Image Resizer - Resize Dimensions & Reduce Image File Size (KB/MB) Free
Resize image dimensions by pixels or percentage, and reduce file size (KB or MB) with instant client-side WebP, JPEG, and PNG compression. Features max file size targets (50 KB, 100 KB, 200 KB, 500 KB, 1 MB) for passport, portal, and email uploads.
How to use Free Image Resizer & File Size Reducer Online
- Step 1: Upload your photo or document image (PNG, JPG, WebP) or paste directly from clipboard.
- Step 2: Choose your resize method: enter custom width/height in pixels with aspect ratio lock, adjust percentage scale factor, or choose standard resolution presets.
- Step 3: Optionally set a target maximum file size (such as 50 KB, 100 KB, 200 KB) or adjust the WebP/JPEG quality slider for file size reduction.
- Step 4: Download your resized and compressed image instantly or copy directly to your clipboard.
Frequently Asked Questions
How does the target file size reduction (50 KB, 100 KB, 200 KB) work?
Our smart binary search algorithm iteratively optimizes compression quality and scale factors inside your browser to ensure the exported image stays strictly below your chosen target KB limit.
Will my image lose quality when resizing or compressing?
Converting images to modern WebP format or adjusting pixel dimensions down to standard web resolutions (e.g. 1920x1080) dramatically reduces file size while maintaining crystal-clear visual quality.
Are my uploaded photos kept private?
Yes, 100%! All image processing, canvas scaling, and WebP compression run locally within your browser memory. No photos are ever uploaded to an external server.