diff --git a/db/patch-http-body-encoding.sql b/db/patch-http-body-encoding.sql
new file mode 100644
index 000000000..322c8b893
--- /dev/null
+++ b/db/patch-http-body-encoding.sql
@@ -0,0 +1,12 @@
+-- You should not modify if this have pushed to Github, unless it does serious wrong with the db.
+BEGIN TRANSACTION;
+
+ALTER TABLE monitor ADD http_body_encoding VARCHAR(25);
+
+COMMIT;
+
+BEGIN TRANSACTION;
+
+UPDATE monitor SET http_body_encoding = 'json' WHERE (type = 'http' or type = 'keyword') AND http_body_encoding IS NULL;
+
+COMMIT;
diff --git a/server/database.js b/server/database.js
index 449f16d55..575827f34 100644
--- a/server/database.js
+++ b/server/database.js
@@ -70,6 +70,7 @@ class Database {
         "patch-maintenance-table2.sql": true,
         "patch-add-gamedig-monitor.sql": true,
         "patch-add-google-analytics-status-page-tag.sql": true,
+        "patch-http-body-encoding.sql": true
     };
 
     /**
diff --git a/server/model/monitor.js b/server/model/monitor.js
index d6e1896a0..b071a6221 100644
--- a/server/model/monitor.js
+++ b/server/model/monitor.js
@@ -111,6 +111,7 @@ class Monitor extends BeanModel {
             radiusCalledStationId: this.radiusCalledStationId,
             radiusCallingStationId: this.radiusCallingStationId,
             game: this.game,
+            httpBodyEncoding: this.httpBodyEncoding
         };
 
         if (includeSensitiveData) {
@@ -272,17 +273,29 @@ class Monitor extends BeanModel {
 
                     log.debug("monitor", `[${this.name}] Prepare Options for axios`);
 
+                    let contentType = null;
+                    let bodyValue = null;
+
+                    if (this.body && !this.httpBodyEncoding || this.httpBodyEncoding === "json") {
+                        bodyValue = JSON.parse(this.body);
+                        contentType = "application/json";
+                    } else if (this.body && (this.httpBodyEncoding === "xml")) {
+                        bodyValue = this.body;
+                        contentType = "text/xml; charset=utf-8";
+                    }
+
                     // Axios Options
                     const options = {
                         url: this.url,
                         method: (this.method || "get").toLowerCase(),
-                        ...(this.body ? { data: JSON.parse(this.body) } : {}),
+                        ...(bodyValue ? { data: bodyValue } : {}),
                         timeout: this.interval * 1000 * 0.8,
                         headers: {
                             "Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9",
                             "User-Agent": "Uptime-Kuma/" + version,
-                            ...(this.headers ? JSON.parse(this.headers) : {}),
+                            ...(contentType ? { "Content-Type": contentType } : {}),
                             ...(basicAuthHeader),
+                            ...(this.headers ? JSON.parse(this.headers) : {})
                         },
                         maxRedirects: this.maxredirects,
                         validateStatus: (status) => {
diff --git a/server/server.js b/server/server.js
index 18598171e..57a6a8fa7 100644
--- a/server/server.js
+++ b/server/server.js
@@ -726,6 +726,7 @@ let needSetup = false;
                 bean.radiusCalledStationId = monitor.radiusCalledStationId;
                 bean.radiusCallingStationId = monitor.radiusCallingStationId;
                 bean.radiusSecret = monitor.radiusSecret;
+                bean.httpBodyEncoding = monitor.httpBodyEncoding;
 
                 bean.validate();
 
diff --git a/src/lang/en.json b/src/lang/en.json
index 478ddddca..83bc22316 100644
--- a/src/lang/en.json
+++ b/src/lang/en.json
@@ -671,5 +671,6 @@
     "Google Analytics ID": "Google Analytics ID",
     "Edit Tag": "Edit Tag",
     "Server Address": "Server Address",
-    "Learn More": "Learn More"
+    "Learn More": "Learn More",
+    "Body Encoding": "Body Encoding"
 }
diff --git a/src/pages/EditMonitor.vue b/src/pages/EditMonitor.vue
index 297759c57..d2a418a55 100644
--- a/src/pages/EditMonitor.vue
+++ b/src/pages/EditMonitor.vue
@@ -503,6 +503,15 @@
                                     </select>
                                 </div>
 
+                                <!-- Encoding -->
+                                <div class="my-3">
+                                    <label for="httpBodyEncoding" class="form-label">{{ $t("Body Encoding") }}</label>
+                                    <select id="httpBodyEncoding" v-model="monitor.httpBodyEncoding" class="form-select">
+                                        <option value="json">JSON</option>
+                                        <option value="xml">XML</option>
+                                    </select>
+                                </div>
+
                                 <!-- Body -->
                                 <div class="my-3">
                                     <label for="body" class="form-label">{{ $t("Body") }}</label>
@@ -723,6 +732,15 @@ message HealthCheckResponse {
             ` ]);
         },
         bodyPlaceholder() {
+            if (this.monitor && this.monitor.httpBodyEncoding && this.monitor.httpBodyEncoding === "xml") {
+                return this.$t("Example:", [ `
+<?xml version="1.0" encoding="utf-8"?>
+<soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
+  <soap:Body>
+    <Uptime>Kuma</Uptime>
+  </soap:Body>
+</soap:Envelope>` ]);
+            }
             return this.$t("Example:", [ `
 {
     "key": "value"
@@ -872,6 +890,7 @@ message HealthCheckResponse {
                     mqttTopic: "",
                     mqttSuccessMessage: "",
                     authMethod: null,
+                    httpBodyEncoding: "json"
                 };
 
                 if (this.$root.proxyList && !this.monitor.proxyId) {
@@ -909,7 +928,7 @@ message HealthCheckResponse {
          * @returns {boolean} Is the form input valid?
          */
         isInputValid() {
-            if (this.monitor.body) {
+            if (this.monitor.body && (!this.monitor.httpBodyEncoding || this.monitor.httpBodyEncoding === "json")) {
                 try {
                     JSON.parse(this.monitor.body);
                 } catch (err) {
@@ -933,6 +952,7 @@ message HealthCheckResponse {
          * @returns {void}
          */
         async submit() {
+
             this.processing = true;
 
             if (!this.isInputValid()) {
@@ -940,11 +960,15 @@ message HealthCheckResponse {
                 return;
             }
 
-            // Beautify the JSON format
-            if (this.monitor.body) {
+            // Beautify the JSON format (only if httpBodyEncoding is not set or === json)
+            if (this.monitor.body && (!this.monitor.httpBodyEncoding || this.monitor.httpBodyEncoding === "json")) {
                 this.monitor.body = JSON.stringify(JSON.parse(this.monitor.body), null, 4);
             }
 
+            if (this.monitor.type && this.monitor.type !== "http" && this.monitor.type !== "keyword") {
+                this.monitor.httpBodyEncoding = null;
+            }
+
             if (this.monitor.headers) {
                 this.monitor.headers = JSON.stringify(JSON.parse(this.monitor.headers), null, 4);
             }