diff --git a/src/plugins/qmldesigner/components/assetslibrary/assetslibrarymodel.cpp b/src/plugins/qmldesigner/components/assetslibrary/assetslibrarymodel.cpp
index 9d09f52d8ff..09ec468905d 100644
--- a/src/plugins/qmldesigner/components/assetslibrary/assetslibrarymodel.cpp
+++ b/src/plugins/qmldesigner/components/assetslibrary/assetslibrarymodel.cpp
@@ -3,13 +3,16 @@
 
 #include "assetslibrarymodel.h"
 
-#include <asset.h>
 #include <modelnodeoperations.h>
 #include <qmldesignerplugin.h>
 
 #include <coreplugin/icore.h>
+
 #include <utils/algorithm.h>
+#include <utils/asset.h>
+#include <utils/filepath.h>
 #include <utils/filesystemwatcher.h>
+#include <utils/uniquename.h>
 
 #include <QFileInfo>
 #include <QFileSystemModel>
@@ -151,16 +154,20 @@ bool AssetsLibraryModel::renameFolder(const QString &folderPath, const QString &
 
 QString AssetsLibraryModel::addNewFolder(const QString &folderPath)
 {
-    QString iterPath = folderPath;
-    QDir dir{folderPath};
+    Utils::FilePath dir = Utils::FilePath::fromString(folderPath);
+    Utils::FilePath parentDir = dir.parentDir();
 
-    while (dir.exists()) {
-        iterPath = getUniqueName(iterPath);
+    QString uniqueFolderName = UniqueName::get(dir.fileName(), [&] (const QString &folderName) {
+        return !parentDir.pathAppended(folderName).exists();
+    });
 
-        dir.setPath(iterPath);
+    auto res = parentDir.pathAppended(uniqueFolderName).ensureWritableDir();
+    if (!res.has_value()) {
+        qWarning() << __FUNCTION__ << res.error();
+        return {};
     }
 
-    return dir.mkpath(iterPath) ? iterPath : "";
+    return uniqueFolderName;
 }
 
 bool AssetsLibraryModel::urlPathExistsInModel(const QUrl &url) const
@@ -242,36 +249,6 @@ void AssetsLibraryModel::syncHasFiles()
     setHasFiles(checkHasFiles());
 }
 
-QString AssetsLibraryModel::getUniqueName(const QString &oldName) {
-    static QRegularExpression rgx("\\d+$"); // matches a number at the end of a string
-
-    QString uniqueName = oldName;
-    // if the folder name ends with a number, increment it
-    QRegularExpressionMatch match = rgx.match(uniqueName);
-    if (match.hasMatch()) { // ends with a number
-        QString numStr = match.captured(0);
-        int num = match.captured(0).toInt();
-
-        // get number of padding zeros, ex: for "005" = 2
-        int nPaddingZeros = 0;
-        for (; nPaddingZeros < numStr.size() && numStr[nPaddingZeros] == '0'; ++nPaddingZeros);
-
-        ++num;
-
-        // if the incremented number's digits increased, decrease the padding zeros
-        if (std::fmod(std::log10(num), 1.0) == 0)
-            --nPaddingZeros;
-
-        uniqueName = oldName.mid(0, match.capturedStart())
-                   + QString('0').repeated(nPaddingZeros)
-                   + QString::number(num);
-    } else {
-        uniqueName = oldName + '1';
-    }
-
-    return uniqueName;
-}
-
 void AssetsLibraryModel::setRootPath(const QString &newPath)
 {
     beginResetModel();
diff --git a/src/plugins/qmldesigner/components/assetslibrary/assetslibrarymodel.h b/src/plugins/qmldesigner/components/assetslibrary/assetslibrarymodel.h
index 2516be787fc..f08578651af 100644
--- a/src/plugins/qmldesigner/components/assetslibrary/assetslibrarymodel.h
+++ b/src/plugins/qmldesigner/components/assetslibrary/assetslibrarymodel.h
@@ -58,8 +58,6 @@ public:
 
     bool hasFiles() const { return m_hasFiles; }
 
-    QString getUniqueName(const QString &oldName);
-
 signals:
     void directoryLoaded(const QString &path);
     void rootPathChanged();
diff --git a/src/plugins/qmldesigner/components/assetslibrary/assetslibrarywidget.cpp b/src/plugins/qmldesigner/components/assetslibrary/assetslibrarywidget.cpp
index 5b6a2d76127..9c46ace22d0 100644
--- a/src/plugins/qmldesigner/components/assetslibrary/assetslibrarywidget.cpp
+++ b/src/plugins/qmldesigner/components/assetslibrary/assetslibrarywidget.cpp
@@ -7,7 +7,6 @@
 #include "assetslibrarymodel.h"
 #include "assetslibraryview.h"
 
-#include <asset.h>
 #include <designeractionmanager.h>
 #include <designerpaths.h>
 #include <hdrimage.h>
@@ -25,9 +24,11 @@
 #include <coreplugin/messagebox.h>
 
 #include <utils/algorithm.h>
+#include <utils/asset.h>
 #include <utils/environment.h>
 #include <utils/filepath.h>
 #include <utils/qtcassert.h>
+#include <utils/uniquename.h>
 
 #include <QFileDialog>
 #include <QFileInfo>
@@ -174,23 +175,14 @@ void AssetsLibraryWidget::deleteSelectedAssets()
 
 QString AssetsLibraryWidget::getUniqueEffectPath(const QString &parentFolder, const QString &effectName)
 {
-    auto genEffectPath = [&parentFolder](const QString &name) {
-        QString effectsDir = ModelNodeOperations::getEffectsDefaultDirectory(parentFolder);
-        return QLatin1String("%1/%2.qep").arg(effectsDir, name);
-    };
+    QString effectsDir = ModelNodeOperations::getEffectsDefaultDirectory(parentFolder);
+    QString effectPathTemplate = effectsDir + QLatin1String("/%1.qep");
 
-    QString uniqueName = effectName;
-    QString path = genEffectPath(uniqueName);
-    QFileInfo file{path};
+    QString uniqueName = UniqueName::get(effectName, [&] (const QString &name) {
+        return !QFile::exists(effectPathTemplate.arg(name));
+    });
 
-    while (file.exists()) {
-        uniqueName = m_assetsModel->getUniqueName(uniqueName);
-
-        path = genEffectPath(uniqueName);
-        file.setFile(path);
-    }
-
-    return path;
+    return effectPathTemplate.arg(uniqueName);
 }
 
 bool AssetsLibraryWidget::createNewEffect(const QString &effectPath, bool openInEffectComposer)