About this tool
The Image Compressor reduces the file size of your JPG and PNG images directly in your browser using the HTML canvas. Adjust the quality to balance size and clarity, and optionally cap the maximum width for even smaller files. Smaller images load faster and save bandwidth — great for websites, email and social media. Your images never leave your device.
How to use
- 1Upload a JPG or PNG image.
- 2Adjust the quality slider.
- 3Download the compressed image.
Benefits
- Works fully in your browser — private.
- Adjustable quality and max width.
- Shows the size saved.
Balance file size and image quality
Practical example
A large camera photo used as a small article image can often be reduced substantially. Inspect faces, text and sharp edges at the displayed size before accepting the export.
Interpreting the result
Choose the lowest file size that still looks clean for the intended use. Web images benefit from small transfers, while print and archival copies need more detail.
Limits and common mistakes
Compression cannot restore detail already missing from the source. Repeatedly saving a lossy image can add artifacts, so always compress from the original file.
Detailed guides for this tool
Learn the underlying concepts, worked examples and common mistakes before relying on the result.
Frequently asked questions
Are my images uploaded?+
No. Compression happens locally in your browser; images never leave your device.
Will quality drop?+
You control the quality slider, so you decide the balance between size and clarity.