diff --git a/src/database.cpp b/src/database.cpp
index b206861..8aa6e71 100644
--- a/src/database.cpp
+++ b/src/database.cpp
@@ -35,7 +35,7 @@ bool Database::init(const QLatin1String &connectionName)
         }
         else
         {
-            qDebug() << "Could not open NGC database";
+            qWarning() << "Could not open NGC database";
         }
     }
 
@@ -71,7 +71,7 @@ bool Database::init(const QLatin1String &connectionName)
             }
             if(version > 2)
             {
-                qDebug() << "Database version is too new";
+                qWarning() << "Database version is too new";
                 return false;
             }
 
@@ -100,16 +100,16 @@ bool Database::init(const QLatin1String &connectionName)
                 m_deleteFile.prepare("DELETE FROM fits_files WHERE id=?");
                 return true;
             }
-            qDebug() << error.text();
+            qWarning() << error.text();
         }
         else
         {
-            qDebug() << "Failed to open database" << connectionName;
+            qWarning() << "Failed to open database" << connectionName;
         }
     }
     else
     {
-        qDebug() << "Database is invalid";
+        qWarning() << "Database is invalid";
     }
     return false;
 }
@@ -175,7 +175,7 @@ bool Database::checkError(QSqlQuery &query)
         return true;
     else
     {
-        qDebug() << error.text();
+        qWarning() << error.text();
         return false;
     }
 }
@@ -383,7 +383,7 @@ bool Database::indexFile(const QFileInfo &file)
             m_insertFileWcs.bindValue(7, crVal2);
             if(!m_insertFileWcs.exec())
             {
-                qDebug() << "Database error" << m_insertFileWcs.lastError();
+                qWarning() << "Database error" << m_insertFileWcs.lastError();
                 return false;
             }
             last_id = m_insertFileWcs.lastInsertId().toLongLong();
@@ -394,7 +394,7 @@ bool Database::indexFile(const QFileInfo &file)
             m_insertFile.bindValue(1, mtime);
             if(!m_insertFile.exec())
             {
-                qDebug() << "Database error" << m_insertFile.lastError();
+                qWarning() << "Database error" << m_insertFile.lastError();
                 return false;
             }
             last_id = m_insertFile.lastInsertId().toLongLong();
@@ -415,7 +415,7 @@ bool Database::indexFile(const QFileInfo &file)
         m_insertFitsHeader.bindValue(3, comments);
         if(!m_insertFitsHeader.execBatch())
         {
-            qDebug() << "Database error" << m_insertFitsHeader.lastError();
+            qWarning() << "Database error" << m_insertFitsHeader.lastError();
             return false;
         }
     }
diff --git a/src/imagewidget.cpp b/src/imagewidget.cpp
index 3bd7d03..66d992a 100644
--- a/src/imagewidget.cpp
+++ b/src/imagewidget.cpp
@@ -154,7 +154,7 @@ void ImageWidgetGL::setImage(std::shared_ptr<RawImage> image, int index)
         m_image->bind();
         f->glPixelStorei(GL_UNPACK_ALIGNMENT, 4);
         f->glGenerateMipmap(GL_TEXTURE_2D);
-        qDebug() << "setImage" << timer.elapsed();
+        qDebug() << "ImageWidgetGL::setImage" << timer.elapsed() << "ms";
         m_swPaint = f->glGetError() != GL_NO_ERROR;
     }
 
@@ -721,19 +721,19 @@ void ImageWidgetGL::initializeGL()
     logger->startLogging();
     connect(logger, &QOpenGLDebugLogger::messageLogged, [](const QOpenGLDebugMessage &message)
             {
-                qDebug() << message;
+                qDebug() << "OpenGL debug" << message;
             });
 
-    qDebug() << "Vendor:"   << (char*)f->glGetString(GL_VENDOR);
-    qDebug() << "Renderer:" << (char*)f->glGetString(GL_RENDERER);
-    qDebug() << "Version:"  << (char*)f->glGetString(GL_VERSION);
+    qDebug() << "OpenGL Vendor:"   << (char*)f->glGetString(GL_VENDOR);
+    qDebug() << "OpenGL Renderer:" << (char*)f->glGetString(GL_RENDERER);
+    qDebug() << "OpenGL Version:"  << (char*)f->glGetString(GL_VERSION);
     f->glGetIntegerv(GL_MAX_TEXTURE_SIZE, &m_maxTextureSize);
     f->glGetIntegerv(GL_MAX_ARRAY_TEXTURE_LAYERS, &m_maxArrayLayers);
     qDebug() << "Max texture size:" << m_maxTextureSize << "max layers:" << m_maxArrayLayers;
 
