Image Compressor
Shrink image file sizes and compare the result before downloading. Adjust the compression level for JPG, PNG and WebP files.
How to image compressor
Three steps. No Photoshop skills needed.
Upload your image
Drop any JPG, PNG or WebP file into the compressor.
Adjust quality
Use the slider to balance file size and image quality.
Download compressed file
Save the smaller file after checking the preview.
What You Can Do with This Tool
Image compression reduces file size by removing redundant data from the image. There are two types: lossy and lossless. Lossy compression discards some image data permanently, which reduces quality slightly but saves much more space. Lossless compression reorganizes the data more efficiently without losing any quality.
The tradeoff is always quality versus file size. A 5MB product photo compressed to 500KB at 80% quality may look almost unchanged at normal viewing size. Push the quality too low and flat blocks start showing up around lettering, borders and fine detail. The sweet spot for many web images is around 70-85% quality.
Use this page when you want control. You can adjust quality, compare the result and decide how much visual detail you are willing to trade for a smaller file. That makes it useful for websites, emails, presentations and product galleries.
If you need to hit a strict number like 100KB or 200KB, use the target-size tools instead. This compressor is better when you care about the balance between quality and weight more than a single exact limit.
Frequently Asked Questions
How do I compress images without losing quality? Is that even possible?
It depends on the format. PNG compression can be lossless, so pixels stay the same. JPEG compression is lossy, which means it removes some detail to make the file smaller. At higher quality settings, the change may be hard to notice. The preview helps you decide where the file is small enough without looking damaged.
What's the difference between lossy and lossless compression?
Lossless means the image looks exactly the same after compression. Not a single pixel changes. PNG uses this. Lossy means some detail gets removed to make the file smaller. The image looks almost the same but isn't identical. JPEG and WebP use this. For photos, lossy at 80-85% is usually the best balance of size and quality.
Is there a compressor that works in my browser so my photos don't get uploaded to someone else's server?
That's exactly how this tool works. Everything runs locally in your browser. Your images never leave your device and never touch our servers. You can verify this by checking your browser's network tab while using the tool. Zero image uploads.
Which format compresses best: JPG, PNG, WebP or AVIF?
For photos, WebP often gives smaller files than JPEG at a similar visual quality. JPEG is still the safest format for compatibility. PNG is larger for photos but useful for transparency, text and sharp edges. AVIF can be smaller again, but support and workflow compatibility still vary.
I'm scared of ruining my original photo. Will this tool overwrite my file?
No. The tool creates a new compressed copy. Your original file on your device stays completely untouched. You download the compressed version as a separate file.