YouTube error · Occasional

YouTube thumbnail blurry / pixelated — fix the low-res display

A YouTube thumbnail is showing up blurry / pixelated in your search results or homepage. The high-resolution version exists but YouTube is serving the smaller variant for some reason.

Why this happens

  • YouTube's adaptive image serving picked a smaller variant for your viewport.
  • Browser cache holds an old low-res version.
  • Slow connection triggered low-res fallback.
  • Older video that only has hqdefault (480×360) max — no maxres exists.
  • The display is high-DPI but the layout doesn't request a higher-DPI variant.

How to fix it

  1. 1

    Hard reload

    Cmd+Shift+R. Re-requests images, may pick a higher-resolution variant for your current viewport.

  2. 2

    Open the video — check the watch page

    On the watch page, the thumbnail in search/results vs the actual high-res file may differ. Use our [/youtube-thumbnail-downloader](/youtube-thumbnail-downloader) to fetch the maxres version directly.

  3. 3

    Confirm the video has maxres

    Older videos may only have hqdefault (480×360). No matter what you do, that's the maximum stored size. Our thumbnail downloader shows you which sizes exist.

If you just want the video saved

For a guaranteed maxres thumbnail (when one exists), use the [/youtube-thumbnail-downloader](/youtube-thumbnail-downloader) tool. It shows the full size table and lets you save the actual largest available.

Try VidPickr

Frequently asked

What's the maximum YouTube thumbnail size?
1280×720 (maxresdefault.jpg). Only present when the uploader provided a custom HD thumbnail. Auto-generated thumbnails top out at hqdefault (480×360).

Related YouTube errors