Compress a PNG to 50 KB
Here is the honest part: PNG is lossless, so it cannot be squeezed to an exact 50 KB while staying PNG. To hit 50 KB this tool converts your PNG to JPG, and any transparent areas become a white background.
Drop images here or click to upload
PNG, JPG, WebP, GIF, AVIF, HEIC — up to 50MB each
Output lands at or under your target. JPEG and WebP only.
- Files never leave your device
- Runs in your browser
- Free, no signup
Why an exact PNG size is not possible
PNG stores every pixel without throwing detail away, which is what lossless means. That is great for sharp edges and screenshots, but it leaves no quality to trade for a smaller byte count. To land precisely on 50 KB, the tool converts the image to JPG, which is lossy and can step quality down to match the target.
Transparency does not survive the trip to JPG, since JPG has no alpha channel. Any see-through pixels are filled with a white background. If that matters for your image, this conversion route is the wrong fit.
If you need to keep it as PNG
When the file must stay a real PNG, do not convert it. Use the compress PNG losslessly tool instead, which shrinks the PNG without changing a single pixel. It often removes a good chunk of the size while keeping transparency intact.
If you only care about hitting 50 KB and a JPG result is fine, this page works well for screenshots and graphics on a solid background. For a different target number or to start from a JPG or WebP, compress to any size gives you the dial.