Image Resize Tool

The tool resizes images by width and height while optionally preserving aspect ratio. It targets developers, marketers, and content teams who need consistent asset dimensions for web and social feeds. It supports multiple input formats and outputs resized files suitable for CMS uploads and performance budgets.
Core logic includes scaling using bicubic interpolation, recompression to a chosen quality, and optional format conversion (JPEG, PNG, WebP). If aspect ratio is preserved, missing dimension is computed from the provided one. Batch support is available for processing multiple images in a single run.
Outputs include the resized image, the actual dimensions, and file size. The tool handles edge cases like invalid inputs, zero or negative dimensions, and unsupported formats with clear data-only signals. It follows standard web performance and localization norms (px units, en-us defaults) and explicitly excludes advanced image edits or content-aware resizing.