Advanced Image Compressor
Compress, resize and optimize your images directly in your browser.
What Is an Image Compressor?
An image compressor is an online tool that reduces the file size of an image while trying to keep the visual quality as close to the original as possible. Smaller image files are easier to store, share, upload, and use on websites.ToolsBoxly’s Image Compressor lets you compress JPG, PNG, and WebP images directly in your browser. You can choose an image, adjust the compression quality, select an output format, and download the compressed result.
How to Compress an Image
- Click the “Choose an Image” button.
- Select a JPG, PNG, or WebP image from your device.
- Choose your preferred compression quality.
- Select the output format.
- Click “Compress Image.”
- Review the original and compressed file sizes.
- Click “Download Compressed Image” to save the result.
The compression process is performed directly in your browser. This means the tool does not need to upload your image to a separate image-processing service for the compression process.
Understanding Compression Quality
The quality setting controls how strongly the image is compressed. A higher quality setting generally preserves more visual detail but may produce a larger file. A lower quality setting can produce a smaller file but may create more visible changes in the image.For everyday photographs, a quality setting around 70% to 85% can be a useful starting point. You can adjust the setting depending on whether you care more about file size or image detail.
JPG, PNG, or WebP: Which Format Should You Use?
JPG is commonly used for photographs and other images containing many colors. It can provide relatively small file sizes while maintaining good visual quality.
PNG is useful when an image needs lossless compression or transparency. PNG files can be larger than JPG files, especially for photographs.
WebP is a modern image format designed to provide efficient compression while supporting features such as transparency. It can be a useful choice for websites when the systems and browsers you use support it.
Does Compressing an Image Reduce Quality?
Image compression can reduce some visual detail, particularly when a lower quality setting is used. The amount of visible change depends on the original image, its format, dimensions, and the compression settings.For important images, keep the original file and compare the compressed version before replacing it.
Why Compress Images?
Large image files can take longer to upload, download, store, and transfer. Reducing unnecessary file size can make images easier to share and can help keep website pages lighter.Compression is especially useful when preparing images for websites, email attachments, online forms, documents, and social media.
Are My Images Uploaded to a Server?
The Image Compressor on this page is designed to process supported images directly in your browser. The image-processing operation uses your device’s browser capabilities rather than requiring a separate upload service.For privacy, you should still avoid using any online tool for confidential or sensitive files unless you understand how that particular tool handles your information.
What Image Types Are Supported?
The Image Compressor supports:
- JPG/JPEG
- PNG
- WebP
The maximum file size supported by the current tool is 20 MB per image.
Tips for Better Image Compression
- Keep the original image before compression.
- Start with around 80% quality for photographs.
- Use JPG for many ordinary photographs.
- Consider WebP when you want an efficient modern web format.
- Use PNG when transparency or lossless output is important.
- Compare the compressed image with the original before using it.
Frequently Asked Questions
Can I compress an image for free?
Yes. The ToolsBoxly Image Compressor is designed as a free browser-based tool.
Does the tool work on mobile devices?
The tool is designed to work with modern web browsers on desktop and mobile devices. Your available file-selection options may depend on your device and browser.
Can I compress JPG images?
Yes. JPG and JPEG images are supported.
Can I compress PNG images?
Yes. PNG images are supported, and you can choose a supported output format before compression.
Can I convert an image while compressing it?
Yes. The tool allows you to select JPG, WebP, or PNG as the output format where supported by your browser.
Will compression always make the file smaller?
Not necessarily. Depending on the original image and selected format and quality, the resulting file may sometimes be similar in size or even larger. The tool shows the original and compressed sizes so you can compare them.
Is image compression the same as resizing?
No. Compression mainly changes how image data is stored to reduce file size. Resizing changes the image’s dimensions, such as reducing a 4000 × 3000 image to 1600 × 1200 pixels. Both techniques can be used together when appropriate.
Can I keep my original image?
Yes. Compression creates a separate result for download. It is recommended to keep your original file until you are satisfied with the compressed version.
Related Image Tools
Continue with another image task: JPG Compressor, Image Resizer, or Image to PDF Converter.