diff --git a/OdbDesignServer/Controllers/FileUploadController.cpp b/OdbDesignServer/Controllers/FileUploadController.cpp
index 857b2187..f8830558 100644
--- a/OdbDesignServer/Controllers/FileUploadController.cpp
+++ b/OdbDesignServer/Controllers/FileUploadController.cpp
@@ -97,6 +97,17 @@ namespace Odb::App::Server
 //
 //                    return crow::response(jsonResponse);
 //                });
+        CROW_ROUTE(m_serverApp.crow_app(), "/files/delete/all")
+                .methods(crow::HTTPMethod::Delete)
+                ([&](const crow::request &req) {
+                    // authenticate request before sending to handler
+                    auto authResp = m_serverApp.request_auth().AuthenticateRequest(req);
+                    if (authResp.code != crow::status::OK) {
+                        return authResp;
+                    }
+
+                    return handleRemoveAllDesignFiles(req);
+                });
 	}
     
     crow::response FileUploadController::handleOctetStreamUpload(const std::string& filename, const crow::request& req)
@@ -198,6 +209,31 @@ namespace Odb::App::Server
         return makeLoadedFileModelsResponse(true);
     }
 
+    crow::response FileUploadController::handleRemoveAllDesignFiles(const crow::request& req) {
+	    // get designs directory
+        const auto& designsDir = m_serverApp.args().designsDir();
+        if (designsDir.empty()) {
+            return crow::response(crow::status::INTERNAL_SERVER_ERROR, "designs directory not configured");
+        }
+
+	    // clean cache
+        m_serverApp.designs().Clear();
+
+        // delete content in designs directory (including files and folders)
+        std::error_code ec;
+        std::filesystem::remove_all(designsDir, ec);
+        if (ec) {
+            return crow::response(crow::status::INTERNAL_SERVER_ERROR, "failed to remove designs directory: " + ec.message());
+        }
+
+        std::filesystem::create_directories(designsDir, ec);
+        if (ec) {
+            return crow::response(crow::status::INTERNAL_SERVER_ERROR, "failed to recreate designs directory: " + ec.message());
+        }
+
+        return crow::response(crow::status::OK, "all design files deleted successfully");
+    }
+
     std::string FileUploadController::sanitizeFilename(const std::string& filename) const
     {
         // TODO: implement sanitize filename
diff --git a/OdbDesignServer/Controllers/FileUploadController.h b/OdbDesignServer/Controllers/FileUploadController.h
index 86afea0a..7fb723a3 100644
--- a/OdbDesignServer/Controllers/FileUploadController.h
+++ b/OdbDesignServer/Controllers/FileUploadController.h
@@ -15,6 +15,7 @@ namespace Odb::App::Server
 	private:
 		crow::response handleOctetStreamUpload(const std::string& filename, const crow::request& req);
 		crow::response handleMultipartFormUpload(const crow::request& req);
+		crow::response handleRemoveAllDesignFiles(const crow::request& req);
 
 		// TODO: actually implement sanitizeFilename()
 		std::string sanitizeFilename(const std::string& filename) const;
diff --git a/swagger/odbdesign-server-0.9-swagger.yaml b/swagger/odbdesign-server-0.9-swagger.yaml
index 5aa475cc..9e1c7426 100644
--- a/swagger/odbdesign-server-0.9-swagger.yaml
+++ b/swagger/odbdesign-server-0.9-swagger.yaml
@@ -73,6 +73,14 @@ paths:
           description: ""
       security:
         - BasicAuth: []
+  /files/delete/all:
+    delete:
+      tags: [ "file upload" ]
+      responses:
+        "200":
+          description: ""
+      security:
+        - BasicAuth: [ ]
   /filemodels:
     get:
       tags: ["filemodel"]