Design
Image Resizer
Scale and format images to exact resolutions locally in your browser. Complete platform preset catalog.
Drag & drop an image or click to browse
Supports PNG, JPEG, WebP, GIF, BMP & TIFF • up to 50 MB
PNG JPEG WebP GIF
All image scaling operations run locally inside your browser. No files are sent to remote servers, maintaining complete client-side confidentiality.
How to Use the Image Resizer
- Upload — Drag and drop your image file or click to browse.
- Scale or Input Custom Dimensions — Drag the scaling slider to shrink or grow by percentage, or input exact pixel targets. Lock aspect ratio to prevent distortion.
- Select a Platform Preset — Use tabs (Social Media, eCommerce) to choose exact target aspect dimensions instantly (e.g. Instagram Square, YouTube Thumbnail).
- Select Output & Download — Pick PNG, JPEG, or WebP. Adjust quality settings for lossy formats and save the resized asset.
Frequently Asked Questions
Can I resize multiple images simultaneously?
Currently this tool focuses on processing single files with visual inspection. To resize
another image, click the "New Image" button to upload a fresh source file.
Does upscaling ruin quality?
Yes, upscaling beyond 100% of the original size requires the browser to generate new
pixels via interpolation. This usually results in a softer or pixelated output. The
Scale Factor Meter will turn orange or red as a warning when upscaling heavily.