Input
The case uses the same generated image sample set as the benchmark pages so the file sizes can be reproduced.
No visitor image is used, uploaded or stored for this case study.
case-study · reduce website image weight case study
This case reduces a small page image set without changing pixel dimensions.
Case result
| Stage | Setting or check | Measured result | Decision | Limit |
|---|---|---|---|---|
| Input | Photo, screenshot, transparent, flat | 601 KB total | Candidate set | No resize |
| Step | Convert photo to WebP q78 | 310 KB | Keep if supported | Review quality |
| Step | Convert screenshot, transparent, flat | 24 KB total | Keep if supported | Transparency check |
| Output | WebP set | 334 KB total | 44% smaller | Fallback may be needed |
The case uses the same generated image sample set as the benchmark pages so the file sizes can be reproduced.
No visitor image is used, uploaded or stored for this case study.
The workflow records the original format and size, tests one or more output settings, checks the visible result and keeps the smallest result that still fits the task.
The related benchmark link explains the format or quality setting behind the choice.
Input: four mixed website images totaling 601 KB.
Steps: convert eligible assets to WebP q78.
Output: total drops to 334 KB.
Limit: destination must accept WebP.
This is a measured task example, not a guarantee for every file.
Images with more texture, transparency, text, animation or platform rules can need different settings.
Updated October 8, 2026 · Source checked: 2026-10-08
Compare measured JPEG, WebP and AVIF output sizes for photo, screenshot, transparent and flat graphic samples.
WebP Quality BenchmarkCompare WebP quality 90, 80, 70, 60 and 50 on the same photo-style sample.
Image Converter OnlineConvert images between JPG, PNG, WebP and AVIF in your browser. Private local conversion with no uploads.
Convert JPG to WebPConvert JPG images to WebP in your browser for smaller web-ready files. No upload required.
Convert PNG to WebPConvert PNG images to WebP locally in your browser. Reduce file size for screenshots and graphics without uploading.