// ignore: avoid_web_libraries_in_flutter import 'dart:html'; import 'dart:typed_data'; void saveFileWeb( Uint8List data, String mimeType, String filenameWithoutExtension) { final blob = Blob([data], mimeType); final url = Url.createObjectUrlFromBlob(blob); final a = document.createElement("a") as AnchorElement; a.href = url; var ext = ""; switch (mimeType) { case "image/jpeg": ext = ".jpg"; break; case "image/png": ext = ".png"; break; case "image/gif": ext = ".gif"; break; default: break; } a.download = "$filenameWithoutExtension$ext"; a.click(); Url.revokeObjectUrl(url); } void saveUriWeb(String uri) { final a = document.createElement("a") as AnchorElement; a.href = uri; a.click(); }