Image Resizer

Resize images by pixels, percentage, or social media presets — no uploads

🔒 Files never leave your browser
JPG PNG WebP

🖼

Drop image here or click to browse

Supports JPEG, PNG, WebP

How to Use Image Resizer

Upload your image

Drag and drop or click to select a JPEG, PNG, or WebP image.

Choose target size

Enter exact pixel dimensions, scale by percentage, fit within max bounds, or pick a social media preset.

Download

Preview the result with the before/after slider and download your resized image.

Why Choose AllTools Image Resizer?

  • ✓ 100% free, no account needed
  • ✓ Files never leave your browser
  • ✓ Resize by exact pixels, percentage, or max dimension
  • ✓ Lock/unlock aspect ratio
  • ✓ Social media presets (Instagram, Facebook, Twitter, YouTube, LinkedIn)
  • ✓ Output format selection (JPEG, PNG, WebP)
  • ✓ Quality control for JPEG/WebP output
  • ✓ Before/after preview slider
  • ✓ Original image info (dimensions, size, ratio)
  • ✓ Drag and drop interface

Frequently Asked Questions

Is this image resizer really free? ▼
Yes, completely free. No account, no subscription, no hidden fees. AllTools is supported by ads.
Do my images get uploaded to a server? ▼
No. Everything runs directly in your browser using the Canvas API. Your files never leave your device.
What image formats are supported? ▼
JPEG, PNG, and WebP formats are supported for both input and output.
Can I resize to social media dimensions? ▼
Yes. Built-in presets for Instagram Post/Story, Facebook Cover, Twitter Header, YouTube Thumbnail, LinkedIn Banner, and more.
Does resizing affect image quality? ▼
Enlarging images can reduce quality. Shrinking preserves quality well. Use the quality slider to control output compression.
What does "Lock Aspect Ratio" do? ▼
When locked, changing width automatically adjusts height proportionally (and vice versa) to prevent image distortion.
Is there a file size limit? ▼
No strict limits. Files up to 50MB work smoothly on most computers.
Is EXIF metadata preserved? ▼
No. The Canvas API used for resizing automatically strips EXIF metadata including GPS location data.
Does this work on mobile? ▼
Yes, all AllTools tools are mobile-optimized and work on iOS and Android browsers.

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