Image Tool

IMAGE COMPRESSOR

Drop an image to compress. All processing stays on your device.

Private by design No signup · Free

Quality

10%80%100%

Format

Resize — optional

Width

Lock

Height

Frequently Asked Questions

How does the image compressor work?

Upload your image, adjust the quality slider, and the tool compresses it instantly in your browser. You can compare the original and compressed versions side by side or with a slider. All processing stays on your device — nothing is uploaded to any server.

What image formats are supported?

The tool supports JPEG, PNG, and WebP formats. You can also convert between these formats by selecting a different output format before compressing.

Does compression reduce image quality?

Compression reduces file size by removing non-visible data and optimizing how the image is stored. The visual quality depends on the compression level you set — higher quality values (80-100%) preserve more detail while still reducing file size.

What file formats are supported?

We support PNG, JPG, JPEG, WebP, and other common image formats. The tool processes files directly in your browser. In Image Compressor, processing runs on your device.

Is there a file size limit?

Images up to 10MB are recommended for optimal performance. Larger files may take longer to process depending on your device. In Image Compressor, processing runs on your device.

Does this reduce image quality?

The tool uses optimized algorithms to maintain the highest possible quality while processing your images. In Image Compressor, processing runs on your device.

Is my image data private?

Yes. All image processing happens locally on your device. Your images are never uploaded to any server or stored anywhere.

How to Use

Upload your image

Drag and drop an image or click the upload area to select a file. Supported formats are JPEG, PNG, and WebP up to 10 MB.

Adjust quality & options

Use the quality slider to control compression level. Optionally change the output format or resize the image under the Resize section.

Download the result

Compare the original and compressed image using side-by-side or slider view. Click Download to save your compressed image.

How to Calculate

Size drops come from the quality slider plus format recoding: WebP at quality 80 is typically ~30 percent smaller than equivalent JPEG. Estimated output = pixels x bytes-per-pixel x quality factor, previewed side by side.

About the Image Compressor

The Image Compressor is a free online tool that helps you reduce image file size while maintaining high quality.

Compression uses canvas encoding on your device, cutting upload size without server queues. Compare quality levels side by side and keep the smallest file that still looks sharp.

Related Tools

Image Background Remover

Methodology & feedback

Figures run locally in your browser from the values you enter (page updated 2026-10-02). Estimates are educational only — verify finance, tax and health decisions with a qualified professional (see Disclaimer). Spotted an error? Report it via contact and we correct with a new update date.

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