Sevio
No sign-up · Secure · To your target size

Compress PNG online

PNG doesn’t compress well losslessly, especially photos. Compress PNG while keeping transparency, or convert it to WebP for a file 5–10× lighter at the same visual sharpness.

Upload up to 20 images at once with a total size of up to 30 MB — completely free, no sign-up required. Create an account or to compress up to 30 images with a total size of up to 50 MB.

Compression mode

applies to all files

Auto mode

Maximum compression with no visible quality loss.

How it works

  1. 1

    Drop your images or pick files — a ZIP archive works too.

  2. 2

    Choose the compression mode and, if needed, a target size.

  3. 3

    Download the results one by one or as a single ZIP.

Frequently asked questions

PNG is a lossless format and isn't well-suited for compressing photos. If you need a very small PNG file without visible artifacts, we recommend converting it to WebP. WebP gives 5-10x better compression at the same visual quality.
JPG and WebP files up to 20 MB are processed directly in your browser — we don't upload them to our servers. Files larger than 20 MB or in other formats (PNG, AVIF, HEIC) are processed on the server and deleted automatically after processing.
Without an account — up to 20 files with a total size of up to 30 MB. With an account — up to 30 files with a total size of up to 50 MB. Per-file limit is 50 MB.

Related tools