Local browser processing

Resize an image for YouTube thumbnail

Create an exact 3840x2160px image using YouTube's current recommended custom-thumbnail resolution and 16:9 aspect ratio. Choose crop to fill, fit with padding, or stretch; the source and export stay in this browser tab.

How it works

01

Choose an image

Open a JPG, PNG, or WebP file from your device.

02

Fit the YouTube thumbnail canvas

Crop to fill without distortion, fit the full image with padding, or stretch it to exactly 3840x2160px.

03

Verify and download

Confirm the 3840x2160px output, choose JPG, PNG, or WEBP, and save the locally created file.

What stays private here

  • The source image is decoded in this browser tab.
  • Canvas creates the output file on this device.
  • No source image or output image is sent to Peelaway.
  • Nothing from this utility is added to your Peelaway account.

Questions about this tool

What size does this YouTube thumbnail preset create?

It creates an image that is exactly 3840 pixels wide and 2160 pixels tall. YouTube's current recommended custom-thumbnail resolution and 16:9 aspect ratio. Platform guidance can change, so recheck it before a high-stakes campaign.

Will the result be exactly 3840x2160 pixels?

Yes. Every fitting mode creates a 3840x2160px canvas, and the result card shows the measured dimensions before download.

What is the difference between crop, fit, and stretch?

Crop fills the canvas without distortion and trims the long edges. Fit keeps the full image and adds padding. Stretch fills the canvas but can distort proportions.

Is the image uploaded for resizing?

No. The browser decodes, resizes, previews, and exports the image locally. The source and output images are not sent to Peelaway.

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Need to change what is in the image?

Test Peelaway's production workflow for supported object removal, background removal, and prompt-driven image changes.

Open the image editor