Resize images to exact dimensions or a percentage scale. 100% free, no sign-up — your file never leaves this browser tab.
Image Resizer lets you resize an image entirely inside your browser, with no software to install and no account to create. Like every tool on Techsinghge Smart Tools, it's built around cleaning up and shrinking a file so it's faster to send, store, and open, and it works the same way whether you're on a laptop, a Chromebook, or a phone.
Under the hood, Image Resizer takes one or more images and hands back images resized to exact dimensions or a percentage scale. Your file is loaded directly into this page's memory using JavaScript — nothing is transmitted to a server, which means there's no upload wait, no file-size cap tied to a paid plan, and no copy of your document left sitting on someone else's storage once you're done.
Resizing a photo to meet a website's upload dimension requirement is one of the most common reasons people reach for this tool, but it works just as well for scaling down a large camera photo before sharing it. If you need a related step before or after this one, check the related tools further down the page — every tool on this site is designed to slot into the same drag-and-drop workflow.
No installs, no accounts — just your browser doing the work.
Scroll up (or tap “Use Image Resizer now”) to load the tool instantly — no account or install needed.
Drag and drop one or more images into the drop zone below, or click it to browse your device.
Adjust whatever settings this tool offers so the result comes out exactly how you want it — sensible defaults are already selected.
Click Run, then download images resized to exact dimensions or a percentage scale straight to your device — it's generated locally and ready in seconds.
Resize to specific width and height, or scale proportionally by percentage.
Lock the aspect ratio to avoid accidentally stretching or squashing an image.
Your one or more images stays on this device the whole time — nothing is uploaded, logged, or stored on a server.
Processing happens right in this browser tab, so there's no upload progress bar, no server queue, and no processing fee.
Because Image Resizer runs locally, teams handling sensitive paperwork — legal, HR, healthcare admin, finance — can use it without the compliance questions that come with uploading documents to a third-party server. And if you only need it for a single one-off task, it's just as useful with zero setup and nothing to remember to delete afterwards.
Scaling down generally preserves visual quality well; scaling up beyond the original resolution can look softer.
Yes, apply one set of dimensions across a batch of images in a single pass.
Yes — completely free, with no hidden page limits, no sign-up, and no watermark added to images resized to exact dimensions or a percentage scale.
No. Image Resizer runs entirely in your browser using JavaScript libraries like pdf-lib and pdf.js. Your one or more images never leaves this device.
Yes, Image Resizer works in any modern mobile or desktop browser — there's no app to install and no separate mobile version to download.