Free online image compressor for everyday uploads
ZipMyPix is a simple image size reducer for people who need to meet upload limits on application forms, websites, email attachments and online profiles. Choose a preset such as 20KB, 50KB, 100KB or 200KB, or enter a custom target. You can also compress by quality when you would rather choose the balance yourself.
Why reduce an image file size?
Smaller image files are easier to upload, share and store. Many forms set a maximum photo size, while websites and email services may limit attachment sizes. Reducing file size can help meet those limits, although it does not guarantee that an image will meet a website's separate dimension, format or aspect-ratio rules.
How to get a clearer compressed image
- Start with the largest, clearest original image available.
- Use a target size that meets the upload requirement without going unnecessarily low.
- Keep the original dimensions when possible; enable gradual resizing only when needed.
- Compare the downloaded image with the original before submitting or printing it.
- Keep a copy of your original because compression can reduce image detail.
Supported formats and transparency
You can select JPG, PNG and WebP files, and AVIF where your browser supports it. Output options depend on the browser's built-in image encoder. JPG is usually suitable for photographs but does not support transparent backgrounds. PNG preserves transparency and uses lossless encoding, so it may not shrink as much as a JPEG or WebP photograph.
Frequently asked questions
Can I compress an image to exactly 20KB?
The compressor tries to reach your chosen target, but an exact size is not possible for every image. Results depend on image detail, dimensions, format and browser encoding. If the target cannot be reached within the quality and resizing limits, the tool tells you instead of silently promising an exact result.
Are my images uploaded to a server?
No. The compression process runs locally in your browser. The image files you select are not uploaded by this tool. Your browser may still store normal website data such as cached page assets.
Which formats can I use?
JPG, PNG and WebP are supported, with AVIF accepted where the browser can decode it. The available output formats depend on browser support.
Will PNG transparency be preserved?
PNG output preserves transparency. WebP can also support transparency when your browser's encoder supports it. JPG does not support transparency and will use a solid background.
Does compression reduce image dimensions?
Not necessarily. The maximum width setting can limit very large images, and gradual resizing can be used when needed to reach a target. The result panel shows the output dimensions so you can check them.
Is this tool free?
Yes. You can use the browser-based compressor without creating an account. Your device's memory and browser capabilities may limit the size or number of images you can process at once.
Privacy notice
ZipMyPix processes selected images in your browser and does not send those image files to its own server for compression. We do not ask you to create an account to use the tool. If advertising, analytics or other third-party services are added to this website, those providers may use cookies or similar technologies according to their own policies and your consent choices where required. Review and update this notice to accurately describe every service enabled on the live website before launch.
Terms of use
This tool is provided free of charge on an as-available basis. Compression results vary by source image, browser, format and settings. You are responsible for checking the resulting file and confirming that it meets the requirements of the website or service where you plan to upload it. Keep your original files. Do not use the tool to process content you do not have the right to use. To the extent permitted by applicable law, ZipMyPix makes no guarantee that every image can reach a specific file size or retain all original detail.
