Sevio
7 formats · Alpha preserved · Secure

Convert your image to another format

Sevio detects the source format for you and cleanly re-encodes your image into the one you need: WebP and AVIF for the web, JPEG for compatibility, PNG for transparency. Upload a batch or a ZIP and convert it all at once.

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

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.
Yes. Conversion always runs on the server — files are uploaded, processed and deleted automatically right after converting. Result links are valid for a limited time.
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.
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.

Related tools

Convert your image to WebPConvert your image to JPGConvert your image to PNGConvert your image to AVIFConvert HEIC to JPG