Image Resizer & Compressor
Resize and compress JPG, PNG and WebP images right in your browser — by exact pixel dimensions, by percentage, or down to a target file size. Your images are never uploaded, so your privacy is always protected.
What does the Image Resizer do?
Aaroka's free image resizer changes the dimensions and file size of an image without any software installation. You can scale an image to an exact width and height in pixels, resize it proportionally by percentage, or let the tool compress it toward a target file size such as 100 KB or 200 KB.
Unlike typical online converters, every operation happens locally on your device using the HTML5 Canvas API. Nothing is sent to a server, so even confidential images stay on your computer.
How to resize an image
- 1Upload an image. Drag & drop a JPG, PNG or WebP file, or click the upload area to browse your device.
- 2Choose your size. Enter pixel dimensions, pick a percentage, or keep the aspect ratio locked.
- 3(Optional) Set quality or target size. Adjust compression quality or choose a maximum file size.
- 4Process and download. Click "Process Image", preview the result, and download your optimized image.
Key features
- ✅ Resize by exact pixels or percentage
- ✅ Maintain aspect ratio automatically
- ✅ Compress to a target file size
- ✅ Supports JPG, PNG and WebP
- ✅ Before/after preview with size savings
- ✅ 100% browser-based — no uploads
Frequently asked questions
Is this image resizer really free?
Yes. Aaroka's image resizer is completely free with no watermarks, sign-ups, or limits.
Are my images uploaded to a server?
No. Resizing and compression happen entirely in your browser, so your images never leave your device.
Which formats are supported?
JPG (JPEG), PNG and WebP. The processed image is exported as JPG or PNG.
Can I reduce an image to under 100 KB?
Yes. Choose "Under 100 KB" (or another target) in the target size dropdown and the tool will lower the quality until the file fits.
Does resizing reduce image quality?
Resizing is lossless in dimension but compression can reduce detail. Use higher quality settings when detail matters.