Phone downloads can land in different places depending on the browser and device. Start by confirming the image is correct, then check where the browser actually saved it.
Retrieve the image
Paste an individual YouTube video link into ToolNivo's thumbnail tool. Choose a resolution and inspect the preview. If the automatic Download image action does not complete, open the image in a new tab and use the browser's image-saving option.
Find the saved file
Look in the browser's downloads list or the device's file manager. A downloaded image may not immediately appear in your gallery's main feed. Open it from the download record before assuming the save failed and creating several duplicates.
Prepare it for your project
Rename the copy with a recognizable subject and video identifier where your device allows it. Keep the source URL in your project notes. If you are moving the file into a design app, import the actual downloaded image rather than a screenshot of the preview, which can include interface elements and reduced detail.