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YouTube Thumbnail Preview

See your thumbnail inside a video-site style result card.Social Media Tools

YouTube Thumbnail Preview

Drop a 1280×720 image to see it inside a YouTube-style result card, exactly as viewers will see it.

Best at 1280×720 (16:9), under 2 MB — use the Social Media Image Resizer first if needed.

About this tool

A 1280×720 image next to your video title, rendered as a result card — the fastest way to judge whether a thumbnail reads at small size.

How to use the YouTube Thumbnail Preview tool

  1. Drop the thumbnail. JPG, PNG or WebP; 1280×720 works best.
  2. Edit the title. Whatever the video will be called.
  3. Judge it. If the image reads at card size, it works.

Supported formats

Input

  • Plain text or file input

Output

  • Converted or analysed output

Inputs are validated before anything is processed. Invalid values and unsupported files are rejected with a clear error instead of failing silently.

Frequently asked questions

What size should thumbnails be?

1280×720, under 2 MB — the Social Image Resizer has the preset.

Is this the real site UI?

It is a faithful local mock-up, not an embed of the platform.

Is my image uploaded?

No; the preview uses a local object URL.

Privacy

Everything you enter stays in this browser tab. There is no upload endpoint for tool inputs, no account, and no server-side copy of your text or files. Results are produced locally and disappear when you close the page.

No account is required and no file is ever uploaded. See the privacy policy for details about analytics and the limited data this site stores.

Known limitations

  • Dark-mode card styling is not simulated.

Related tools

Other free tools from the same collection.

Social Media Image ResizerCrop and scale images to platform-standard sizes.Hashtag FormatterTurn words into clean, CamelCase hashtags.Social Caption FormatterTidy captions: trim lines, collapse blanks, keep emoji.Social Character CounterCheck a post against every platform limit at once.