Resize Image Online Free
Change an image to any width and height in seconds. Use a ready-made preset for Instagram, YouTube, Facebook or X, or type your own exact size — the file never leaves your browser.
JPG, PNG, WebP and other common image formats. Processed locally, never uploaded.
Upload an image to see its dimensions here.
Resized preview
How to use
- Upload your image by clicking the drop area or dragging a file onto it.
- Pick a preset size or type your own width and height — with “Keep aspect ratio” on, the other side updates itself.
- Click Resize image, check the preview, then download the resized file.
Frequently asked questions
Is my image uploaded anywhere?
No. Resizing is done with the canvas API in your own browser, so the image never leaves your device.
What does “Keep aspect ratio” do?
It locks the image's original proportions. When you change the width, the height is recalculated automatically (and the other way round), so nothing looks stretched or squashed. Turn it off to stretch the image to an exact size.
Will enlarging a small image make it sharper?
No — resizing cannot add detail that was never there. Enlarging a small image makes it bigger but softer. For the best result, start from the largest original you have and only shrink it.
Which output format should I pick?
Keep the original format unless you have a reason to change. JPEG is smallest for photos, PNG keeps sharp edges and transparency, and WebP is usually the smallest overall and works in all modern browsers. Use it as a free resize image online — no signup, nothing to install.
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