diff --git a/plugins/promptfoo/src/parsers/curl.test.ts b/plugins/promptfoo/src/parsers/curl.test.ts
new file mode 100644
index 0000000..9831449
--- /dev/null
+++ b/plugins/promptfoo/src/parsers/curl.test.ts
@@ -0,0 +1,26 @@
+import { describe, expect, it } from 'vitest';
+
+import { parseCurl } from './curl.js';
+
+describe('parseCurl', () => {
+  it('ignores unquoted inline comments', () => {
+    const parsed = parseCurl("curl https://example.com/api # explain the request");
+
+    expect(parsed.url).toBe('https://example.com/api');
+  });
+
+  it('preserves hash characters inside quoted headers', () => {
+    const parsed = parseCurl(
+      "curl https://example.com/api -H 'Authorization: Bearer abc#123' -H 'X-Trace: keep#me'"
+    );
+
+    expect(parsed.headers.Authorization).toBe('Bearer abc#123');
+    expect(parsed.headers['X-Trace']).toBe('keep#me');
+  });
+
+  it('preserves escaped hash characters outside quotes', () => {
+    const parsed = parseCurl('curl https://example.com/api --data token=abc\\#123');
+
+    expect(parsed.body).toEqual({ token: 'abc#123' });
+  });
+});
diff --git a/plugins/promptfoo/src/parsers/curl.ts b/plugins/promptfoo/src/parsers/curl.ts
index 968d7a1..e3e8342 100644
--- a/plugins/promptfoo/src/parsers/curl.ts
+++ b/plugins/promptfoo/src/parsers/curl.ts
@@ -24,7 +24,7 @@ export function parseCurl(command: string): ParsedArtifact {
   // Remove comments and normalize whitespace
   const cleaned = raw
     .split('\n')
-    .map((line) => line.replace(/#.*$/, '').trim())
+    .map((line) => stripInlineComment(line).trim())
     .join(' ')
     .replace(/\\\s+/g, ' ') // Handle line continuations
     .replace(/\s+/g, ' ')
@@ -76,6 +76,43 @@ export function parseCurl(command: string): ParsedArtifact {
   };
 }
 
+function stripInlineComment(line: string): string {
+  let inQuote: string | null = null;
+  let escaped = false;
+
+  for (let i = 0; i < line.length; i++) {
+    const char = line[i];
+
+    if (escaped) {
+      escaped = false;
+      continue;
+    }
+
+    if (char === '\\') {
+      escaped = true;
+      continue;
+    }
+
+    if (inQuote) {
+      if (char === inQuote) {
+        inQuote = null;
+      }
+      continue;
+    }
+
+    if (char === '"' || char === "'") {
+      inQuote = char;
+      continue;
+    }
+
+    if (char === '#') {
+      return line.slice(0, i);
+    }
+  }
+
+  return line;
+}
+
 /**
  * Tokenize a curl command, handling quoted strings
  */