Image Resizer
Resize images online free to exact pixels or a percentage, with presets for Instagram, YouTube and Facebook. Free online image resizer — batch and ZIP.
Processed locally in your browserHow?
This tool runs in this browser tab. The files, text and values you enter are not uploaded to clkr.work servers — closing the tab clears them. Anonymous usage events (such as which button was pressed) are counted, never your content. Privacy policy
What next?
Found it useful? Share Image Resizer
Free, no sign-up, works in the browser — send it to a friend or add it to your site.
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Part of these toolkits
How to use Image Resizer
- 1Choose one or more images (or drag and drop them)
- 2Pick a preset like Instagram 1080×1080 or YouTube 1280×720, or type a width and height in pixels, or scale by percentage
- 3If the shape changes, choose crop to fill, fit with background or stretch; pick the format and quality, then click Resize and download
Frequently asked questions
How do I resize an image without distorting it?▾
Keep 'Keep aspect ratio' ticked and enter only the width (or height) — the other side is calculated automatically. For an exact size with a different shape, use 'Crop to fill' or 'Fit with background' instead of stretching.
What size should an Instagram post be?▾
1080×1080 px for square posts, 1080×1350 px for portrait and 1080×1920 px for Stories and Reels. The presets set these for you.
Does resizing reduce quality?▾
Making an image smaller keeps it sharp — the resizer downsamples in steps for smooth results. Enlarging beyond the original size cannot add detail, so the image may look soft.
Are my photos uploaded?▾
No. Images are resized in your browser with the canvas API and never leave your device.
Embed Image Resizer on your website▾
Paste this snippet into your page. The embedded tool runs in your visitor's browser and shows a small “Powered by clkr.work” link.