diff --git a/public/index.html b/public/index.html
index 513c1d1..bd2e62d 100644
--- a/public/index.html
+++ b/public/index.html
@@ -467,7 +467,7 @@ body::before{content:'';position:fixed;inset:0;background:radial-gradient(ellips
         <button class="mode-btn" id="btn-udp" disabled style="opacity:.4;cursor:not-allowed;pointer-events:none">🖥️ Electron App</button>
       </div>
       <div class="mode-desc" id="mode-desc" style="margin-bottom:0">
-        <strong id="mode-label">HTTP Mode:</strong> <span id="mode-detail">Parallel chunked HTTP upload (6 concurrent 32 MB parts). Aspera-class speed — no UDP needed.</span>
+        <strong id="mode-label">HTTP Mode:</strong> <span id="mode-detail">Direct HTTP upload to S3-compatible storage (up to 4 concurrent files). Compatible with RustFS, MinIO, and AWS S3.</span>
       </div>
       <div style="text-align:right;margin-top:.3rem;font-size:.7rem;color:var(--text-dim);opacity:.6">Electron App — Aspera-speed desktop application (coming soon)</div>
     </div>
@@ -934,7 +934,7 @@ function setMode(mode) {
   if (mode === 'http') {
     btn.className = 'btn-upload';
     if (label) label.textContent = 'HTTP Mode:';
-    if (detail) detail.textContent = 'Parallel chunked HTTP upload (6 concurrent 32 MB parts). Aspera-class speed — no UDP needed.';
+    if (detail) detail.textContent = 'Direct HTTP upload to S3-compatible storage (up to 4 concurrent files). Compatible with RustFS, MinIO, and AWS S3.';
     if (hint) hint.style.display = 'none';
     if (btnHttp) { btnHttp.className = 'mode-btn active-http'; }
     if (btnUdp) { btnUdp.className = 'mode-btn'; }
@@ -1090,7 +1090,7 @@ async function startUpload() {
 }
 
 // ============================================================
-// SIMPLE UPLOAD — uses /api/upload with @aws-sdk/lib-storage on server
+// SIMPLE UPLOAD — uses /api/upload with PutObjectCommand on server
 // Compatible with RustFS / MinIO / generic S3 endpoints.
 // XMLHttpRequest used for upload progress tracking.
 // ============================================================