1. Requirements become clear checks
Workbox recognizes common wording for format, KB or MB limits, dimensions, and aspect ratio. Conflicting rules stop the process instead of producing a misleading result.
How it works
AI can understand a request. Only code decides whether the file passes.
Workbox separates requirement interpretation from deterministic image processing and final validation.
2. Your browser prepares the image
Conversion, resizing, cropping, and target-size optimization run locally. A worker is used when the browser supports it so the page stays responsive.
3. The final file is checked again
Workbox reads the real output format, byte size, width, height, and shape. “Ready to submit” appears only when every requested check passes.
4. You download the validated file
No account or cloud library is created. The result remains in the current browser tab until you download it or start over.