What image formats are supported?

JPG, PNG, WebP and GIF are accepted as input. Output can be saved as PNG, JPG or WebP. For images with transparency, choose PNG output.

Does resizing reduce image quality?

Downscaling generally preserves visual quality. Upscaling beyond the original resolution will look soft or pixelated. Always start from the highest resolution original you have.

Can I resize multiple images at once?

This tool handles one image at a time. For batch resizing, use desktop tools like GIMP, Photoshop or ImageMagick.

What is the best resolution for web images?

Hero images: 1920×1080 px. Blog thumbnails: 1200×630 px. Product photos: 800×800 px. Always compress after resizing using our Image Compressor.

📐

Image Resizer

Resize images to exact dimensions or by percentage in your browser. Free, private, no uploads.

🖼️ Image Tools Free Browser-based

Tool

Drop an image here or browse files

Resize to exact pixels or by percentage — runs entirely in your browser

JPEG PNG WebP GIF

How to Resize an Image

Drop your image into the upload area or click to browse. Choose Pixels to enter exact width and height, or Percentage to scale proportionally. With Lock aspect ratio enabled, changing one dimension automatically updates the other. Select an output format, then click Resize Image and download.

Best Image Sizes for Web

Use Case	Recommended Size	Format
Full-width hero banner	1920 × 1080 px	JPG / WebP
Blog post featured image	1200 × 630 px	JPG / WebP
Product photo	800 × 800 px	JPG / WebP
Profile / avatar	400 × 400 px	JPG / PNG
Logo (transparent)	400 × 200 px	PNG

Social Media Dimensions

Platform	Cover / Banner	Post
Facebook	820 × 312 px	1200 × 630 px
Twitter / X	1500 × 500 px	1200 × 675 px
Instagram	—	1080 × 1080 px
LinkedIn	1584 × 396 px	1200 × 627 px
YouTube	2560 × 1440 px	1280 × 720 px (thumbnail)

📖 How to Resize an Image Without Losing Quality

Image Resizer

How to Resize an Image

Best Image Sizes for Web

Social Media Dimensions

Frequently Asked Questions