Who this tool is for
For people preparing images for websites, articles, product pages, portfolios, or social posts. It manages file size and dimensions; it is not a retouching or sharpening tool.
Real use cases
Article and landing-page images
A 3000 px source may only display at 800 to 1600 px. Resizing first usually saves more than aggressive quality reduction.
Product grids and portfolios
Choose the platform dimensions first, then use one batch setting so adjacent images have consistent weight and clarity.
Steps
Choose a batch, set the longest edge, then tune quality and format. Compare original size, output size, and savings before download.
Parameters
The longest edge scales width and height proportionally. Quality mainly affects JPG, WebP, and AVIF; PNG changes mostly through dimensions and re-encoding.
What to check after download
- Zoom into text edges, gradients, and fine texture for obvious blocks or smearing.
- Confirm orientation and aspect ratio are unchanged.
- Compare final size; if PNG grew, test WebP or reduce dimensions.
Common reasons a job fails
- The image cannot be read
- HEIC, camera RAW, damaged, or unusual files may not decode. Save a copy as JPG or PNG first.
- AVIF export fails
- A browser may decode AVIF without encoding it. Use WebP or update the browser.
- The page slows down
- Very large images use substantial memory. Process fewer files and reduce the longest edge.
Related guides
JPG vs PNG vs WebP vs AVIF: how to chooseChoose a format by photo content, transparency, performance, and compatibility.Image quality, resolution, and file sizeControl pixel dimensions, encoding quality, and final size in a repeatable order.Converting transparent PNG to JPG or WebPPrevent black backgrounds, halos, and brand-color changes.EXIF date, device, location, and copyright fieldsUnderstand common EXIF fields and decide what to retain, correct, or remove.Image publishing checklist for websites, social media, and ecommerceA practical workflow for appearance, format, size, metadata, and accessibility.