A complete guide to converting your images to WebP format entirely in your browser — free, private, and offline-ready.
WebP is a modern image format developed by Google that provides superior compression for images on the web. At equivalent image quality, WebP images are 25–35% smaller than JPEG and up to 26% smaller than PNG files. This means faster page loads, lower bandwidth costs, and better SEO rankings.
WebP supports both lossy and lossless compression, transparency (alpha channel), and even animation — making it a versatile replacement for JPEG, PNG, and GIF in most cases.
Navigate to the Image to WebP Converter. The tool runs entirely in your browser — no software to download, no account to create, no files uploaded to any server.
Drag and drop your image onto the drop zone, or click to browse and select a file. The converter accepts PNG, JPG, GIF, BMP, and SVG formats.
By default, the converter preserves your original dimensions. You can optionally resize to custom dimensions or adjust the quality slider (10–100%) to balance file size against image quality.
Click the "Convert to WebP" button. The conversion happens instantly in your browser, and your .webp file downloads automatically.
WebP is supported by all modern browsers:
For older browsers (Safari 13 and below, Internet Explorer), you'll still want JPEG or PNG fallbacks. But those browsers represent less than 5% of global web traffic.
Drag and drop multiple images onto the drop zone, or click to browse and select several files at once. The tool accepts PNG, JPG, GIF, BMP, and SVG formats — mix and match as needed.
After loading, you'll see a list of all your images with their file sizes. You can adjust the quality slider (10–100%) before converting — the same setting applies to all images.
Click "Convert All" and watch each image convert one by one. Progress is shown in real time with checkmarks for completed files and spinners for those in progress.
Once all conversions are complete, click "Download All (.zip)" to get a single archive containing all your WebP files. No need to save each one individually.
Yes. At equivalent quality, WebP is typically 25–35% smaller than JPEG and up to 26% smaller than PNG. The exact savings depend on the image content.
Yes — WebP supports alpha transparency just like PNG, but with smaller file sizes. If you need transparent backgrounds, choose WebP over PNG.
Most image editors support WebP input, but converting back increases file size. Keep your originals as WebP and only convert when you need a specific format for a particular platform.
Yes. Your images never leave your device — all conversion happens locally in your browser using the Canvas API. No account, no upload, no tracking.
Yes — after the first visit, the service worker caches all resources, enabling offline use on supported browsers.
Yes! Simply select or drag multiple images, click "Convert All," and download everything as a single ZIP file. Each image is converted locally using the same quality setting.
There's no fixed limit, but browser memory constrains what's practical. Batches of 20–50 images work well on most devices. For very large projects, split into smaller groups for best performance.