diff --git a/desktop/app.js b/desktop/app.js
index 336b336..575529f 100644
--- a/desktop/app.js
+++ b/desktop/app.js
@@ -27,12 +27,12 @@ const state = {
     deepFilterModule: null,
     viewMode: 'chat', // 'chat' or 'video'
     iceServers: [{ urls: "stun:stun.l.google.com:19302" }],
+    peerGainNodes: new Map(), // userId -> GainNode
   },
   voicePresencePollId: null,
-  chatWs: null,
-  lastMessageId: null,
   onlineUsers: new Set(),
   idleUsers: new Set(),
+  userVolumes: new Map(), // userId -> volume (0.0 to 2.0)
 };
 
 // --- Desktop Backend Configuration ---
@@ -411,7 +411,48 @@ function renderChannels() {
           const pRow = document.createElement("div");
           pRow.className = `channel-row ${p.is_speaking ? 'voice-speaking' : ''}`;
           pRow.style.padding = "2px 8px";
-          pRow.innerHTML = `<div class="avatar" style="width:20px;height:20px;font-size:10px">${shortName(p.display_name)}</div> <span>${escapeHtml(p.display_name)}</span>${p.is_muted ? '<i data-lucide="mic-off" class="voice-muted-icon"></i>' : ''}`;
+          pRow.style.flexWrap = "wrap";
+
+          let sliderHtml = '';
+          if (p.user_id !== state.me.id) {
+            const vol = state.userVolumes.get(p.user_id) ?? 1.0;
+            sliderHtml = `
+              <div class="user-volume-control" style="width: 100%; display: flex; align-items: center; gap: 8px; padding-left: 28px; margin-top: 2px;">
+                <i data-lucide="volume-2" style="width: 12px; height: 12px; opacity: 0.6;"></i>
+                <input type="range" min="0" max="2" step="0.1" value="${vol}" 
+                  class="volume-slider" 
+                  data-user-id="${p.user_id}"
+                  style="flex: 1; height: 4px; cursor: pointer;">
+                <span class="vol-pct" style="font-size: 10px; opacity: 0.6; min-width: 25px;">${Math.round(vol * 100)}%</span>
+              </div>
+            `;
+          }
+
+          pRow.innerHTML = `
+            <div style="display: flex; align-items: center; gap: 8px; width: 100%;">
+              <div class="avatar" style="width:20px;height:20px;font-size:10px">${shortName(p.display_name)}</div> 
+              <span style="flex: 1; overflow: hidden; text-overflow: ellipsis;">${escapeHtml(p.display_name)}</span>
+              ${p.is_muted ? '<i data-lucide="mic-off" class="voice-muted-icon"></i>' : ''}
+            </div>
+            ${sliderHtml}
+          `;
+
+          const slider = pRow.querySelector('.volume-slider');
+          if (slider) {
+            slider.addEventListener('input', (e) => {
+              const val = parseFloat(e.target.value);
+              state.userVolumes.set(p.user_id, val);
+              pRow.querySelector('.vol-pct').textContent = `${Math.round(val * 100)}%`;
+
+              const gainNode = state.voice.peerGainNodes.get(p.user_id);
+              if (gainNode) {
+                gainNode.gain.setTargetAtTime(val, state.voice.audioContext.currentTime, 0.05);
+              }
+            });
+            // Stop propagation to prevent joining channel again when clicking slider
+            slider.addEventListener('click', (e) => e.stopPropagation());
+          }
+
           pList.appendChild(pRow);
         }
         el.voiceChannelList.appendChild(pList);
@@ -1047,7 +1088,6 @@ function ensurePeerConnection(peerId) {
         document.body.appendChild(audio);
       }
       audio.muted = false;
-      audio.volume = 1;
       audio.srcObject = new MediaStream([event.track]);
       const tryPlay = () => {
         const playPromise = audio.play();
@@ -1060,6 +1100,28 @@ function ensurePeerConnection(peerId) {
       audio.onloadedmetadata = tryPlay;
