Unsparkle
★ Open source
Free · No sign-up · Runs on your device

Perfect sizes for
every social network.

Drop an image and choose a size in “Save as”: Instagram post or story, YouTube thumbnail, WhatsApp status and more. Set a maximum file size and download.

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Finds every logo

Scans every size and position, catches a second logo left over from an earlier edit, and cleans every frame of a video.

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Restores the real pixels

Reverses the overlay mathematically, then blends any leftovers into the background around them.

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AI upscale to 4K

Real-ESRGAN running in your browser adds real sharpness instead of blur.

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✏️

Save your changes?

You edited this image. Save the changes before going back to all images?

How to resize an image for Instagram, YouTube or WhatsApp

  1. Drop your imageDrop one image, or many at once for a batch.
  2. Choose the sizeIn “Save as” pick a preset such as Instagram portrait 1080×1350 or YouTube thumbnail 1280×720, then Fill (crop) or Fit (whole image with a soft background).
  3. Set a file size and downloadOptionally choose a maximum file size like 1 MB or 500 KB and a format, then download. A batch downloads as one ZIP.

Frequently asked questions

Which sizes are included?

Instagram post 1080×1080 and portrait 1080×1350, Story / Reel / WhatsApp status 1080×1920, YouTube thumbnail 1280×720, Facebook 1200×630, LinkedIn 1200×627, X 1600×900, Pinterest 1000×1500 and Full HD.

What is the difference between Fill and Fit?

Fill crops the image to fill the whole frame. Fit keeps the whole image and fills the empty space with a soft blurred copy.

How does the file size limit work?

Quality is lowered only as much as needed to stay under the limit, and the picture is made smaller only if that is not enough.

Is it free and private?

Yes. It is free, needs no account, and your images never leave your device.