Image Compressor

Compress images directly in your browser. Pick a quality level, watch the estimated size update, and download a smaller file in seconds — no uploads, no sign-up.

Your image is processed entirely in your browser. It is never uploaded to our servers and never leaves your device.

How to use Image Compressor

  1. Drag an image into the box, or click to choose one from your device.
  2. Move the quality slider left for a smaller file, right for sharper output.
  3. Pick an output format — keep the original, or switch to JPEG, PNG or WebP.
  4. Check the estimated output size, then press “Compress”.
  5. Download the compressed image and use it anywhere.

About this tool

Image files often carry far more data than they need. Cameras and design tools save images with generous quality settings, so a photo that looks identical at 80% quality may be three times larger than it has to be.

This tool re-encodes your image at the quality you choose, in the format you choose, and reports the size before you download. Everything happens locally in your browser, so even large files are handled privately and quickly.

Frequently asked questions

How much can I compress an image?
It depends on the image. Photographs compress the most, often by 60–90% with little visible difference. Images with flat colors or text compress less. Use the preview and estimated size to judge the result before downloading.
Will compression reduce image quality?
JPEG and WebP use lossy compression, so lowering the quality setting discards some detail. At quality levels of 70–85 the change is usually hard to notice. PNG output stays lossless, which is why it produces larger files.
Is my image uploaded to a server?
No. The entire compression process runs in your browser using local browser APIs. Your file is never transmitted, stored or seen by anyone.
Which formats can I compress?
You can open JPG, PNG and WebP files, and export to JPG, PNG or WebP. Other formats (such as GIF or BMP) can be opened by most browsers and exported as one of the three supported types.

Related tools

Image Resizer Resize images to exact pixel dimensions or by percentage, online and free. Image Cropper Crop images with a draggable selection and common aspect-ratio presets. JPG to WebP Convert JPG images to WebP — smaller files with the same visual quality. PNG to WebP Convert PNG images to WebP for much smaller files.