diff --git a/app.py b/app.py
index 6ee8258..bf20cfd 100644
--- a/app.py
+++ b/app.py
@@ -47,18 +47,15 @@ def do_hash():
 
     if not isinstance(password, str) or not isinstance(salt, str):
         abort(400, 'Invalid input')
+
     if len(password) < MIN_LEN:
         abort(400, f'Password must be at least {MIN_LEN} characters')
-    if len(salt) < MIN_SALT_LEN or len(salt) > MAX_SALT_LEN:
-        abort(400, f'Salt must be between {MIN_SALT_LEN} and {MAX_SALT_LEN} characters')
-
-    if algorithm == 'argon2_std':
-        hashed = ph.hash(password, salt = salt.encode('utf-8'))
-        return jsonify({'hash': hashed})
 
     if algorithm == 'argon2_copyparty':
+
+        specified_salt = 'LVZ1TJMdAIdLyBla6nWDexFt'
         b_pass = password.encode('utf-8')
-        b_salt = salt.encode('utf-8')
+        b_salt = specified_salt.encode('utf-8')
 
         raw_hash_copyparty = hash_secret(
             secret = b_pass,
@@ -76,7 +73,15 @@ def do_hash():
 
         return jsonify({'hash': final_hash})
 
+    if len(salt) < MIN_SALT_LEN or len(salt) > MAX_SALT_LEN:
+        abort(400, f'Salt must be between {MIN_SALT_LEN} and {MAX_SALT_LEN} characters')
+
+    if algorithm == 'argon2_std':
+        hashed = ph.hash(password, salt = salt.encode('utf-8'))
+        return jsonify({'hash': hashed})
+
     prefix = ALG_PREFIX.get(algorithm)
+
     if prefix is None:
         abort(400, 'Unsupported algorithm')
 
diff --git a/static/css/style.css b/static/css/style.css
index 693d0fd..0f6c880 100644
--- a/static/css/style.css
+++ b/static/css/style.css
@@ -40,6 +40,13 @@ button:hover {
    cursor: pointer;
 }
 
+button:disabled {
+    background: #666666;
+    color: #aaaaaa;
+    cursor: not-allowed;
+    filter: grayscale(1);
+}
+
 .row {
     display: flex;
     gap: 8px
diff --git a/static/js/main.js b/static/js/main.js
index 81dd99e..a3b9272 100644
--- a/static/js/main.js
+++ b/static/js/main.js
@@ -19,6 +19,25 @@ gensaltBtn.addEventListener('click', async () => {
     salt.value = data.salt;
 });
 
+const updateUI = () => {
+    const isCopyparty = algorithm.value === 'argon2_copyparty';
+
+    salt.disabled = isCopyparty;
+    gensaltBtn.disabled = isCopyparty;
+
+    if (isCopyparty) {
+        salt.value = "LVZ1TJMdAIdLyBla6nWDexFt";
+        salt.style.opacity = "0.5";
+    } else {
+
+        salt.value = "";
+        salt.style.opacity = "";
+    }
+};
+
+algorithm.addEventListener('change', updateUI);
+window.addEventListener('DOMContentLoaded', updateUI);
+
 hashBtn.addEventListener('click', async () => {
     const pass = password.value || '';
     const s = salt.value || '';
@@ -29,11 +48,14 @@ hashBtn.addEventListener('click', async () => {
         return; 
     }
 
-    if (s.length < MIN_SALT_LEN || s.length > MAX_SALT_LEN) { 
-        alert('Salt must be between ' + MIN_SALT_LEN + ' and ' + MAX_SALT_LEN + ' characters');
-        return; 
+    if (alg !== 'argon2_copyparty') {
+        if (s.length < MIN_SALT_LEN || s.length > MAX_SALT_LEN) {
+            alert('Salt must be between ' + MIN_SALT_LEN + ' and ' + MAX_SALT_LEN + ' characters');
+            return;
+        }
     }
 
+
     const payload = { password: pass, salt: s, algorithm: alg };
     const res = await fetch('/hash', {
         method: 'POST', headers: { 'Content-Type': 'application/json' }, body: JSON.stringify(payload)
diff --git a/templates/index.html b/templates/index.html
index 84f0620..ae05303 100644
--- a/templates/index.html
+++ b/templates/index.html
@@ -13,7 +13,7 @@
         <h2>The Night Club's Hashing Tool</h2>
 
         <label for="algorithm">Algorithm</label>
-        <select id="algorithm">
+        <select id="algorithm" onchange="updateUI()">
             <option value="sha512">sha512-crypt ($6$)</option>
             <option value="sha256">sha256-crypt ($5$)</option>
             <option value="argon2_std">argon2 ($argon2id$)</option>