diff --git a/qrenderdoc/Windows/Dialogs/LiveCapture.cpp b/qrenderdoc/Windows/Dialogs/LiveCapture.cpp
index 80cf71f0d..7853d5cf6 100644
--- a/qrenderdoc/Windows/Dialogs/LiveCapture.cpp
+++ b/qrenderdoc/Windows/Dialogs/LiveCapture.cpp
@@ -673,11 +673,14 @@ QString LiveCapture::MakeText(Capture *cap)
 
   text += lit("\n") + cap->api;
   if(cap->frameNumber == ~0U)
-    text += tr("\nUser-defined Capture ");
+    text += tr("\nUser-defined Capture");
   else
-    text += tr("\nFrame #%1 ").arg(cap->frameNumber);
+    text += tr("\nFrame #%1").arg(cap->frameNumber);
 
-  text += cap->timestamp.toString(lit("yyyy-MM-dd HH:mm:ss"));
+  if(cap->byteSize > 0)
+    text += QFormatStr(" (%1 MB)").arg(double(cap->byteSize) / 1000000.0, 0, 'f', 2);
+
+  text += cap->timestamp.toString(lit("\nyyyy-MM-dd HH:mm:ss"));
 
   return text;
 }
@@ -1045,6 +1048,7 @@ void LiveCapture::captureAdded(const NewCaptureData &newCapture)
 
   cap->timestamp =
       QDateTime(QDate(1970, 1, 1), QTime(0, 0, 0), Qt::UTC).addSecs(newCapture.timestamp).toLocalTime();
+  cap->byteSize = newCapture.byteSize;
 
   cap->thumb = QImage(newCapture.thumbnail.data(), newCapture.thumbWidth, newCapture.thumbHeight,
                       newCapture.thumbWidth * 3, QImage::Format_RGB888)
diff --git a/qrenderdoc/Windows/Dialogs/LiveCapture.h b/qrenderdoc/Windows/Dialogs/LiveCapture.h
index 510aeb03d..3a45e5e1f 100644
--- a/qrenderdoc/Windows/Dialogs/LiveCapture.h
+++ b/qrenderdoc/Windows/Dialogs/LiveCapture.h
@@ -103,6 +103,7 @@ private:
     QString api;
     QDateTime timestamp;
     uint32_t frameNumber;
+    uint64_t byteSize;
 
     QImage thumb;
 
diff --git a/renderdoc/api/replay/control_types.h b/renderdoc/api/replay/control_types.h
index 4d91b6de7..6b573a98e 100644
--- a/renderdoc/api/replay/control_types.h
+++ b/renderdoc/api/replay/control_types.h
@@ -468,6 +468,8 @@ struct NewCaptureData
   uint32_t frameNumber = 0;
   DOCUMENT("The time the capture was created, as a unix timestamp in UTC.");
   uint64_t timestamp = 0;
+  DOCUMENT("The size of the capture, in bytes.");
+  uint64_t byteSize = 0;
   DOCUMENT("The raw bytes that contain the capture thumbnail, as RGB8 data.");
   bytebuf thumbnail;
   DOCUMENT("The width of the image contained in :data:`thumbnail`.");
diff --git a/renderdoc/core/target_control.cpp b/renderdoc/core/target_control.cpp
index b6666cd67..7a44ab6ab 100644
--- a/renderdoc/core/target_control.cpp
+++ b/renderdoc/core/target_control.cpp
@@ -32,7 +32,7 @@
 #include "replay/replay_driver.h"
 #include "serialise/serialiser.h"
 
-static const uint32_t TargetControlProtocolVersion = 5;
+static const uint32_t TargetControlProtocolVersion = 6;
 
 static bool IsProtocolVersionSupported(const uint32_t protocolVersion)
 {
@@ -48,6 +48,10 @@ static bool IsProtocolVersionSupported(const uint32_t protocolVersion)
   if(protocolVersion == 4)
     return true;
 
+  // 5 -> 6 return byte size with new captures
+  if(protocolVersion == 5)
+    return true;
+
   if(protocolVersion == TargetControlProtocolVersion)
     return true;
 
