ToolPix

Image Resizer

Resize images to any dimension. All processing happens in your browser.

Drop your image here, or click to browse

Supports JPEG, PNG, WebP, GIF

How to Resize Images

  1. 1

    Upload Your Image

    Select or drag and drop any JPEG, PNG, or WebP image file.

  2. 2

    Set Dimensions

    Enter your desired width and height. Toggle 'Maintain Aspect Ratio' to prevent distortion.

  3. 3

    Choose Output Format

    Keep the original format or convert to JPEG, PNG, or WebP while resizing.

  4. 4

    Download

    Preview the resized result and download it instantly.

About Image Resizing

Image resizing changes the pixel dimensions of an image. Whether you need to scale down a 4000×3000 photo for a blog post or upscale an icon, this tool handles it all in your browser.

Maintaining the aspect ratio is important to avoid stretching or squishing your image. When you lock the ratio, changing one dimension automatically calculates the other. This ensures your photos look natural at any size.

Common resize targets include 1920×1080 for Full HD displays, 1200×630 for social media Open Graph images, 800×600 for blog posts, and 150×150 for profile thumbnails.

Key Features

Resize to any custom width and height
Lock aspect ratio to prevent distortion
Supports JPEG, PNG, and WebP formats
Instant preview before downloading
No quality loss during proportional scaling
Works with images of any size

Common Use Cases

  • Resize photos to fit blog post layouts or CMS requirements
  • Create social media images at platform-specific dimensions (1200×630 OG, 1080×1080 Instagram)
  • Generate thumbnail images for galleries and product listings
  • Reduce image dimensions to meet upload requirements for forms and applications
  • Prepare images for print at specific DPI and pixel dimensions

Frequently Asked Questions

Does resizing reduce image quality?

Downscaling (making smaller) preserves quality well. Upscaling (making larger) can cause blurriness because new pixels must be interpolated. For best results, start with the largest version of your image.

What is aspect ratio and why does it matter?

Aspect ratio is the proportional relationship between width and height (e.g., 16:9, 4:3). Maintaining it prevents your image from looking stretched or squished when resized.

What are common image sizes for social media?

Facebook/LinkedIn OG: 1200×630, Instagram post: 1080×1080, Twitter post: 1200×675, Pinterest pin: 1000×1500, YouTube thumbnail: 1280×720.

Can I resize images without losing quality?

When downsizing, quality loss is minimal. The tool uses browser-native Canvas resampling which produces sharp results. For lossless output, choose PNG format.

Is there a maximum image size I can resize?

There is no server-imposed limit. The maximum depends on your device's memory and browser capabilities. Most modern devices handle images up to 8000×8000 pixels.

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