Compress JPG, PNG, SVG or GIF with the best quality and compression.
or drop images here
Image compression reduces a photo's file size by re-encoding it with lossy compression, discarding some visual detail that's least noticeable to the human eye. The pixel dimensions of the image stay the same — only the amount of data needed to store it shrinks.
Most compression happens through the JPEG format's quality setting: a lower quality value compresses more aggressively (smaller file, more visible artifacts), while a higher quality value keeps more detail at the cost of a larger file.
This is a browser-based image compressor. Upload one or more images, choose a compression level, and each one is re-encoded on a canvas at a quality setting tuned to that level, shrinking the file size while keeping the same dimensions.
Three levels are available — Extreme (quality 0.4, smallest files), Recommended (quality 0.7, balanced), and Less (quality 0.9, closest to original) — and the tool reports the total bytes saved once processing finishes. PNGs are re-encoded as JPEG for maximum size reduction (WebP inputs stay WebP); everything runs locally, so your images never leave your browser.
Click "Select images" or drag and drop one or more photos onto the upload area.
Choose "Extreme compression" for the smallest file size, "Recommended compression" for a balanced result, or "Less compression" to keep quality closest to the original.
Click the compress/download button — each image is re-encoded at the chosen quality level.
The tool reports the total number of bytes saved across your batch once processing completes.
Download the compressed image directly, or as a ZIP file if you uploaded more than one.
To achieve meaningful size reduction, PNG images are re-encoded as JPEG, which does not support transparency — any transparent areas will be filled in. If you need to keep transparency, this tool isn't the right fit for that specific image.
Extreme compression uses a low quality setting (0.4) that can introduce visible blockiness, especially on images with fine detail or sharp edges — try "Recommended" or "Less compression" if quality suffers.
An image that's already been through heavy JPEG compression won't shrink much further, since most of the removable detail is already gone.
When a PNG is converted to JPEG, the output filename is automatically updated to a .jpg extension so it matches the actual file format.
Only image files (JPG, PNG, WebP) are accepted — other file types are filtered out with an error message.
A typical case shrinking a large photo down for faster page loading.
Input
banner.png — 4.2 MB, Recommended compression
Output
banner.jpg — roughly 800 KB - 1.2 MB depending on image content, same pixel dimensions
No. Compression happens entirely in your browser using the Canvas API. Your images are never sent to a server.
"Recommended compression" works well for most everyday use. Choose "Extreme compression" when file size matters most, or "Less compression" when preserving image quality is the priority.
No, only the file size is reduced — the pixel width and height stay exactly the same. Use the Resize Image tool if you also want to change dimensions.
No — PNGs are converted to JPEG during compression to achieve meaningful size savings, since JPEG's lossy compression is far more effective than PNG's lossless compression. This means transparency will be lost.
Yes, upload as many images as you like and they'll all be compressed at the same level in a single batch, downloadable as a ZIP file.
Compression reduces file size (bytes), not necessarily the displayed size on screen, which is controlled by pixel dimensions. Combine this tool with Resize Image if you need both a smaller file size and smaller dimensions.