Compress Image for Website
Compress images for faster website loading. Improve Core Web Vitals and SEO. Free, browser-based, instant.
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Drop image here or click to upload
Supports PNG, JPEG, WebP, HEIC
What to Expect
When to Compress to Web-Optimized
Compress images for Website — meet platform upload limits, share photos faster, and save storage space.
Format Tips for Web-Optimized
Use WebP format, keep images under 200KB, and implement lazy loading for best Core Web Vitals.
💡 Pro Tip: Use WebP format, keep images under 200KB, and implement lazy loading for best Core Web Vitals.
Learn More About Image Optimization
Want to dive deeper into image compression? Check out these authoritative resources:
Why Choose CompressNow?
100% Private
All compression happens in your browser. Your images never leave your device.
No File Limits
Compress as many images as you want. No daily limits, no registration required.
Exact File Size
Get precise file size control. Hit your target size every time.
How to Compress Images to Web-Optimized
Upload Your Image
Drag and drop your image or click to browse. Supports PNG, JPEG, WebP, and HEIC formats up to 25MB.
Set Target Size
Choose your desired file size or quality level. Our smart algorithm will optimize automatically.
Download Compressed
Preview the result and download your compressed image. It's that simple!
[GUIDE] New to image compression? Read our Complete Guide to Image Compression — learn how to choose the right format, size, and quality for any use case.
Frequently Asked Questions
How large should website images be?
Google recommends under 200KB per image. Hero images can go up to 500KB.
Does image size affect SEO?
Yes. Large images slow down page loads, hurting Google rankings.