Image tools

Image Compressor

Make image files smaller for websites, email and sharing. Choose the output quality and compare the result before downloading.

Quick answer

Choose an image, set the quality and select Compress. The image is re-encoded locally in your browser, and you can preview the result before downloading.

YOUR FILES

Add files to get started

Local processing
Drop files here

or from your device

JPG, PNG, WebP and common image files · up to 40 MB each
Private by design

Your files are processed locally in your browser whenever supported. Inputs are not stored on itotii servers.

What is Image Compressor?

Make image files smaller for websites, email and sharing. Choose the output quality and compare the result before downloading.

Choose an image, set the quality and select Compress. The image is re-encoded locally in your browser, and you can preview the result before downloading.

How to use this tool

  1. 1

    Add JPG, PNG or WebP images; choose several files for a batch.

  2. 2

    Set the target quality for lossy formats, then compress to create local copies.

  3. 3

    Compare each output size with its original and download the results you want.

Features

  • Compress multiple images in one batch
  • Compare original and optimized file sizes
  • No upload or account required

Example

A 2.4 MB JPEG re-encoded at 78% quality may be substantially smaller while remaining suitable for a web page.

Frequently asked questions

Which image formats can I compress?+

The tool accepts common browser-readable JPEG, PNG, WebP, GIF and BMP images. Output is JPEG, PNG or WebP.

Will every image become smaller?+

Not always. Lossless PNG output or an already optimized image can stay the same size or grow. The size comparison shows the actual result.

About this image compressor

Image Compressor is part of itotii’s free collection of browser-based utilities. It is designed for a quick workflow: find the tool, complete the task and keep control of your files and data.

Output depends on your input and browser support. Review the result before using it in a published or important document.