Batch Image Resizer

Resize multiple images at once to specific dimensions. Maintain aspect ratio or set custom sizes for all your images in one go.

Drag & drop your image

or click to browse files

Supports: JPG, PNG, WebP, GIF (max 25MB)

Why this tool?

Our Batch Image Resizer is the perfect tool for preparing large sets of images for websites, social media, or presentations. Instead of resizing each image individually, you can apply the same dimensions to dozens of files at once.

Key features:

  • Smart Resizing: Maintain aspect ratio to prevent image distortion.
  • Custom Dimensions: Set exact width and height in pixels.
  • High Quality: Uses advanced canvas interpolation for sharp results.
  • Private & Secure: All processing happens in your browser.

How to use this tool?

  1. Upload images - Drag and drop multiple files or click to select.
  2. Set dimensions - Enter your target width and height in pixels.
  3. Aspect Ratio - Toggle "Maintain aspect ratio" to keep images proportional.
  4. Resize & Download - Click "Resize All" and download your processed images.

132-bit Secure & Private

Your data is secure and automatically deleted. All processing is done in your browser with 132-bit encryption. Data uploaded to our servers is automatically deleted after 1 hour of inactivity.

132-bit data secured with encryption*

We use AES-GCM 128-bit encryption combined with HMAC and cryptographic salt, providing effective ~132-bit entropy for any data. This military-grade encryption ensures your image data remains completely private and secure. All data is automatically deleted from our servers after 1 hour of inactivity.

* Technical note: 128-bit AES-GCM + 32-bit HMAC/salt = ~132-bit effective security entropy

  • ✓Automatic data deletion after 1 hour
  • ✓132-bit AES-GCM encryption for all data
  • ✓No tracking or analytics cookies
  • ✓Web Crypto API for secure encryption
  • ✓Open-source and auditable code

Common use cases

  • →Resizing a batch of product photos for an online store
  • →Preparing multiple images for a blog post or gallery
  • →Scaling down high-resolution photos for email attachments
  • →Standardizing image sizes for a social media campaign

FAQ & troubleshooting

What happens if I don't maintain the aspect ratio?

If you uncheck "Maintain aspect ratio", the images will be stretched or squashed to fit the exact dimensions you provided.

Is there a limit to the number of files?

While there is no strict limit, processing many large images simultaneously depends on your computer's available memory.