Compress images online for free without losing quality. Reduce file size of PNG, JPEG, and WebP images while preserving photo quality. Process images in your browser — nothing is uploaded.
NuToolz Image Compressor is a free, browser-based tool that reduces image file sizes by up to 80% while preserving visual quality. It supports JPEG, PNG, and WebP formats. All compression happens locally in your browser — your images are never uploaded to any server, ensuring complete privacy.
Need to hit an exact upload limit (exam forms, profile photos, email)? Use a pre-targeted compressor:
Drag and drop or click to select the image you want to compress.
Use the quality slider to balance between file size and image quality.
Click download to save the compressed image to your device.
Upload your JPEG, PNG, or WebP image and use the quality slider. At quality 80–90, file size typically drops 60–80% with no visible difference. Lower the slider further only if you need a smaller file and can accept slight softening on close inspection.
Yes. For photos, JPEG compression at quality 85 keeps the image visually identical to the original on phones, monitors, and printouts at normal viewing distance, while cutting file size by roughly 70%. The slider lets you fine-tune the trade-off for each image.
Our smart compression algorithm reduces file size by up to 80% while maintaining visual quality that is indistinguishable to the human eye.
We support JPEG, PNG, and WebP formats. You can compress images of any of these types.
No. All compression happens directly in your browser. Your images never leave your device, ensuring complete privacy.
Yes, the Image Compressor is 100% free with no limits on the number of images you can compress. There are no hidden fees or premium tiers.
No. You can compress images instantly without signing up or creating any account.
Yes, the tool is fully responsive and works on smartphones and tablets. Just open it in your mobile browser and start compressing.