Create Thumbnails in Multiple Sizes

Generate responsive thumbnail sets with a single drag-and-drop.

Comma-separated sizes Enter pixel values such as 64, 128, 256. Thumbnails export together in a ZIP.

About This Spell

With a wizard's whisper, generate responsive thumbnail variants for multiple images at once—ideal for galleries and preview grids.

Privacy-first processing every time

WizardOfAZ tools do not need registrations, no accounts or sign-up required. Totally Free.

  • Local only: There are many tools like Text tools, some CSV tools, List tools etc. that are only processed on your browser. Data and Documents are transformed on your machine, so nothing is sent to our servers.
  • Transparent progress: Watch the processing banner appear as soon as work begins and know exactly when it completes.
  • Clear safeguards: Every tool links directly to our privacy policy and has been reviewed for accessibility.
  • Secure Process: Some Tools need to be processed in the servers so the Old Wizard processes your files securely on our servers, keeping them for up to 1 hour so your tool can finish its work—after that, they are automatically deleted after 1 Hour.
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What is Batch Thumbnails?

Batch Thumbnails is a free image editor from WizardOfAZ. Use it to work with images using flexible options as part of your design and publishing, without installing extra software.

Popular ways to use Batch Thumbnails

  • Streamline design and publishing by using Batch Thumbnails to work with images using flexible options.
  • Share deliverables faster—processed images are ready for download in seconds.
  • Combine Batch Thumbnails with other WizardOfAZ tools to keep complex workflows in one browser tab.

Examples and workflow tips

  • Upload a sample file, cast the spell to work with images using flexible options, and download the processed result instantly.
  • Bookmark the Batch Thumbnails in your browser so recurring tasks stay only one click away.
  • Share the spell with teammates who need a quick, no-install way to work with images using flexible options.

Frequently asked questions

Is the Batch Thumbnails secure?

Yes. The Batch Thumbnails runs entirely in your browser, which means your images never leave your device.

What can I do with the Batch Thumbnails?

You can design and publishing by processing images without uploading them to an external service.

Can I use Batch Thumbnails on mobile?

Yes. WizardOfAZ tools are responsive, so you can launch the spell on desktops, tablets, or phones without installing extra apps.

Related tools to explore

Expand your toolkit with other WizardOfAZ spells that complement Batch Thumbnails:

  • BMP Compress — Use it to compress images without losing quality.
  • BMP Crop — Use it to crop images to highlight key content.
  • BMP Resize — Use it to resize images with precise dimensions.