       audio.oncanplay = tryPlay;
       tryPlay();
+
+      // Web Audio Pipeline for Volume Boosting
+      if (!state.voice.audioContext) {
+        state.voice.audioContext = new (window.AudioContext || window.webkitAudioContext)();
+      }
+      const ctx = state.voice.audioContext;
+      if (ctx.state === 'suspended') ctx.resume();
+
+      const sourceNode = ctx.createMediaStreamSource(audio.srcObject);
+      const gainNode = ctx.createGain();
+
+      const currentVolume = state.userVolumes.get(peerId) ?? 1.0;
+      gainNode.gain.setValueAtTime(currentVolume, ctx.currentTime);
+
+      sourceNode.connect(gainNode);
+      gainNode.connect(ctx.destination);
+
+      state.voice.peerGainNodes.set(peerId, gainNode);
+
+      // Mute the original element as we play through Web Audio destination
+      audio.volume = 0;
+      audio.muted = true;
     } else if (event.track.kind === "video") {
       const peer = state.members.find(m => m.id === peerId) || { display_name: "Unknown" };
       renderVideo(peerId, peer.display_name, stream, event.track.id);
diff --git a/desktop/styles.css b/desktop/styles.css
index f2dbdbb..70cca56 100644
--- a/desktop/styles.css
+++ b/desktop/styles.css
@@ -563,6 +563,33 @@ select {
   vertical-align: text-bottom;
 }
 
+.volume-slider {
+  -webkit-appearance: none;
+  background: var(--bg-darker);
+  border-radius: 2px;
+  outline: none;
+}
+
+.volume-slider::-webkit-slider-thumb {
+  -webkit-appearance: none;
+  appearance: none;
+  width: 10px;
+  height: 10px;
+  border-radius: 50%;
+  background: var(--brand);
+  cursor: pointer;
+  box-shadow: 0 0 4px var(--brand-glow);
+}
+
+.volume-slider::-moz-range-thumb {
+  width: 10px;
+  height: 10px;
+  border-radius: 50%;
+  background: var(--brand);
+  cursor: pointer;
+  box-shadow: 0 0 4px var(--brand-glow);
+}
+
 .user-info {
   flex: 1;
   min-width: 0;
diff --git a/static/app.js b/static/app.js
index c226014..24e12b1 100644
--- a/static/app.js
+++ b/static/app.js
@@ -27,12 +27,14 @@ const state = {
     deepFilterModule: null,
     viewMode: 'chat', // 'chat' or 'video'
     iceServers: [{ urls: "stun:stun.l.google.com:19302" }],
+    peerGainNodes: new Map(), // userId -> GainNode
   },
   voicePresencePollId: null,
   chatWs: null,
   lastMessageId: null,
   onlineUsers: new Set(),
   idleUsers: new Set(),
+  userVolumes: new Map(), // userId -> volume (0.0 to 2.0)
 };
 
 
@@ -364,7 +366,48 @@ function renderChannels() {
           const pRow = document.createElement("div");
           pRow.className = `channel-row ${p.is_speaking ? 'voice-speaking' : ''}`;
           pRow.style.padding = "2px 8px";
-          pRow.innerHTML = `<div class="avatar" style="width:20px;height:20px;font-size:10px">${shortName(p.display_name)}</div> <span>${escapeHtml(p.display_name)}</span>${p.is_muted ? '<i data-lucide="mic-off" class="voice-muted-icon"></i>' : ''}`;
+          pRow.style.flexWrap = "wrap";
+
+          let sliderHtml = '';
+          if (p.user_id !== state.me.id) {
+            const vol = state.userVolumes.get(p.user_id) ?? 1.0;
+            sliderHtml = `
+              <div class="user-volume-control" style="width: 100%; display: flex; align-items: center; gap: 8px; padding-left: 28px; margin-top: 2px;">
+                <i data-lucide="volume-2" style="width: 12px; height: 12px; opacity: 0.6;"></i>
+                <input type="range" min="0" max="2" step="0.1" value="${vol}" 
+                  class="volume-slider" 
+                  data-user-id="${p.user_id}"
+                  style="flex: 1; height: 4px; cursor: pointer;">
+                <span class="vol-pct" style="font-size: 10px; opacity: 0.6; min-width: 25px;">${Math.round(vol * 100)}%</span>
