Resize Images Online

Resize images to exact pixel dimensions, percentages or social media presets like Instagram, Facebook and X. Browser-based image resizer that keeps quality and aspect ratio – no signup and no uploads to our servers.


Supported formats: JPG, PNG, GIF, BMP, WEBP

How to Use the Image Resizer

  1. Click "Select Image" or drag and drop your image
  2. Choose your resize method: Custom Size, Percentage, or Social Media preset
  3. For custom size: Enter dimensions and toggle aspect ratio lock as needed
  4. For percentage: Select a preset or enter a custom percentage
  5. For social media: Choose your platform and desired format
  6. Preview the resized image
  7. Download your resized image in high quality

Resize Methods

Custom Dimensions

Set exact width and height in pixels. Lock aspect ratio to maintain proportions or unlock for free-form resizing.

Percentage Scaling

Scale images by percentage. Quick presets from 25% to 200%, or enter any custom percentage up to 500%.

Social Media Presets

One-click resize to perfect dimensions for Instagram, Facebook, Twitter, YouTube, and LinkedIn posts.

Key Features

Precise Resizing

Resize by exact dimensions with aspect ratio lock control.

Real-time Preview

See your resized image before downloading.

High Quality

Advanced scaling algorithm maintains image quality.

Multiple Formats

Support for JPG, PNG, GIF, BMP, and WEBP formats.

Popular Social Media Image Sizes

  • Instagram: Square (1080×1080), Portrait (1080×1350), Story (1080×1920)
  • Facebook: Shared Image (1200×630), Cover (820×312), Story (1080×1920)
  • Twitter/X: Post (1200×675), Header (1500×500)
  • YouTube: Thumbnail (1280×720), Channel Art (2560×1440)
  • LinkedIn: Shared Image (1200×627), Cover (1584×396)

Frequently Asked Questions

Our tool uses advanced scaling algorithms to maintain image quality. When downsizing, quality is preserved automatically. For upsizing (enlarging), some pixelation may occur but we minimize it with bicubic interpolation.

Currently, you can resize one image at a time. However, the process is very fast since everything runs locally in your browser—just upload, resize, download, and repeat for the next image.

Percentage scaling resizes proportionally (e.g., 50% makes the image half the size). Custom size lets you set exact pixel dimensions like 800×600. Use percentage for simple scaling, custom size for specific requirements.

Yes! When the aspect ratio is locked (default), changing width automatically adjusts height to maintain proportions. Click "Lock Ratio" to toggle this on/off for free-form resizing.

No, never. All resizing happens locally in your browser using canvas technology. Your images stay on your device and are never transmitted to any server, ensuring complete privacy.