Sevio
7 formats · Alpha preserved · Secure

Convert your image to WebP

WebP is noticeably lighter than JPEG and PNG at the same sharpness and keeps transparency. Convert images to WebP to speed up your site and improve Core Web Vitals — in a batch, right in your browser.

Upload up to 20 images at once with a total size up to 30 MB, completely free and without signing up. Create an account or to convert up to 30 images with a total size up to 50 MB.

Choose format

applies to all files

Files are deleted automatically after 1 hourSecure processingNo registration required

How it works

  1. 1

    Upload your images or a ZIP archive.

  2. 2

    Pick the target format — Sevio suggests the best one.

  3. 3

    Download the result file by file or as a single ZIP.

Frequently asked questions

For the web — WebP (best balance of size and quality) or AVIF (maximum compression). JPEG — universal compatibility for photos. PNG — when you need transparency or a lossless format. Each format has a short hint right in the picker.
Input: JPG (JPEG), PNG, WebP, AVIF, HEIC, HEIF, GIF and TIFF. Output: WebP, AVIF, JPEG, PNG, TIFF and GIF. HEIC/HEIF are handy to convert to JPEG for compatibility with all devices.
Files are re-encoded on the server with modern algorithms. We decode the source image and re-encode it into the format you pick with optimal settings — e.g. JPG → WebP or HEIC → JPEG.

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