Upload an image and set new width and/or height. Optionally lock aspect ratio and choose PNG, JPG or WebP output. Designed to process the file locally in your browser rather than uploading to ToolBoxy for resizing.
Designed to process supported images locally in your browser.
Open the Image Resizer, enter your input, and run the action. Results appear on the same page so you can copy or download without leaving the tool.
The Image Resizer processes data with client-side JavaScript where the implementation allows, so core input stays in your browser session for that step.
Get a quick, free result for everyday tasks without installing software or creating an account on a separate service.
The tool is designed to process supported images locally in your browser.
Very large sizes may be limited by browser memory.
Yes.
Double-check important outputs before using them in documents or production systems. Keep original files when working with uploads until you confirm the result.
ToolBoxy keeps the Free Image Resizer free and simple: open the page, finish the task, and move on—no account wall. Related tools on this page point you to the next step.