Saving Thumbnails on Android
On Android, copy the video link from the YouTube app (Share → Copy link), paste it into this page in Chrome or any browser, and tap the download button under the size you want. The JPG saves straight to your Downloads or gallery, depending on your browser settings. No app is required, and the tool never asks for storage or account permissions beyond the normal browser download.
Saving Thumbnails on iPhone
On iPhone, iOS browsers handle downloads a little differently. After you paste the link and the thumbnail appears, long-press (tap and hold) the image and choose 'Add to Photos' or 'Save to Photos' — or use the download button and then save from the Files app. Safari and Chrome on iOS both work. Because everything runs in the browser, there is nothing to install from the App Store.
Why a Browser Tool Beats an App
Most 'YouTube thumbnail downloader' apps in the stores show ads, request broad permissions, and do exactly what a web page can do for free. A browser-based tool needs no install, no updates, and no permissions — you paste a link and save an image. It also works the same on Android, iPhone, tablets, and desktop, so you do not need a separate app per device.