+              </div>
+            `;
+          }
+
+          pRow.innerHTML = `
+            <div style="display: flex; align-items: center; gap: 8px; width: 100%;">
+              <div class="avatar" style="width:20px;height:20px;font-size:10px">${shortName(p.display_name)}</div> 
+              <span style="flex: 1; overflow: hidden; text-overflow: ellipsis;">${escapeHtml(p.display_name)}</span>
+              ${p.is_muted ? '<i data-lucide="mic-off" class="voice-muted-icon"></i>' : ''}
+            </div>
+            ${sliderHtml}
+          `;
+
+          const slider = pRow.querySelector('.volume-slider');
+          if (slider) {
+            slider.addEventListener('input', (e) => {
+              const val = parseFloat(e.target.value);
+              state.userVolumes.set(p.user_id, val);
+              pRow.querySelector('.vol-pct').textContent = `${Math.round(val * 100)}%`;
+
+              const gainNode = state.voice.peerGainNodes.get(p.user_id);
+              if (gainNode) {
+                gainNode.gain.setTargetAtTime(val, state.voice.audioContext.currentTime, 0.05);
+              }
+            });
+            // Stop propagation to prevent joining channel again when clicking slider
+            slider.addEventListener('click', (e) => e.stopPropagation());
+          }
+
           pList.appendChild(pRow);
         }
         el.voiceChannelList.appendChild(pList);
@@ -987,7 +1030,6 @@ function ensurePeerConnection(peerId) {
         document.body.appendChild(audio);
       }
       audio.muted = false;
-      audio.volume = 1;
       audio.srcObject = new MediaStream([event.track]);
       const tryPlay = () => {
         const playPromise = audio.play();
@@ -1000,6 +1042,28 @@ function ensurePeerConnection(peerId) {
       audio.onloadedmetadata = tryPlay;
       audio.oncanplay = tryPlay;
       tryPlay();
+
+      // Web Audio Pipeline for Volume Boosting
+      if (!state.voice.audioContext) {
+        state.voice.audioContext = new (window.AudioContext || window.webkitAudioContext)();
+      }
+      const ctx = state.voice.audioContext;
+      if (ctx.state === 'suspended') ctx.resume();
+
+      const sourceNode = ctx.createMediaStreamSource(audio.srcObject);
+      const gainNode = ctx.createGain();
+
+      const currentVolume = state.userVolumes.get(peerId) ?? 1.0;
+      gainNode.gain.setValueAtTime(currentVolume, ctx.currentTime);
+
+      sourceNode.connect(gainNode);
+      gainNode.connect(ctx.destination);
+
+      state.voice.peerGainNodes.set(peerId, gainNode);
+
+      // Mute the original element as we play through Web Audio destination
+      audio.volume = 0;
+      audio.muted = true;
     } else if (event.track.kind === "video") {
       const peer = state.members.find(m => m.id === peerId) || { display_name: "Unknown" };
       renderVideo(peerId, peer.display_name, stream, event.track.id);
diff --git a/static/styles.css b/static/styles.css
index f12cd12..59fd145 100644
--- a/static/styles.css
+++ b/static/styles.css
@@ -584,6 +584,33 @@ select {
   vertical-align: text-bottom;
 }
 
+.volume-slider {
+  -webkit-appearance: none;
+  background: var(--bg-darker);
+  border-radius: 2px;
+  outline: none;
+}
+
+.volume-slider::-webkit-slider-thumb {
+  -webkit-appearance: none;
+  appearance: none;
+  width: 10px;
+  height: 10px;
+  border-radius: 50%;
+  background: var(--brand);
+  cursor: pointer;
+  box-shadow: 0 0 4px var(--brand-glow);
+}
+
+.volume-slider::-moz-range-thumb {
+  width: 10px;
+  height: 10px;
+  border-radius: 50%;
+  background: var(--brand);
+  cursor: pointer;
+  box-shadow: 0 0 4px var(--brand-glow);
+}
+
 .user-info {
   flex: 1;
   min-width: 0;