What is the WebP format?
WebP is a modern image format developed by Google that produces smaller files than JPG or PNG at the same visual quality. It supports both lossy and lossless compression, transparency like PNG, and basic animation — one format that covers most web image needs. All major browsers have supported WebP since 2021, making it the default choice for any image published on a website.
The size advantage is substantial. A 1.2 MB JPG photograph typically converts to around 800 KB at 85% quality — a 33% reduction with no visible difference on screen. PNG screenshots and flat graphics compress even more aggressively, often 50–70% smaller. Google PageSpeed Insights and Core Web Vitals scores actively reward pages that serve WebP over older formats.
Quality and file size: how to choose
The quality slider controls the compression tradeoff. For photographs, 80–85% is the recommended default — files are roughly half the size of the original with no perceptible quality loss. For product images and hero photos where sharpness matters, 88–92% produces slightly larger but crisper results. Thumbnails and background images can go as low as 65–70% without noticeable degradation.
For logos, screenshots, and flat UI graphics, use a PNG source file and keep quality at 90% or higher. Lossy WebP compression can introduce subtle artifacts on hard edges and solid colors that are invisible in photographs but noticeable in graphics.
How to use this WebP converter
Upload your images. Drag JPG, PNG, GIF, or BMP files onto the upload area, or click to browse. Select multiple files at once to process an entire batch. Animated GIFs convert to static WebP using the first frame.
Adjust quality and max width. Set the quality slider — 85% works for most photos. Use the max width dropdown if your source images are larger than their display size. Resizing a 4,000 px photo down to 1,280 px during conversion cuts file size dramatically without touching the original.
Convert and download. Click Convert to WebP and download each file individually, or use Download All as ZIP to get the complete batch in one archive.
All processing happens in your browser — your images are never sent to a server. If you need to turn photos into a document, our JPG to PDF converter bundles multiple images into a single PDF.