Compress Image Online — Reduce JPG, PNG and WebP Size
Compress JPG, PNG and WebP images locally in your browser. Adjust quality and download a smaller WebP file without uploading the original image.
Your image is processed locally and is not uploaded.
About this tool
This image compressor decodes the selected image in your browser and exports it as WebP using the quality you choose. It is designed for practical web optimization where a smaller download is more important than preserving the original file format.
How to use
- Choose a JPG, PNG or WebP image from your device.
- Adjust the quality slider; lower values usually create smaller files with more visible loss.
- Process the image, inspect the result and download the compressed WebP file.
Features
- Runs entirely with browser image and canvas APIs.
- Lets you balance visual quality against output size.
- Converts supported input images to broadly supported WebP output.
Common use cases
- Reduce blog and landing-page image download sizes.
- Prepare product photos or screenshots for web publishing.
- Create smaller images for email, chat and documentation.
Common issues and tips
- Transparent PNG images remain transparent in WebP, but animated images are processed as a single frame.
- Very small or already optimized images may not become smaller at high quality settings.
Privacy
The image is decoded and compressed locally in your browser. It is not uploaded to Tools12345.
Frequently asked questions
Which output format does the compressor create?
The current compressor exports WebP because it usually provides an effective balance of quality and file size for the web.
Does compression change image dimensions?
No. This tool keeps the original pixel dimensions. Use the Image Resizer when you also need to reduce width or height.
Why can the output be larger than the original?
The source may already be highly optimized, or the chosen quality may be too high. Try a lower quality or resize large dimensions first.