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

Compress images to the exact size

Sevio compresses photos and images: small JPG and WebP files are processed right in your browser, while larger files and certain operations are handled on the server. Upload a whole batch or a ZIP, pick soft compression or an exact target size, and download the result in seconds.

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

We use modern encoding algorithms. In "Soft compression" mode quality is set to 90% — visually indistinguishable from the original, but gives a 30-60% size reduction. In "Compress to size" mode the algorithm picks the quality automatically to hit your target.
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.
In "Soft compression" mode (90% quality) the difference from the original is visually unnoticeable, even on large screens. In "Compress to size" mode, when target sizes are very small, artifacts may appear — a trade-off between quality and size.

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