🗜️ Image Compressor
Use this free image compressor to reduce JPG, PNG and WebP file sizes while keeping images visually sharp. Compression runs directly in your browser, so photos and graphics never leave your device while you prepare them for web, email or social media.
Click to upload images
JPG, PNG, WebP • Multiple files supported
How to Use the Image Compressor
The Image Compressor is built for quick optimisation of assets before uploading them to websites, blogs and social networks. Follow these steps to shrink file sizes without installing extra software.
- Click the upload area and select one or more images in JPG, PNG or WebP format.
- Review the list of images along with their original dimensions and file sizes.
- Adjust the quality slider to choose the balance between size reduction and clarity.
- Click Compress All Images to process every file using the selected quality level.
- After compression, check the new sizes and percentage savings for each image.
- Download individual compressed images using the Download button when you are satisfied.
Key Features & Security
This tool uses the HTML canvas API in your browser to recompress images. Files are never sent to utoolsy servers; instead, they are decoded, compressed and exported entirely on your device.
- Local image compression that keeps sensitive photos on your device.
- Support for multiple uploads and batch compression in a single click.
- Quality slider to control the trade-off between file size and visual fidelity.
- Clear reporting of original and compressed sizes with percentage savings.
- Ideal for preparing images for faster page loads and lower bandwidth usage.
Frequently Asked Questions
What does the Image Compressor tool do?
The Image Compressor reduces the file size of your images by recompressing them at a chosen quality level. It is useful for making images load faster on websites, in emails and in chat apps.
Is the utoolsy Image Compressor secure?
Yes. Compression happens in your browser using the canvas API and is not sent to utoolsy servers. This means private photos and graphics remain on your device while you optimise them.
Which image types are supported?
The tool works best with common web formats such as JPG, PNG and WebP. Other formats may work as long as your browser can display them, but JPG is the main output format for compressed files.
How much can I reduce image size?
The exact savings depend on the original file and selected quality setting. The tool reports both original and compressed sizes, as well as the percentage saved, so you can tune for your use case.
Will compression reduce image quality?
Any lossy compression reduces some data, but by starting around 70–80% quality you often achieve a much smaller file with minimal visible change. You can experiment with different levels before downloading.
Related Tools
After compressing images, you can continue working with them using other free tools on utoolsy: