What is Image Compressor?
Large images can slow pages and make uploads inconvenient. This compressor uses the browser canvas to create a new JPEG or WebP copy at a selected quality level, showing the before and after size so you can choose a practical balance.
SmartToolkit is built around transparent inputs and readable results. Where the task can run entirely in the browser, the page is designed to do so without intentionally uploading the working data to a SmartToolkit application server.
Common uses
- Reducing photo size before web upload
- Testing JPEG versus WebP output
- Creating a lighter copy for sharing
- Improving page-weight budgets for web content
How to use this tool
- Choose an image from your device.
- Select JPEG or WebP output and set the quality slider.
- Press Compress image.
- Compare the sizes and download the result if it meets your needs.
Frequently asked questions
Does compression happen online?
The page is online, but the selected image is processed locally in your browser and is not intentionally uploaded to SmartToolkit.
Why can PNG-to-JPEG change transparency?
JPEG does not support transparency, so transparent areas are filled with a light background.
What quality should I choose?
There is no single best setting. Start around 80% and compare visual quality with file size.
Before you use the result
General-purpose tools are useful for drafting, checking and routine calculations, but the destination system may have its own rules. Review important results before using them in financial, academic, professional or production workflows.