diff --git a/dust3d.pro b/dust3d.pro
index 0d1017e9..e3856ec5 100644
--- a/dust3d.pro
+++ b/dust3d.pro
@@ -508,6 +508,9 @@ HEADERS += src/simulateclothmeshes.h
 SOURCES += src/ddsfile.cpp
 HEADERS += src/ddsfile.h
 
+SOURCES += src/fileforever.cpp
+HEADERS += src/fileforever.h
+
 SOURCES += src/main.cpp
 
 HEADERS += src/version.h
diff --git a/src/fileforever.cpp b/src/fileforever.cpp
new file mode 100644
index 00000000..1a9c6283
--- /dev/null
+++ b/src/fileforever.cpp
@@ -0,0 +1,54 @@
+#include <map>
+#include <QMutex>
+#include <QMutexLocker>
+#include <QtCore/qbuffer.h>
+#include <QFile>
+#include "fileforever.h"
+
+struct FileForeverItem
+{
+    QString name;
+    QUuid id;
+    QByteArray *byteArray;
+};
+static std::map<QUuid, FileForeverItem> g_foreverMap;
+static QMutex g_mapMutex;
+
+const QString *FileForever::getName(const QUuid &id)
+{
+    QMutexLocker locker(&g_mapMutex);
+    auto findResult = g_foreverMap.find(id);
+    if (findResult == g_foreverMap.end())
+        return nullptr;
+    return &findResult->second.name;
+}
+
+const QByteArray *FileForever::getContent(const QUuid &id)
+{
+    QMutexLocker locker(&g_mapMutex);
+    auto findResult = g_foreverMap.find(id);
+    if (findResult == g_foreverMap.end())
+        return nullptr;
+    return findResult->second.byteArray;
+}
+
+QUuid FileForever::add(const QString &name, const QByteArray &content, QUuid toId)
+{
+    QMutexLocker locker(&g_mapMutex);
+    QUuid newId = toId.isNull() ? QUuid::createUuid() : toId;
+    if (g_foreverMap.find(newId) != g_foreverMap.end())
+        return newId;
+    QByteArray *byteArray = new QByteArray(content);
+    g_foreverMap[newId] = {name, newId, byteArray};
+    return newId;
+}
+
+void FileForever::remove(const QUuid &id)
+{
+    QMutexLocker locker(&g_mapMutex);
+    auto findFile = g_foreverMap.find(id);
+    if (findFile == g_foreverMap.end())
+        return;
+    delete findFile->second.byteArray;
+    g_foreverMap.erase(id);
+}
diff --git a/src/fileforever.h b/src/fileforever.h
new file mode 100644
index 00000000..e9c118e6
--- /dev/null
+++ b/src/fileforever.h
@@ -0,0 +1,16 @@
+#ifndef DUST3D_FILE_FOREVER_H
+#define DUST3D_FILE_FOREVER_H
+#include <QUuid>
+#include <QByteArray>
+#include <QString>
+
+class FileForever
+{
+public:
+    static const QString *getName(const QUuid &id);
+    static const QByteArray *getContent(const QUuid &id);
+    static QUuid add(const QString &name, const QByteArray &content, QUuid toId=QUuid());
+    static void remove(const QUuid &id);
+};
+
+#endif