Resize and compress images to WebP/JPEG/PNG in the browser
Modern websites demand fast-loading images: every extra KB is lost conversions. WebP cuts image weight by a third vs. JPEG with equivalent quality, and PNGs are often 5-10× bigger than they need to be. This tool resizes and recompresses in your browser — perfect for prepping OG images, blog hero shots, or avatars before upload.
No. All encoding runs in your browser via the Canvas API. No uploads, no logging, nothing leaves your device.
WebP beats JPEG by 25-35% at the same visual quality, and beats PNG for photos. Use WebP unless you need IE 11 support (in which case, you have bigger problems).
PNG is lossless — the quality slider only affects lossy formats (WebP and JPEG).
The browser will typically handle images up to several hundred MP, but canvas memory becomes a bottleneck around 8192×8192. For bigger images, crop first.
This version processes one image at a time. Batch mode is on the roadmap.
