Free Image Compressor
Compress JPG, PNG and WebP images directly in your browser. Reduce file size quickly, easily and completely free.
Upload Your Image
Select a JPG, PNG or WebP image to compress.
How to Compress an Image
ToolNest Image Compressor lets you reduce the file size of common image formats directly in your browser. Upload an image, choose the compression quality and click the Compress Image button.
After compression, the tool shows the original file size, compressed file size and the approximate percentage of size reduction. You can then download the compressed image.
What Is Image Compression?
Image compression reduces the amount of data needed to store an image. Smaller image files can require less storage space and can be faster to transfer or upload.
The amount of compression depends on the image format, original image, dimensions and selected quality level.
Supported Image Formats
This image compressor supports the following formats:
- JPG
- JPEG
- PNG
- WebP
Does Image Compression Reduce Quality?
Compression can reduce image quality depending on the selected settings. Lower quality settings generally produce smaller files, while higher quality settings usually preserve more visual detail.
The best setting depends on how you plan to use the image. For websites, a balance between file size and visual quality is often useful.
Why Compress Images for Websites?
Large image files can take longer to transfer and may consume more storage and bandwidth. Compressing images before using them on a website can help reduce unnecessary file size.
- Reduce image file size
- Save storage space
- Reduce bandwidth usage
- Prepare images for website uploads
- Make image files easier to share
Frequently Asked Questions
Is the Image Compressor free?
Yes. ToolNest Image Compressor is free to use and does not require an account.
Are my images uploaded to the server?
No. Image compression is performed directly inside your browser using JavaScript.
Which image formats can I compress?
JPG, JPEG, PNG and WebP images are supported.
Can I choose the compression quality?
Yes. Use the quality slider to choose between smaller file size and higher image quality.
Does compression always make an image smaller?
Not always. The result depends on the original image, format and selected quality. Some already optimized images may show little or no size reduction.