Image size converter

The tool resizes input images to exact pixel dimensions with optional aspect-ratio preservation and cropping, designed for asset pipelines where precise output sizes matter for responsive layouts, thumbnails, and social previews. The approach is deterministic and predictable, avoiding repeated manual edits.
Conceptually, the tool computes a resize factor from the source width/height to the target dimensions. If aspect ratio is preserved, it scales to fit within the target box and crops if requested; if not, it scales to the exact target width and height.
Users include web designers, frontend developers, digital marketers, and content teams who need predictable image sizes across devices. Unique value comes from explicit controls over upscaling, format selection (PNG, JPEG, WEBP), and DPI metadata, combined with robust error handling for edge cases.
Core features include validation of inputs, multiple image formats, and reporting of final dimensions and file size. Typical use cases: export thumbnails at 150x150, social images at 1200x630, or hero images at 1920x1080 with crisp rendering and consistent quality.