Image Resizer
Resize images to exact pixel dimensions or by percentage.
Resize any image to a specific width and height (with optional aspect-ratio lock) or by percentage. Choose the output format and download. Everything runs in your browser.
Common use cases
- Resize photos to social-media specifications (Instagram square 1080×1080)
- Generate thumbnail variants of large images for blog posts
- Scale UI assets to match required pixel sizes (e.g., 512×512 app icons)
- Halve image dimensions to drop file size for faster web pages
Frequently asked questions
Will resizing reduce quality?▾
Downscaling rarely shows visible loss. Upscaling (making images larger) always loses quality because new pixel detail can't be invented from nothing.
Can I keep the aspect ratio?▾
Yes — toggle 'lock aspect ratio' and the height auto-updates as you change the width (and vice versa).
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