Image Size Reducer

The Image Size Reducer is a fast, browser-based tool that lets you shrink both the dimensions (width and height in pixels) and the file size of any image without complicated software. Oversized photos slow down web pages, eat up storage and are often rejected by upload forms with strict size limits — resizing them to the exact pixels you need solves all three problems at once. Because the work is done locally with HTML canvas, there is nothing to install and nothing is uploaded to a server.

With the aspect-ratio lock enabled, the tool automatically recalculates the matching dimension as you type, so your images stay sharp and never look squashed or stretched. Enable "Reduce quality" to compress the output further and produce a lightweight JPEG that is ideal for websites, email attachments, blog posts, marketplace listings and social-media uploads. It is the simple, private way to make heavy images small and web-ready in seconds.