@@ -232,6 +236,11 @@ void RenderDoc::TargetControlClientThread(uint32_t version, Network::Socket *cli
         {
           SERIALISE_ELEMENT(captures.back().frameNumber);
         }
+        if(version >= 6)
+        {
+          uint64_t byteSize = FileIO::GetFileSize(captures.back().path);
+          SERIALISE_ELEMENT(byteSize);
+        }
       }
     }
     else if(childprocs.size() != children.size())
@@ -755,6 +764,14 @@ public:
         {
           msg.newCapture.frameNumber = msg.newCapture.captureId + 1;
         }
+        if(m_Version >= 6)
+        {
+          SERIALISE_ELEMENT(msg.newCapture.byteSize).Named("byteSize"_lit);
+        }
+        else
+        {
+          msg.newCapture.byteSize = 0;
+        }
       }
 
       if(driver != RDCDriver::Unknown)
@@ -762,9 +779,9 @@ public:
 
       msg.newCapture.local = FileIO::exists(msg.newCapture.path.c_str());
 
-      RDCLOG("Got a new capture: %d (frame %u) (time %llu) %d byte thumbnail",
-             msg.newCapture.captureId, msg.newCapture.frameNumber, msg.newCapture.timestamp,
-             thumbnail.count());
+      RDCLOG("Got a new capture: %d (frame %u) (%u bytes) (time %llu) %d byte thumbnail",
+             msg.newCapture.captureId, msg.newCapture.frameNumber, msg.newCapture.byteSize,
+             msg.newCapture.timestamp, thumbnail.count());
 
       int w = 0;
       int h = 0;
diff --git a/renderdoc/os/os_specific.h b/renderdoc/os/os_specific.h
index b5f796d59..39867b27d 100644
--- a/renderdoc/os/os_specific.h
+++ b/renderdoc/os/os_specific.h
@@ -291,6 +291,7 @@ void GetExecutableFilename(rdcstr &selfName);
 void GetLibraryFilename(rdcstr &selfName);
 
 uint64_t GetModifiedTimestamp(const rdcstr &filename);
+uint64_t GetFileSize(const rdcstr &filename);
 
 bool Copy(const char *from, const char *to, bool allowOverwrite);
 bool Move(const char *from, const char *to, bool allowOverwrite);
diff --git a/renderdoc/os/posix/posix_stringio.cpp b/renderdoc/os/posix/posix_stringio.cpp
index dbd28659a..a0db5799c 100644
--- a/renderdoc/os/posix/posix_stringio.cpp
+++ b/renderdoc/os/posix/posix_stringio.cpp
@@ -249,6 +249,19 @@ uint64_t GetModifiedTimestamp(const rdcstr &filename)
   return 0;
 }
 
+uint64_t GetFileSize(const rdcstr &filename)
+{
+  struct ::stat st;
+  int res = stat(filename.c_str(), &st);
+
+  if(res == 0)
+  {
+    return (uint64_t)st.st_size;
+  }
+
+  return 0;
+}
+
 bool Copy(const char *from, const char *to, bool allowOverwrite)
 {
   if(from[0] == 0 || to[0] == 0)
diff --git a/renderdoc/os/win32/win32_stringio.cpp b/renderdoc/os/win32/win32_stringio.cpp
index 18771f8ef..abad26e0d 100644
--- a/renderdoc/os/win32/win32_stringio.cpp
+++ b/renderdoc/os/win32/win32_stringio.cpp
@@ -430,6 +430,21 @@ uint64_t GetModifiedTimestamp(const rdcstr &filename)
   return 0;
 }
 
+uint64_t GetFileSize(const rdcstr &filename)
+{
+  rdcwstr wfn = StringFormat::UTF82Wide(filename);
+
+  struct __stat64 st;
+  int res = _wstat64(wfn.c_str(), &st);
+
+  if(res == 0)
+  {
+    return (uint64_t)st.st_size;
+  }
+
+  return 0;
+}
+
 bool Copy(const char *from, const char *to, bool allowOverwrite)
 {
   rdcwstr wfrom = StringFormat::UTF82Wide(from);
@@ -696,7 +711,7 @@ rdcstr logfile_readall(const char *filename)
   }
   else
   {
-    DWORD len = GetFileSize(h, NULL);
+    DWORD len = ::GetFileSize(h, NULL);
 
     if(len == INVALID_FILE_SIZE)
     {