diff --git a/app/main.py b/app/main.py
index 5e4dea3..c3b1dff 100644
--- a/app/main.py
+++ b/app/main.py
@@ -1,5 +1,6 @@
 import subprocess, json, time, re, os, http.client, socket as _socket
 from typing import Optional
+from concurrent.futures import ThreadPoolExecutor
 
 import psutil
 import cpuinfo
@@ -723,4 +724,45 @@ def api_dockernet():
     return {"networks": result, "ts": int(now)}
 
 
+# ─────────────────────────────────────────────────────── DOCKERMEM ──
+
+def _container_mem(c: dict) -> Optional[dict]:
+    """RAM réellement utilisée par un conteneur (usage - cache, comme `docker stats`)."""
+    cid = c.get("Id")
+    name = c.get("Names", [""])[0].lstrip("/")
+    try:
+        stats = _docker_api(f"/containers/{cid}/stats?stream=false")
+        mem = stats.get("memory_stats", {})
+        usage = mem.get("usage", 0)
+        sub = mem.get("stats", {}).get("inactive_file", mem.get("stats", {}).get("cache", 0))
+        used = max(0, usage - sub)
+        limit = mem.get("limit", 0)
+        return {
+            "name": name,
+            "mem_bytes": used,
+            "mem_limit": limit,
+            "mem_pct": (used / limit * 100) if limit else 0,
+        }
+    except Exception:
+        return None
+
+
+@app.get("/api/dockermem")
+def api_dockermem():
+    try:
+        containers = _docker_api("/containers/json")
+    except Exception:
+        return {"containers": [], "ts": int(time.time())}
+
+    # Docker échantillonne cpu/precpu à ~1s d'intervalle même avec stream=false
+    # (le endpoint stats renvoie toujours les deux) : avec 60+ conteneurs il faut
+    # tout lancer en parallèle (pas de petit pool) pour rester sous quelques secondes.
+    with ThreadPoolExecutor(max_workers=max(1, len(containers))) as ex:
+        results = list(ex.map(_container_mem, containers))
+
+    result = [r for r in results if r]
+    result.sort(key=lambda x: x["mem_bytes"], reverse=True)
+    return {"containers": result, "ts": int(time.time())}
+
+
 app.mount("/", StaticFiles(directory="/app/static", html=True), name="static")
diff --git a/static/index.html b/static/index.html
index 42b4a74..5262b8b 100644
--- a/static/index.html
+++ b/static/index.html
@@ -125,6 +125,11 @@
   .netmap-status { font-size: 12px; color: var(--muted); }
   .netmap-name-input { background: #21262d; border: 1px solid var(--border); color: var(--text); border-radius: 5px; padding: 3px 8px; font-size: 12px; width: 130px; transition: border-color .15s; }
   .netmap-name-input:focus { outline: none; border-color: var(--accent); }
+
+  /* DOCKERMEM */
+  .dm-toolbar { display: flex; gap: 8px; align-items: center; margin-bottom: 8px; font-size: 13px; }
+  .dm-toolbar input[type="number"] { background: #21262d; border: 1px solid var(--border); color: var(--text); border-radius: 5px; padding: 3px 8px; font-size: 12px; width: 70px; }
+  .dm-toolbar input[type="number"]:focus { outline: none; border-color: var(--accent); }
   .netmap-save-btn { background: none; border: 1px solid var(--border); color: var(--accent); border-radius: 5px; padding: 3px 10px; font-size: 11px; cursor: pointer; transition: background .15s; }
   .netmap-save-btn:hover { background: #21262d; }
   .netmap-flash { font-size: 11px; color: var(--green); width: 14px; display: inline-block; }
@@ -404,6 +409,15 @@ function build_ui(os, hw, raid) {
     '<div id="netconn-body"><span style="color:var(--muted)">Chargement…</span></div>'
   ));
 
+  // DockerMem
+  grid.appendChild(make_card('card-dockermem','col-12','💾','RAM par conteneur — live',
+    `<div class="dm-toolbar">
+      Seuil : <input type="number" id="dockermem-threshold" min="0" step="10" value="${dmThreshold}" oninput="dmOnThresholdChange(this)"> Mo
+      <span style="color:var(--muted);font-size:12px">— jusqu'à 20 conteneurs affichés, triés par RAM décroissante</span>
+    </div>
+    <div id="dockermem-body"><span style="color:var(--muted)">Chargement…</span></div>`
+  ));
+
   // NetMap
   grid.appendChild(make_card('card-netmap','col-12','📡','Appareils réseau — 192.168.1.10–150',
     `<div class="netmap-toolbar">
@@ -558,6 +572,49 @@ function dnRender(nets) {
   </table>`;
 }
 
+// ──────────────────────────────── dockermem ──
+let dmThreshold = parseInt(localStorage.getItem('dm_threshold_mb') || '50', 10);
+let _dmLastContainers = [];
+
+async function dmRefresh() {
+  try {
+    const data = await fetch('/api/dockermem').then(r => r.json());
+    _dmLastContainers = data.containers || [];
+    dmRender(_dmLastContainers);
+  } catch { /* silencieux */ }
+}
+
+function dmOnThresholdChange(input) {
+  const v = parseInt(input.value, 10);
+  dmThreshold = Number.isFinite(v) && v >= 0 ? v : 0;
+  localStorage.setItem('dm_threshold_mb', String(dmThreshold));
+  dmRender(_dmLastContainers);
+}
+
+function dmRender(containers) {
+  const el = document.getElementById('dockermem-body');
+  if (!el) return;
+  const thresholdBytes = dmThreshold * 1024 * 1024;
+  const rows = containers.filter(c => c.mem_bytes >= thresholdBytes).slice(0, 20);
+  if (!rows.length) {
+    el.innerHTML = `<span style="color:var(--muted)">Aucun conteneur au-dessus de ${dmThreshold} Mo</span>`;
+    return;
+  }
+  const trs = rows.map(c => {
+    const pct = c.mem_pct || 0;
+    const pctColor = pct > 50 ? 'var(--red)' : (pct > 20 ? 'var(--yellow)' : 'var(--muted)');
+    return `<tr>
+      <td class="nc-ip">${c.name}</td>
+      <td class="nc-bps">${fmt_bytes(c.mem_bytes)}</td>
+      <td style="color:${pctColor}">${pct.toFixed(1)}%</td>
+    </tr>`;
+  }).join('');
+  el.innerHTML = `<table class="nc-table">
+    <thead><tr><th>Conteneur</th><th>RAM utilisée</th><th>% limite</th></tr></thead>
+    <tbody>${trs}</tbody>
+  </table>`;
+}
+
 // ──────────────────────────────── netconn ──
 let _ncNames = {};
 
@@ -693,6 +750,7 @@ async function init() {
   // Premiers chargements
   dnRefresh();
   ncRefresh();
+  dmRefresh();
 
   setInterval(async () => {
     try {
@@ -700,6 +758,7 @@ async function init() {
       update_live(live);
       dnRefresh();
       ncRefresh();
+      dmRefresh();
     } catch {
       document.getElementById('refresh-dot').style.background = 'var(--red)';
     }