1,40 @@
+'use client';
+
 import React from 'react';
 import ThemeSwitcher from '@/Components/ThemeSwitcher';
 import Link from 'next/link';
+import { usePathname } from 'next/navigation';
+import { urlList } from '@/app/urlList';
+
+const searchPageName = (url: string) => {
+    const page = urlList.find((it) => it.url === url);
+
+    return page && page.name;
+};
 
 const Header = () => {
+    const path = usePathname();
+    const currModule = searchPageName(path);
 
     return (
-        <div>
+        <div className={ 'z-50' }>
             <div
                 className={ 'h-16 fixed backdrop-blur w-full z-50 transition-colors border-b-[1px] border-neutral-200 dark:border-neutral-700' }
             >
-
                 <div className={ 'p-3 px-5' }>
-                    <div className={ 'flex flex-row items-center justify-between align-baseline' }>
+                    <div className={ 'grid grid-cols-2 md:grid-cols-3 items-center justify-between' }>
                         <Link
                             className={ 'font-bold text-2xl' }
                             href={ '/' }
                         >
                             LMTLab
                         </Link>
-                        <ThemeSwitcher />
+                        <p className={ 'hidden md:block text-2xl text-weak justify-self-center' }>
+                            { currModule }
+                        </p>
+                        <div className={ 'justify-self-end' }>
+                            <ThemeSwitcher />
+                        </div>
                     </div>
                 </div>
 
diff --git a/app/globals.css b/app/globals.css
index f3bd93b..d8ee889 100644
--- a/app/globals.css
+++ b/app/globals.css
@@ -2,6 +2,10 @@
 @tailwind components;
 @tailwind utilities;
 
+.text-weak {
+    @apply text-zinc-500 dark:text-zinc-400;
+}
+
 html.light {
     --background: #ffffff;
     --foreground: #171717;
diff --git a/app/page.tsx b/app/page.tsx
index adbb039..25259d8 100644
--- a/app/page.tsx
+++ b/app/page.tsx
@@ -1,13 +1,7 @@
 import { Card, CardBody } from '@nextui-org/card';
 import Link from 'next/link';
+import { urlList } from '@/app/urlList';
 
-const urlList = [
-    {
-        name: 'Json Parser',
-        desc: 'Parse a Json file, with formatter and syntax highlighting',
-        url: '/jsonparser'
-    }
-];
 
