How to compress an image to under 50 KB

The short answer

Choose a JPG, PNG or WebP image, set the target to 50 KB, and compress it. Check the downloaded size and dimensions before uploading it elsewhere. The compressor may reduce dimensions to reach the target; an exact byte size is not guaranteed.

Steps to follow

1. Open Compress Image and choose your file.
2. Choose an accepted output format and enter 50 as the target KB.
3. Compress, inspect the preview, and check both the output size and dimensions.
4. Download the file and confirm the destination accepts it.

Check the destination first

An upload form can impose both a file-size limit and required dimensions. Reducing quality changes file size; changing width and height changes the pixels. Check both requirements before starting, and keep your original file. This compressor accepts images up to 20 MB, 24 million pixels and 8,192 pixels per side.

Choose a format that fits the image

JPEG is useful for photographs and fills transparent pixels with white. PNG keeps transparency but its lossless encoder ignores the lossy quality slider. Supported WebP output can combine transparency and lossy compression. Use a format accepted by the destination.

Read the result instead of assuming success

The target search adjusts quality and can reduce dimensions. If it cannot reach the target within its limits, the tool reports that. KB here means 1,000 bytes, so a 50 KB target means 50,000 bytes. Browser exports flatten animation and can remove metadata or color profiles. Inspect small text, faces and signatures before using the result.