Online Image Compressor

Free image compression tool: compress JPG, PNG and WebP images online, with support for JPEG, RAW and AVIF formats. Adjust quality, dimensions and output format. Images are processed locally in your browser, with no upload or signup required.

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Resize Settings

How to compress an image online

Reduce an image's file size in three steps. All image processing happens locally in your browser.

  1. 1

    Choose your image

    Select a file or drag it into the tool above. This page processes one image at a time.

  2. 2

    Choose format, quality and size

    Choose your output format and try 75% quality to start. To also reduce the pixel dimensions, enable resizing under “Resize Settings” and set the width and height.

  3. 3

    Compress and download

    Click Start Compress, compare the result with the original, then download. If the file is still too large, lower the quality or dimensions and compress again.

Adjust image file size for your needs

Choose an output format, adjust quality or reduce the dimensions of large images to suit your needs.

  • Input and output formats

    Open common image files and choose JPG, PNG, WebP, AVIF or other available output formats.

  • Control Quality and Size

    Adjust image quality and dimensions to balance file size and appearance. Results vary by image and output format.

  • Local Processing

    Images are processed in your browser and are not uploaded to a server for compression.

FAQ

How's the quality after compression?
Reducing quality can make files smaller, but may remove detail or change colors. Compare the original and compressed image, then adjust quality and dimensions to suit your needs.
Why does the compressed image have a larger file size?
The increased file size after compression is usually due to the original image being highly compressed, which can lead to an increase in size when compressed again. We recommend using the original image for compression.
Is there a size limit for compression?
Since compression is done locally, file size is mainly limited by your browser's memory. We recommend files under 50MB.
Is this image compressor free?
Yes. You can compress and download an image for free without creating an account.
Are my images uploaded to a server?
No. Image compression runs locally in your browser. You select a file from your device and download the result; the image is not sent to a server for compression.
Which output format should I choose?
Try JPG for photos, PNG for transparent graphics, or WebP for website images. Check the receiving app's supported formats, and compare the downloaded image's appearance and size.
How can I compress an image to 100KB?
Lower the quality, reduce the pixel dimensions, and check the resulting file size. Repeat if needed. The tool does not have an exact target-size setting, so it cannot guarantee a 100KB result.
Can I compress multiple images at once?
This page processes one image at a time. To process several files together, use the dedicated tool: Batch image compressor