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How It Works

1

Load Your Image and Enter Target Dimensions

Upload any image file and type the exact width and height in pixels that you need for your target platform or layout. The lock-aspect-ratio toggle is enabled by default, so changing one dimension automatically calculates the other to prevent stretching or squashing your image into an unnatural proportion.

2

Choose Scaling Algorithm and Output Format

The resizer uses high-quality Lanczos resampling when scaling down, which preserves edge detail far better than basic bilinear interpolation. You can also override the output format — for example, resizing a PNG screenshot and exporting it as a JPEG to save additional bandwidth.

3

Download the Resized Image

Preview the result at actual pixel size to confirm it meets your requirements, then download the file. The resized image retains full color depth and sharpness at the new dimensions, ready to upload to your CMS, social platform, or design tool.

Who Uses This

Social Media Managers

resizing a single campaign photo into the exact pixel dimensions required by Instagram, Facebook, LinkedIn, and Twitter without opening Photoshop or relying on each platform's lossy auto-resizer

Frontend Developers

generating multiple resolution variants of a hero image for responsive srcset attributes so that mobile users download appropriately sized files instead of full-resolution desktop images

Podcast Cover Art Designers

scaling album artwork to Apple Podcasts' 3000 × 3000 pixel maximum and Spotify's minimum requirements from a single high-resolution master file

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Frequently Asked Questions

What happens if I unlock the aspect ratio?
Unlocking the aspect ratio lets you set width and height independently, which will stretch or compress the image to fit the new proportions. This is useful for creating intentionally distorted effects but generally should be avoided for photographs and product images where accurate proportions matter.
Can I resize an image to be larger than the original?
Yes, but enlarging beyond the original resolution produces pixelation because you are asking the algorithm to invent detail that does not exist in the source. For meaningful upscaling, use the Image Upscaler tool instead, which uses edge-aware interpolation to add plausible detail.
Does resizing reduce file size automatically?
Making an image smaller in pixel dimensions almost always reduces the file size because there are fewer pixels to encode. However, switching from JPEG to PNG format at the same dimensions can increase file size, so choose your output format carefully.