WebP encoding delivers 25–35% smaller files than JPG at the same perceptual quality. Picture Optimizer converts your JPEG library to WebP in bulk, updates every URL reference, and preserves your originals as backup.
JPG was designed in 1992. WebP was designed in 2010 by Google specifically for web delivery. WebP's VP8 encoder produces files 25–35% smaller than JPG at the same SSIM quality score.
A 600 KB JPG hero image becomes a 420 KB WebP. Across a page with 15 images, that saves 2.7 MB of bandwidth per page load. Multiply by 10,000 monthly visitors: 27 GB of saved transfer. Your hosting bill drops. Your page loads faster. Google rewards faster sites with better rankings.
Picture Optimizer does not simply re-encode pixels. The pipeline first analyzes the source JPG — its color profile, resolution, existing compression artifacts, and chroma subsampling. It then selects the optimal VP8 encoding parameters for that specific image.
Photographs with smooth gradients receive different encoding settings than product shots with sharp edges. The engine adapts per image. The output: the smallest WebP file that preserves visual fidelity above your quality threshold.
Select JPG images in your WordPress Media Library. Choose 'Process with Picture Optimizer'. Set the output format to WebP. Click Process.
Each JPG converts to WebP. The plugin replaces the original file, regenerates all thumbnail sizes as WebP, updates every img src and srcset reference in your post content, page content, and postmeta. It adds an .htaccess redirect from the old .jpg URL to the new .webp URL — so external links and cached references still work.
25 free credits on signup. No credit card. Process your first batch in under a minute.
