Image Resizer

100% Client-Side Local Processing

Change image width & height by exact pixels, percentage, or social/display presets.

Resize Settings
Output Dimensions (W × H):
W
×
H
Method:
Quality: 92%
Multi-step smooth bicubic; quality applies to JPG & WebP.
Output Format:
Quick:

Original Image

Choose Image or Drag Here
Supports JPG, PNG, and WebP (up to 25MB)
File: No image selected Size: - Dims: -
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Resized Result

Awaiting image
No Resized Image Yet
Upload an image on the left to customize dimensions, aspect ratio, or presets.
New Dims: - New Size: -
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How Image Resizing Works
  • Custom Dimensions: Enter any target width and height in pixels. Enabling Lock Aspect Ratio automatically synchronizes dimensions to avoid image distortion or stretching.
  • Percentage & Presets: Quickly scale by fractional ratios (25% to 200%) or pick standard social media resolutions like 1920×1080 (Full HD), 1080×1080 (Square), or 1080×1920 (Story).
  • Resampling Quality: High Quality uses multi-step bicubic downscaling for razor-sharp edges without moiré artifacts; Balanced uses bilinear filtering; Fast optimizes for rapid rendering.
  • Format & Alpha Transparency: PNG and WebP retain transparency; when exporting transparent graphics to JPEG, solid background flattening (defaulting to white) ensures clean rendering.
100% Privacy & Local Processing
  • All image decoding, interpolation, and canvas encoding executes locally inside your browser via HTML5 Canvas APIs.
  • Your sensitive photographs and personal graphics never leave your computer or phone and are never sent to external cloud servers.
  • Works completely offline without active internet, in incognito browsing modes, and on static web hosting.
  • Temporary canvas memory and Blob object URLs are automatically cleaned up when images are cleared or replaced.