diff --git a/debug_quadrant_conversion.js b/debug_quadrant_conversion.js
new file mode 100644
index 0000000..5f3c83b
--- /dev/null
+++ b/debug_quadrant_conversion.js
@@ -0,0 +1,65 @@
+// Debug script to test different approaches for quadrant charts
+export const code = async (inputs) => {
+  const raw = String(inputs.diagram || "").trim();
+  if (!raw) throw new Error("No Mermaid input provided");
+  
+  // Normalize line endings first
+  let normalizedDiagram = raw
+    .replace(/\r\n/g, '\n')  // Convert Windows line endings
+    .replace(/\r/g, '\n');   // Convert old Mac line endings
+  
+  console.log("Original diagram:");
+  console.log(normalizedDiagram);
+  
+  // Check if it's already single line
+  if (!normalizedDiagram.includes('\n')) {
+    console.log("Already single line, returning as-is");
+    return { rawDsl: normalizedDiagram };
+  }
+  
+  // For quadrant charts, try different encoding methods
+  const firstWord = normalizedDiagram.split(/\s+/)[0];
+  
+  if (firstWord === 'quadrantChart') {
+    console.log("Quadrant chart detected - trying special encoding methods");
+    
+    // Method 1: Try different newline encoding
+    const method1 = normalizedDiagram.replace(/\n/g, '\\n');
+    console.log("Method 1 (\\n encoding):", method1);
+    
+    // Method 2: Try different marker
+    const method2 = normalizedDiagram.replace(/\n/g, ' | ');
+    console.log("Method 2 (pipe separator):", method2);
+    
+    // Method 3: Try preserving original with different content-type hint
+    const method3 = `PRESERVE_NEWLINES:${normalizedDiagram}`;
+    console.log("Method 3 (preserve hint):", method3);
+    
+    // Let's try method 2 first (pipe separator)
+    return { rawDsl: method2 };
+  }
+  
+  // Convert other types to single line with semicolons
+  const convertibleTypes = ['graph', 'flowchart', 'sequenceDiagram', 'pie', 'gitGraph'];
+  
+  if (convertibleTypes.some(type => firstWord.startsWith(type))) {
+    const lines = normalizedDiagram.split('\n');
+    const firstLine = lines[0];
+    const remainingLines = lines.slice(1)
+      .filter(line => line.trim())
+      .map(line => line.trim());
+    
+    const singleLine = firstLine + '; ' + remainingLines.join('; ');
+    console.log("Converted to single line:");
+    console.log(singleLine);
+    
+    return { rawDsl: singleLine };
+  }
+  
+  // For other non-convertible types, use NEWLINE encoding
+  const encodedDiagram = normalizedDiagram.replace(/\n/g, ' NEWLINE ');
+  console.log("Using NEWLINE encoding:");
+  console.log(encodedDiagram);
+  
+  return { rawDsl: encodedDiagram };
+};
diff --git a/internal/diagram.go b/internal/diagram.go
index 08d6535..3779a6d 100644
--- a/internal/diagram.go
+++ b/internal/diagram.go
@@ -28,6 +28,13 @@ func NewDiagram(description []byte, imgType string) *Diagram {
 		fmt.Printf("DEBUG: Now contains newlines: %t\n", strings.Contains(trimmed, "\n"))
 	}
 	
+	// Decode pipe separators back to newlines for quadrant charts
+	if strings.Contains(trimmed, " | ") {
+		trimmed = strings.ReplaceAll(trimmed, " | ", "\n")
+		fmt.Printf("DEBUG: After pipe decoding: %q\n", trimmed)
+		fmt.Printf("DEBUG: Now contains newlines: %t\n", strings.Contains(trimmed, "\n"))
+	}
+	
 	return &Diagram{
 		description: []byte(trimmed),
 		lastTouched: time.Now(),
diff --git a/quadrant_chart_examples.md b/quadrant_chart_examples.md
new file mode 100644
index 0000000..1f509d4
--- /dev/null
+++ b/quadrant_chart_examples.md
@@ -0,0 +1,69 @@
+# Quadrant Chart Examples (Fixed)
+
+These examples should work correctly with the updated conversion script that treats quadrant charts as convertible types:
+
+## 1. Simple Business Priority Matrix
+```
+quadrantChart
+    title Business Priorities
