How do I resize an image (to specific pixels)?
Image resizer online - rescale a photo to any dimensions without sending it anywhere. Drop a file, pick a mode (pixels or percent), enter target values, download.
Aspect-ratio lock keeps the original shape - changing width auto-updates height.
Everything runs in your browser via Canvas API with `imageSmoothingQuality: high`.
Useful when a CMS demands max 1920px, when an avatar must be 200×200, or when you want to halve phone-camera photos before cloud-uploading.
How to use it
- Drag an image onto the dropzone or click "Choose file". PNG, JPG, WebP, AVIF, BMP, GIF supported.
- Pick a mode: "Pixels" (exact dimensions) or "Percent" (slider).
- In Pixels mode keep aspect-ratio lock on if the photo should stay proportional. Setting width auto-fills height.
- The preview updates instantly. Click "Download" - file saved with new dimensions in filename.
When this is useful
When resizing pays off - typical situations:
- Website - WordPress demands max 1920px wide; phone photos are 4032px. Rescaling saves 70% before any compression.
- Avatars and icons - 200×200 for LinkedIn, 1600×900 for covers, 512×512 for Twitter.
- CVs and documents - 2 MB limit in some recruiting systems - resize + compress fixes it.
- Print - print shops talk in mm and DPI - knowing the physical target it's easy to compute pixels (mm × DPI / 25.4).
- E-commerce (Amazon, eBay, Etsy) - standard 800×800 product thumbnails.
- Photo galleries - curators often cap the shorter side (e.g. 2000px).
After resizing it's worth running the file through the image compressor and stripping EXIF in the EXIF remover before publishing.
Questions and answers
Downscaling is effectively lossless visually - you can't recover detail you discarded, but that's not a problem for display. Upscaling always blurs - Canvas uses linear interpolation. For upscales use AI tools (Real-ESRGAN, Topaz Gigapixel).