diff --git a/src/main/java/ch/csnc/burp/CopyRequestResponseConfiguration.java b/src/main/java/ch/csnc/burp/CopyRequestResponseConfiguration.java
index 8ffe3db..935e229 100644
--- a/src/main/java/ch/csnc/burp/CopyRequestResponseConfiguration.java
+++ b/src/main/java/ch/csnc/burp/CopyRequestResponseConfiguration.java
@@ -6,6 +6,7 @@ public class CopyRequestResponseConfiguration {
     private static final String CUT_TEXT_NBSP_KEY = "CopyRequestResponseCutTextNbsp";
     private static final String COPY_FULL_FULL_OR_SELECTION_KEY = "CopyRequestResponseCopyFullFullOrSelectionHotKey";
     private static final String COPY_FULL_HEADER_KEY = "CopyRequestResponseCopyFullHeaderHotKey";
+    private static final String ENABLE_JSON_FORMATTING_KEY = "CopyRequestResponseEnableJSONFormatting";
 
     public static String cutText() {
         var cutText = CopyRequestResponseExtension.api().persistence().preferences().getString(CUT_TEXT_KEY);
@@ -62,6 +63,19 @@ public static void setCopyFullHeaderHotKey(String hotKey) {
         CopyRequestResponseExtension.api().persistence().preferences().setString(COPY_FULL_HEADER_KEY, hotKey);
     }
 
+    public static boolean enableJsonFormatting() {
+        var enableJson = CopyRequestResponseExtension.api().persistence().preferences().getBoolean(ENABLE_JSON_FORMATTING_KEY);
+        if (enableJson == null) {
+            enableJson = false;
+        }
+        setEnableJsonFormatting(enableJson);
+        return enableJson;
+    }
+
+    public static void setEnableJsonFormatting(boolean enabled) {
+        CopyRequestResponseExtension.api().persistence().preferences().setBoolean(ENABLE_JSON_FORMATTING_KEY, enabled);
+    }
+    
     private CopyRequestResponseConfiguration() {
         // static class
     }
diff --git a/src/main/java/ch/csnc/burp/CopyRequestResponseConfigurationDialog.java b/src/main/java/ch/csnc/burp/CopyRequestResponseConfigurationDialog.java
index ba2c530..8663f45 100644
--- a/src/main/java/ch/csnc/burp/CopyRequestResponseConfigurationDialog.java
+++ b/src/main/java/ch/csnc/burp/CopyRequestResponseConfigurationDialog.java
@@ -51,6 +51,10 @@ public void keyReleased(KeyEvent e) {
         useNbspCheckbox.setSelected(CopyRequestResponseConfiguration.useNonBreakableSpace());
         useNbspCheckbox.addActionListener(event -> CopyRequestResponseConfiguration.setUseNonBreakableSpace(useNbspCheckbox.isSelected()));
 
+        var enableJsonFormattingCheckbox = new JCheckBox("Enable pretty-printing of JSON data");
+        enableJsonFormattingCheckbox.setSelected(CopyRequestResponseConfiguration.enableJsonFormatting());
+        enableJsonFormattingCheckbox.addActionListener(event -> CopyRequestResponseConfiguration.setEnableJsonFormatting(enableJsonFormattingCheckbox.isSelected()));
+
         var panel = new JPanel();
         panel.setLayout(new MigLayout());
         panel.add(cutTextLabel);
@@ -60,6 +64,7 @@ public void keyReleased(KeyEvent e) {
         panel.add(copyFullFullOrSelectionHotKeyTextField, "grow, wrap");
         panel.add(copyFullHeaderLabel);
         panel.add(copyFullHeaderTextField, "grow, wrap");
+        panel.add(enableJsonFormattingCheckbox, "grow, wrap");
 
         this.dialog = new JDialog(CopyRequestResponseExtension.api().userInterface().swingUtils().suiteFrame(), true);
         this.dialog.setLocationRelativeTo(CopyRequestResponseExtension.api().userInterface().swingUtils().suiteFrame());
diff --git a/src/main/java/ch/csnc/burp/CopyRequestResponseCopyActions.java b/src/main/java/ch/csnc/burp/CopyRequestResponseCopyActions.java
index a09d27d..aa605f9 100644
--- a/src/main/java/ch/csnc/burp/CopyRequestResponseCopyActions.java
+++ b/src/main/java/ch/csnc/burp/CopyRequestResponseCopyActions.java
@@ -1,9 +1,13 @@
 package ch.csnc.burp;
 
 import burp.api.montoya.http.handler.TimingData;
+import burp.api.montoya.http.message.HttpMessage;
 import burp.api.montoya.http.message.HttpRequestResponse;
 import burp.api.montoya.http.message.responses.HttpResponse;
 import burp.api.montoya.ui.contextmenu.MessageEditorHttpRequestResponse;
+import burp.api.montoya.utilities.json.JsonNode;
+import burp.api.montoya.utilities.json.JsonParseException;
+
 import java.awt.Toolkit;
 import java.awt.datatransfer.StringSelection;
 import java.time.LocalDateTime;
@@ -16,15 +20,36 @@
 
 public class CopyRequestResponseCopyActions {
 
+    public static String httpMessageBodyToJson(HttpMessage httpMessage) {
+        if (!CopyRequestResponseConfiguration.enableJsonFormatting()) {
+            return httpMessage.toString().strip();
+        }
+
+        String messageHeaders = httpMessage.toString().substring(0, httpMessage.bodyOffset()).strip();
+        String messageBody = httpMessage.bodyToString();
+
+        try {
+            JsonNode jsonNode = JsonNode.jsonNode(messageBody);
+            messageBody = jsonNode.toJsonString();
+        } catch (JsonParseException | IllegalArgumentException e) {
+            // ignore if JSON cannot be parsed or the input is empty
+        }
+
+        return "%s\n\n%s".formatted(
+                messageHeaders,
+                messageBody
+        ).strip();
+    }
+
     public static void copyFullFull(List<HttpRequestResponse> requestResponses) {
         var text =
                 requestResponses
                         .stream()
                         .map(requestResponse ->
                                 "%s\n\n%s".formatted(
-                                        requestResponse.request().toString().strip(),
+                                        httpMessageBodyToJson(requestResponse.request()),
                                         Optional.ofNullable(requestResponse.response())
-                                                .map(HttpResponse::toString)
+                                                .map(CopyRequestResponseCopyActions::httpMessageBodyToJson)
                                                 .map(String::strip)
                                                 .orElse("")))
                         .collect(Collectors.joining("\n\n"));
@@ -37,7 +62,7 @@ public static void copyFullHeader(List<HttpRequestResponse> requestResponses) {
                 requestResponses
                         .stream()
                         .map(requestResponse -> {
-                            var requestString = requestResponse.request().toString().strip();
+                            var requestString = httpMessageBodyToJson(requestResponse.request());
 
                             var responseString = "";
                             if (requestResponse.hasResponse()) {
@@ -56,7 +81,7 @@ public static void copyFullHeader(List<HttpRequestResponse> requestResponses) {
 
     public static void copyFullHeaderPlusSelectedData(MessageEditorHttpRequestResponse editor) {
         var requestResponse = editor.requestResponse();
-        var requestString = requestResponse.request().toString().strip();
+        var requestString = httpMessageBodyToJson(requestResponse.request());
 
         Supplier<String> responseStringSupplier = () -> {
             if (!requestResponse.hasResponse()) {