+    x-axis Low Effort --> High Effort
+    y-axis Low Impact --> High Impact
+    quadrant-1 Do First
+    quadrant-2 Schedule
+    quadrant-3 Delegate
+    quadrant-4 Eliminate
+    Task A: [0.3, 0.9]
+    Task B: [0.7, 0.7]
+    Task C: [0.2, 0.3]
+    Task D: [0.8, 0.2]
+```
+
+## 2. Product Analysis
+```
+quadrantChart
+    title Product Analysis
+    x-axis Low Cost --> High Cost
+    y-axis Low Value --> High Value
+    quadrant-1 Quick Wins
+    quadrant-2 Strategic
+    quadrant-3 Fill-ins
+    quadrant-4 Questionable
+    Product A: [0.2, 0.8]
+    Product B: [0.8, 0.9]
+    Product C: [0.3, 0.2]
+    Product D: [0.7, 0.3]
+```
+
+## 3. Technology Assessment
+```
+quadrantChart
+    title Technology Stack
+    x-axis Low Complexity --> High Complexity
+    y-axis Low ROI --> High ROI
+    quadrant-1 Adopt
+    quadrant-2 Trial
+    quadrant-3 Assess
+    quadrant-4 Hold
+    React: [0.3, 0.8]
+    Vue: [0.2, 0.7]
+    Angular: [0.8, 0.6]
+    jQuery: [0.1, 0.2]
+```
+
+## How This Will Convert:
+
+**Input (multiline):**
+```
+quadrantChart
+    title Business Priorities
+    x-axis Low Effort --> High Effort
+    y-axis Low Impact --> High Impact
+    quadrant-1 Do First
+```
+
+**Output (single line with semicolons):**
+```
+quadrantChart; title Business Priorities; x-axis Low Effort --> High Effort; y-axis Low Impact --> High Impact; quadrant-1 Do First
+```
+
+This should fix the text rendering issue where quadrant labels were getting concatenated!
diff --git a/updated_conversion_script.js b/updated_conversion_script.js
new file mode 100644
index 0000000..c226278
--- /dev/null
+++ b/updated_conversion_script.js
@@ -0,0 +1,52 @@
+// Updated smart mermaid conversion script with quadrantChart fix
+export const code = async (inputs) => {
+  const raw = String(inputs.diagram || "").trim();
+  if (!raw) throw new Error("No Mermaid input provided");
+  
+  // Normalize line endings first
+  let normalizedDiagram = raw
+    .replace(/\r\n/g, '\n')  // Convert Windows line endings
+    .replace(/\r/g, '\n');   // Convert old Mac line endings
+  
+  console.log("Original diagram:");
+  console.log(normalizedDiagram);
+  
+  // Check if it's already single line
+  if (!normalizedDiagram.includes('\n')) {
+    console.log("Already single line, returning as-is");
+    return { rawDsl: normalizedDiagram };
+  }
+  
+  // Convert multiline to single line with semicolons
+  // Added quadrantChart to convertible types to fix the text rendering issue
+  const convertibleTypes = ['graph', 'flowchart', 'sequenceDiagram', 'pie', 'gitGraph', 'quadrantChart'];
+  const firstWord = normalizedDiagram.split(/\s+/)[0];
+  
+  if (convertibleTypes.some(type => firstWord.startsWith(type))) {
+    // Convert newlines to semicolons, preserving the first line structure
+    const lines = normalizedDiagram.split('\n');
+    const firstLine = lines[0];
+    const remainingLines = lines.slice(1)
+      .filter(line => line.trim()) // Remove empty lines
+      .map(line => line.trim()); // Remove indentation
+    
+    const singleLine = firstLine + '; ' + remainingLines.join('; ');
+    
+    console.log("Converted to single line:");
+    console.log(singleLine);
+    
+    return { rawDsl: singleLine };
+  }
+  
+  // For non-convertible types (journey, stateDiagram, classDiagram), 
+  // try replacing newlines with specific delimiters that might work
+  console.log("Non-convertible type detected, using special encoding");
+  
+  // Try using a special marker that we can detect and replace on server side
+  const encodedDiagram = normalizedDiagram.replace(/\n/g, ' NEWLINE ');
+  
+  console.log("Encoded diagram:");
+  console.log(encodedDiagram);
+  
+  return { rawDsl: encodedDiagram };
+};