Resize Image (High Quality)

Upload your image, set the new width/height in pixels, keep Lock aspect ratio enabled to avoid distortion, then resize using high-quality scaling. Download in PNG (best quality), WEBP (high quality + smaller), or JPG (smallest for photos).

Turn on Lock aspect ratio. Then changing width automatically updates height (and vice-versa). If you unlock it, the image can stretch.

Exact KB size depends on dimensions + compression. To hit targets like 20KB or 100KB, use WEBP/JPG, lower quality gradually (for example 0.92 → 0.85 → 0.75), and reduce pixels only if needed.

PNG preserves the most detail (bigger files). WEBP usually keeps high quality with smaller size. JPG is best for smaller photo files but is lossy.

Yes — the workflow is the same: choose pixel size, keep aspect ratio, and export with the format/quality you need. This tool does it directly in your browser without sending files to a server.

Resizing changes pixel dimensions. Quality loss mostly comes from heavy downscaling or exporting with low JPG/WEBP quality. Use high-quality scaling and a higher quality value (0.85–0.95) to preserve detail.

KB is controlled by format and compression. Pick WEBP and keep quality high (0.85–0.95), then reduce dimensions only as much as needed to reach your KB target.

Yes — but if you want the fastest way, this tool lets you resize and export in one step. Photopea is great for editing; this tool is optimized for quick high-quality resizing and downloading.