     //MANUAL_MIPMAP_GEN = QString((const char*)f->glGetString(GL_VENDOR)).startsWith("ATI Technologies Inc", Qt::CaseInsensitive);
 
-    qDebug() << context()->format();
+    qDebug() << "OpenGL context format" << context()->format();
 
     // each vertex is  x,y 2D position and s,t texture coordinates
     float vertexs[] = {-1.0f, -1.0f, 0.0f, 1.0f,
diff --git a/src/loadimage.cpp b/src/loadimage.cpp
index e225ea4..7bc744a 100644
--- a/src/loadimage.cpp
+++ b/src/loadimage.cpp
@@ -95,7 +95,7 @@ bool loadFITS(const QString path, ImageInfoData &info, std::shared_ptr<RawImage>
         char err[100];
         fits_get_errstatus(status, err);
         info.info.append({QObject::tr("Error"), QString(err)});
-        qDebug() << "Failed to load FITS file" << err;
+        qWarning() << "Failed to load FITS file" << err;
         return false;
     };
 
@@ -335,7 +335,7 @@ bool loadXISF(const QString &path, ImageInfoData &info, std::shared_ptr<RawImage
     catch (LibXISF::Error &err)
     {
         info.info.append(QPair<QString, QString>("Error", err.what()));
-        qDebug() << "Failed to load XISF" << err.what();
+        qWarning() << "Failed to load XISF" << err.what();
         return false;
     }
     info.info.append({QObject::tr("Error"), QObject::tr("Unsupported sample format")});
@@ -382,7 +382,7 @@ bool readXISFHeader(const QString &path, ImageInfoData &info)
     }
     catch (LibXISF::Error &err)
     {
-        qDebug() << err.what();
+        qWarning() << "LibXISF error" << err.what();
         return false;
     }
     return true;
@@ -455,17 +455,17 @@ bool loadImage(const QString &path, ImageInfoData &info, std::shared_ptr<RawImag
     if(path.endsWith(".CR2", Qt::CaseInsensitive) || path.endsWith(".CR3", Qt::CaseInsensitive) || path.endsWith(".NEF", Qt::CaseInsensitive) || path.endsWith(".DNG", Qt::CaseInsensitive))
     {
         ret = loadRAW(path, info, rawImage);
-        qDebug() << "LoadRAW" << timer.elapsed();
+        qDebug() << "LoadRAW" << timer.elapsed() << "ms";
     }
     else if(isFITS(fileInfo.suffix()))
     {
         ret = loadFITS(path, info, rawImage, planar, index);
-        qDebug() << "LoadFITS" << timer.elapsed();
+        qDebug() << "LoadFITS" << timer.elapsed() << "ms";
     }
     else if(isXISF(fileInfo.suffix()))
     {
         ret = loadXISF(path, info, rawImage, planar, index);
-        qDebug() << "LoadXISF" << timer.elapsed();
+        qDebug() << "LoadXISF" << timer.elapsed() << "ms";
     }
     else
     {
@@ -481,7 +481,7 @@ bool loadImage(const QString &path, ImageInfoData &info, std::shared_ptr<RawImag
             exif_data_free(exif);
         }
         rawImage = std::make_shared<RawImage>(img);
-        qDebug() << "LoadQImage" << timer.elapsed();
+        qDebug() << "LoadQImage" << timer.elapsed() << "ms";
         ret = !img.isNull();
     }
     return ret;
diff --git a/src/mainwindow.cpp b/src/mainwindow.cpp
index 39f95a4..2e85a6a 100644
--- a/src/mainwindow.cpp
+++ b/src/mainwindow.cpp
@@ -835,7 +835,7 @@ void MainWindow::checkNewVersion()
                 if(QMessageBox::question(this, tr("Update check"), tr("New version %1 is available. Do you want to download it now?").arg(tag)) == QMessageBox::Yes)
                 {
                     QUrl url(json.object().value("html_url").toString());
-                    qDebug() << url;
+                    qDebug() << "Opening url" << url;
                     if(url.host() == "gitea.nouspiro.space")
                         QDesktopServices::openUrl(url);
                 }