Image Compressor: Compress Images Online
Reduce image file size while balancing quality. Processing for supported tools happens locally in your browser.
A preview of the output appears below before the download starts. Your original file stays unchanged.
Images are processed on your device using your browser. Image format support depends on your browser.
About Image Compressor
Use this browser-based utility for everyday tasks. Review output before relying on it and retain a copy of important originals.
Read the Image Compressor guide →About Image Compressor
Image compression can make a photo easier to upload or share. Choose a supported image, select a quality setting and compare the output with the original before replacing or publishing it.
How to use Image Compressor
- Choose a supported image file from your device.
- Review the preview and original pixel dimensions.
- Set the output dimensions if you need to resize as well as compress.
- Choose a quality level and process the image.
- Compare visual detail and file size, then download the copy that suits the destination.
Meeting an upload limit
Forms often state a maximum file size, such as a number of kilobytes, and sometimes a pixel size as well. Resize to the pixel size they ask for, compress, then check the file size in your phone's file manager or in the file properties on a computer. If it is still too large, lower the quality a little and try again. Compress from the original each time, because saving a compressed picture again and again loses more detail.
Frequently asked questions
Will compression always make the file smaller?
Not always. Source format, image content and selected settings affect the output size. Compare the generated file before using it.
Does this upload my image?
The available image workflow processes the selected file in the browser and starts a download on your device.
How do I get a photo under a size limit?
Resize it to the size the form asks for, then lower the quality step by step until the file is below the limit, checking the picture each time.
Which helps more, lower quality or smaller dimensions?
For a large photo, smaller dimensions. Use both when you need a very small file.
More Image tools
- JPG to PNG: Convert a JPG image into PNG format
- PNG to JPG: Convert a PNG image into JPG format
- WEBP Converter: Convert images to or from WEBP format
- Image Resizer: Resize an image to specific dimensions
- Image Cropper: Crop an image to the area you need
- Image Rotator: Rotate an image before downloading
Want more detail, examples and answers to common questions? Read the Image Compressor guide.