What this tool does
Image Delivery QA audits an image's encoded bytes, dimensions, transparency, and estimated decoded memory.
← All Tools![Selected local image preview]()
🖼️ Image Delivery QA Workbench
Inspect what an image costs to deliver and decode, then move directly into the right optimization tool with a deterministic reason.
Responsive delivery plan
This produces filenames, srcset, sizes, format candidates, and decoded-memory estimates only. It does not resize, convert, compress, or estimate encoded-byte savings.
Image inventory
Delivery findings
Recommended next tools
Recommendations hand off to image-compressor, image-resizer, or image-converter with a specific reason.
Decoded pixel memory estimates RGBA bytes as width × height × 4. Alpha channel detection samples decoded pixels and may not represent every animation frame.
Why it is useful
It explains why an asset may be expensive and sends it to the existing compressor, resizer, or format converter with a concrete reason.
Metrics
The browser reads intrinsic dimensions, encoded file bytes, alpha samples, and RGBA decoded-memory estimates.
Heuristics
Thresholds are practical warnings rather than universal performance budgets; inspect quality after optimization.
Privacy note
Files are decoded and sampled locally in your browser.
Important limitation
Animated frames, metadata, network caching, responsive image markup, and visual quality still need separate review.
Quick answers
Is my image uploaded?
No. The selected file stays in your browser.
Why can a small file use lots of memory?
Browsers decode images into full pixel buffers; encoded compression does not shrink RGBA memory.
Common Use Cases
Preflight a hero image
Check whether a marketing image is oversized before publishing.
Choose the next optimization step
Follow a reasoned handoff to compress, resize, or convert the local asset.