What does this tool do?
Image Resizer: image file, width, height, lock aspect ratio → resized image, preview, original dimensions, output dimensions, output size. Process locally in your browser. Inputs: Image file, Width, Height, Lock aspect ratio. Outputs: Resized image, Preview, Original dimensions, Output dimensions, Output size.
How to use it?
Provide the listed input and choose Resize. Review the result, then copy or download where available. Clear removes inputs and results.
Browser-local processing. No uploads, content logging, persistence or remote resource loading. Generated markup is inert text; files are treated as untrusted data.
Local native decoding/encoding; re-encoding removes metadata and flattens animation. PNG, JPEG and WebP bytes are verified. AVIF decoding depends on this browser; no AVIF encoding is exposed.
Dimensions initialize from the source. Upscaling occurs only if you explicitly enter larger dimensions. Output is PNG.