diff --git a/config.properties b/config.properties
index 39bd40a..fd063d7 100644
--- a/config.properties
+++ b/config.properties
@@ -23,6 +23,9 @@ FRONTEND_URL: https://piped.kavin.rocks
 # Enable haveibeenpwned compromised password API
 COMPROMISED_PASSWORD_CHECK: true
 
+# Disable Registration
+DISABLE_REGISTRATION: false
+
 # Hibernate properties
 hibernate.connection.url: jdbc:postgresql://postgres:5432/piped
 hibernate.connection.driver_class: org.postgresql.Driver
diff --git a/src/main/java/me/kavin/piped/consts/Constants.java b/src/main/java/me/kavin/piped/consts/Constants.java
index 434bbb0..604554b 100644
--- a/src/main/java/me/kavin/piped/consts/Constants.java
+++ b/src/main/java/me/kavin/piped/consts/Constants.java
@@ -43,6 +43,8 @@ public class Constants {
 
     public static final boolean COMPROMISED_PASSWORD_CHECK;
 
+    public static final boolean DISABLE_REGISTRATION;
+
     public static final ObjectMapper mapper = new ObjectMapper().addMixIn(Page.class, PageMixin.class);
 
     public static final Object2ObjectOpenHashMap<String, String> hibernateProperties = new Object2ObjectOpenHashMap<>();
@@ -62,6 +64,7 @@ public class Constants {
             HTTP_PROXY = prop.getProperty("HTTP_PROXY");
             FRONTEND_URL = prop.getProperty("FRONTEND_URL", "https://pipedapi.kavin.rocks");
             COMPROMISED_PASSWORD_CHECK = Boolean.parseBoolean(prop.getProperty("COMPROMISED_PASSWORD_CHECK", "true"));
+            DISABLE_REGISTRATION = Boolean.parseBoolean(prop.getProperty("DISABLE_REGISTRATION", "false"));
             prop.forEach((_key, _value) -> {
                 String key = String.valueOf(_key), value = String.valueOf(_value);
                 if (key.startsWith("hibernate"))
diff --git a/src/main/java/me/kavin/piped/utils/ResponseHelper.java b/src/main/java/me/kavin/piped/utils/ResponseHelper.java
index 5ed568d..b5d75da 100644
--- a/src/main/java/me/kavin/piped/utils/ResponseHelper.java
+++ b/src/main/java/me/kavin/piped/utils/ResponseHelper.java
@@ -95,6 +95,7 @@ import me.kavin.piped.utils.resp.AcceptedResponse;
 import me.kavin.piped.utils.resp.AlreadyRegisteredResponse;
 import me.kavin.piped.utils.resp.AuthenticationFailureResponse;
 import me.kavin.piped.utils.resp.CompromisedPasswordResponse;
+import me.kavin.piped.utils.resp.DisabledRegistrationResponse;
 import me.kavin.piped.utils.resp.IncorrectCredentialsResponse;
 import me.kavin.piped.utils.resp.InvalidRequestResponse;
 import me.kavin.piped.utils.resp.LoginResponse;
@@ -546,6 +547,9 @@ public class ResponseHelper {
     public static final byte[] registerResponse(String user, String pass) throws IOException, NoSuchAlgorithmException,
             InvalidKeySpecException, InterruptedException, URISyntaxException {
 
+        if (Constants.DISABLE_REGISTRATION)
+            return Constants.mapper.writeValueAsBytes(new DisabledRegistrationResponse());
+
         if (user == null || pass == null)
             return Constants.mapper.writeValueAsBytes(new InvalidRequestResponse());
 
diff --git a/src/main/java/me/kavin/piped/utils/resp/DisabledRegistrationResponse.java b/src/main/java/me/kavin/piped/utils/resp/DisabledRegistrationResponse.java
new file mode 100644
index 0000000..af53f0b
--- /dev/null
+++ b/src/main/java/me/kavin/piped/utils/resp/DisabledRegistrationResponse.java
@@ -0,0 +1,7 @@
+package me.kavin.piped.utils.resp;
+
+public class DisabledRegistrationResponse {
+
+    public String error = "This instance has registrations disabled.";
+
+}