Will compression reduce image quality?
It can, depending on the quality setting. Light compression often looks almost the same while making the file much smaller.
Compress Image
Compress JPG, PNG, WebP, and GIF images online for free. Reduce image file size in your browser with no upload, no signup.
Your images stay private No signup required Always free. No limits.
Compress to a specific file size
Need to meet an upload limit? Use a dedicated target-size compressor to automatically reduce your image under a specific file size.
Compress Image to 100KBBest for avatars, online forms, and small upload limits.Compress Image to 200KBBest for document photos, passport photos, and official uploads.Compress Image to 500KBBest for email attachments, blog images, and product photos.Compress Image to 1MBBest for phone photos, social sharing, and larger upload limits.
Frequently Asked Questions
Which format should I use?
Use JPG for photos, PNG for transparency or screenshots, and WebP for smaller web-ready images.
Can I compress an image to a specific file size?
Yes. For exact upload limits, use NanoImage's target-size tools for 100KB, 200KB, 500KB, and 1MB. These pages automatically find the best quality under your chosen file size.
Does NanoImage upload my images?
No. All processing happens in your browser. Your images never leave your device.