Resize Image
Change the pixel dimensions of an image while preserving proportions when needed.
or click to choose a file
When this tool is useful
Change the pixel dimensions of an image while preserving proportions when needed. The right choice depends on what is actually wrong with the image. If the dimensions are correct but the file is too heavy, start with compression. If the image is physically larger than the destination needs, resizing can remove unnecessary pixels. If another system requires a different file type, conversion is the appropriate step.
How it works
The core operation runs in your browser using the selected file and the browser's image and Canvas capabilities. The generated result is offered as a local download. This design is intended to avoid a server-side image upload for the core operation.
Common questions
Does resizing reduce file size?
Usually, yes, because fewer pixels can require less data. The exact result depends on the output format and compression settings.
What does keep aspect ratio mean?
It keeps the width-to-height relationship unchanged. This prevents people, objects and logos from appearing stretched or squashed.
What size should I resize an image to?
Use the dimensions required by the destination. If there is no requirement, choose a size appropriate for the display area rather than keeping an unnecessarily large original.