1280 × 720 pixels, 16:9, under 2 MB. Drop your thumbnail to check it and export it at the right size. Free, no login.
1280 × 720 pixels at a 16:9 ratio, with a minimum width of 640 pixels. The file must be under 2 MB, as a JPG, PNG or GIF.
YouTube fits it into a 16:9 frame, which adds black bars or crops it. Use the checker to crop your image to 16:9 yourself and choose which part stays.
The video's duration badge sits over the bottom-right corner in search, home and suggested videos. Keep faces, text and the key object out of that corner — the checker marks it.
No. The thumbnail is checked and resized in your browser. Nothing is sent to Hookova.
Export it from the checker: it saves a 1280 × 720 JPG and lowers the quality step by step until the file is under 2 MB.
YouTube Title CheckerLive title score, mobile truncation preview, and the click signals your title is missing.
YouTube Banner SizeThe 2560×1440 banner spec with the safe area drawn on — check your banner or download the blank template.
Video Frame ExtractorUpload a clip or paste a TikTok, YouTube or Reels link and download frames as PNG or ZIP.
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