 export default function Home() {
 
diff --git a/app/strcoder/algorithms.ts b/app/strcoder/algorithms.ts
new file mode 100644
index 0000000..7b928f2
--- /dev/null
+++ b/app/strcoder/algorithms.ts
@@ -0,0 +1,56 @@
+import { enc, MD5, SHA1, SHA256, SHA512 } from 'crypto-js';
+
+export const hashAlgorithms = {
+    'SHA-1': (input: string) => {
+        return SHA1(input);
+    },
+    'SHA-256': (input: string) => {
+        return SHA256(input);
+    },
+    'SHA-512': (input: string) => {
+        return SHA512(input);
+    },
+    'MD5': (input: string) => {
+        return MD5(input);
+    }
+};
+
+export const encodeAlgorithms = {
+    'Base64': (input: string) => {
+        const wordArray = enc.Utf8.parse(input);
+        return enc.Base64.stringify(wordArray);
+    },
+    'URI': (input: string) => {
+        return encodeURI(input).toString();
+    },
+    'URI Component': (input: string) => {
+        return encodeURIComponent(input).toString();
+    }
+};
+
+export const decodeAlgorithms = {
+    'Base64': (input: string) => {
+        return enc.Base64.parse(input).toString(enc.Utf8);
+    },
+    'URI': (input: string) => {
+        return decodeURI(input).toString();
+    },
+    'URI Component': (input: string) => {
+        return decodeURIComponent(input).toString();
+    }
+};
+
+export const algorithms = {
+    'hash': {
+        list: hashAlgorithms,
+        color: 'primary'
+    },
+    'encode': {
+        list: encodeAlgorithms,
+        color: 'secondary'
+    },
+    'decode': {
+        list: decodeAlgorithms,
+        color: 'success'
+    }
+};
diff --git a/app/strcoder/page.tsx b/app/strcoder/page.tsx
new file mode 100644
index 0000000..e4ba894
--- /dev/null
+++ b/app/strcoder/page.tsx
@@ -0,0 +1,127 @@
+'use client';
+
+import React, { useState } from 'react';
+import { Button, Textarea } from '@nextui-org/react';
+import { toast } from 'react-toastify';
+import { HiOutlineBackspace, HiOutlineDuplicate } from 'react-icons/hi';
+import { algorithms } from '@/app/strcoder/algorithms';
+import { useTheme } from 'next-themes';
+
+type ButtonColor = 'primary' | 'secondary' | 'success' | 'default' | 'warning' | 'danger' | undefined;
+
+const Page = () => {
+    const [ input, setInput ] = useState('');
+    const [ output, setOutput ] = useState('');
+    const { theme } = useTheme();
+    return (
+        <>
+            <div
+                className={ 'p-5 px-10 lg:p-20 h-full w-full' }
+            >
+                <div className={ 'flex flex-col gap-4 w-full' }>
+                    <div
+                        className={ 'h-full w-full relative' }
+                    >
+                        <Textarea
+                            variant={ 'faded' }
+                            label={ 'Input' }
+                            value={ input }
+                            onValueChange={ setInput }
+                        />
+                        <div className={ 'flex flex-row-reverse absolute bottom-4 right-4 z-10' }>
+                            <Button
+                                variant={ 'light' }
+                                isIconOnly
+                                aria-label={ 'copy to clipboard' }
+                                onClick={ () => {
+                                    navigator.clipboard.writeText(input);
+                                    toast.success('Copied to Clipboard');
+                                } }
+                            >
+                                <HiOutlineDuplicate size={ 20 } />
+                            </Button>
+                            <Button
+                                variant={ 'light' }
+                                isIconOnly
+                                aria-label={ 'clear input' }
+                                onClick={ () => {
+                                    setInput('');
+                                    setOutput('');
+                                    toast.success('Input Cleared');
+                                } }
+                            >
+                                <HiOutlineBackspace size={ 20 } />
+                            </Button>
+                        </div>
+                    </div>
+
+                    <div>
+                        <p className={ 'text-center text-xl font-bold' }>Algorithms</p>
+                    </div>
+
+
+                    <ul className={ 'flex flex-col gap-6 w-full mb-4' }>
+                        {
+                            Object.entries(algorithms).map(([ category, list ]) => (
+                                <li key={ category } className={ 'space-y-2' }>
+                                    <p className={ 'font-bold' }>{ category.toUpperCase() }</p>
+                                    <ul className={ 'flex flex-row flex-wrap gap-4 w-full' }>
+                                        {
+                                            Object.entries(list.list).map(([ key, value ]) => (
+                                                <li key={ key }>
+                                                    <Button
+                                                        variant={ theme === 'light' ? 'flat' : 'solid' }
+                                                        aria-label={ `${ category } algorithm ${ key }` }
+                                                        color={ list.color as ButtonColor }
+                                                        onClick={ () => {
+                                                            try {
+                                                                setOutput((value as (input: string) => string)(input));
+                                                                toast.success('Operation Succeed');
+                                                            } catch (error) {
+                                                                toast.error(`Operation Failed: ${ error }`, {
+                                                                    autoClose: 5000
+                                                                });
+                                                            }
+                                                        } }
+                                                    >
+                                                        { key }
+                                                    </Button>
+                                                </li>
+                                            ))
+                                        }
+                                    </ul>
+                                </li>
+                            ))
+                        }
+                    </ul>
+
+                    <div
+                        className={ 'h-full w-full relative' }
+                    >
+                        <Textarea
+                            readOnly
+                            variant={ 'faded' }
+                            label={ 'Output' }
+                            value={ output }
+                        />
+                        <div className={ 'flex flex-row-reverse absolute bottom-4 right-4 z-10' }>
+                            <Button
+                                variant={ 'light' }
+                                isIconOnly
+                                aria-label={ 'copy to clipboard' }
+                                onClick={ () => {
+                                    navigator.clipboard.writeText(output);
+                                    toast.success('Copied to Clipboard');
+                                } }
+                            >
+                                <HiOutlineDuplicate size={ 20 } />
+                            </Button>
+                        </div>
+                    </div>
+                </div>
+
+            </div>
+        </>
+    );
+};
+export default Page;
diff --git a/app/urlList.ts b/app/urlList.ts
new file mode 100644
index 0000000..7d668ff
--- /dev/null
+++ b/app/urlList.ts
@@ -0,0 +1,12 @@
+export const urlList = [
+    {
+        name: 'Json Parser',
+        desc: 'Parse a Json file, with formatter and syntax highlighting',
+        url: '/jsonparser'
+    },
+    {
+        name: 'String Coder',
+        desc: 'String encoding & decoding, hashing',
+        url: '/strcoder'
+    }
+];
diff --git a/package.json b/package.json
index 55cc1b3..43cf597 100644
--- a/package.json
+++ b/package.json
@@ -11,6 +11,7 @@
   "dependencies": {
     "@monaco-editor/react": "^4.6.0",
     "@nextui-org/react": "^2.4.8",
+    "crypto-js": "^4.2.0",
     "framer-motion": "^11.11.0",
     "next": "14.2.14",
     "next-themes": "^0.3.0",
@@ -20,6 +21,7 @@
     "react-toastify": "^10.0.6"
   },
   "devDependencies": {
+    "@types/crypto-js": "^4.2.2",
     "@types/node": "^20",
     "@types/react": "^18",
     "@types/react-dom": "^18",