Free Online Image Resize Tool

Free online Image Resize: High-quality lossless resizing. No software installation, works right in your browser, completely free.

How Image Resize Works

Image Resize scales images by percentage or exact pixel dimensions using a high-quality resampling algorithm. Prepare photos for upload forms, resize avatars to platform specs, or downscale huge images so they load fast — without installing any desktop software.

Resize by percentage or exact pixels with lockable aspect ratio
High-quality resampling keeps edges clean at every scale
Presets cover avatars, web, HD and 4K targets
  1. Upload the image you want to resize.
  2. Choose “By Percent” or “By Pixels” and enter the target size — the aspect ratio can be locked or unlocked.
  3. Pick the output format: PNG (lossless), JPEG (small) or WebP (recommended).
  4. Click “Start” and download the resized image.

Typical Use Cases

Prepare profile pictures

Resize a photo to 200×200 for avatars or 400×400 for forum profiles in one step.

Fit upload forms

Downscale a 12MP photo to a few hundred pixels to satisfy website upload constraints.

Downsize before sharing

Shrink large camera images to shareable web sizes without losing on-screen quality.

Use the presets for common targets — Avatar 200, Small 400, Medium 800, HD 1920 or 4K 3840. For social media avatars and cover photos, checking the platform’s exact spec avoids surprise cropping later.

FAQ

Can I upscale a small image without blur?

Standard resizing can enlarge images, but quality depends on the source. For dramatic enlargements with detail recovery, try the AI Upscale tool instead.

Will the resized image keep the same file format?

You choose the output format yourself — PNG, JPEG or WebP — independent of the original format.

Is Image Resize free?

Completely free. All tools on this site are free to use — no sign-up and no usage limits. Ads shown on the site help cover server and development costs.

Are my files safe?

Yes. Files are processed entirely in your browser and never uploaded to any server. Data is cleared when you close the page.

Is batch processing supported?

Yes. Add up to 30 files at once and download the results as a ZIP when done.

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