Image Compressor
Reduce image file size. Set exact target size like 100KB or use quality slider.
Compression Mode
Supports decimals: 100, 100.5, 1,000 (comma as separator)
Output Format
How it works
- 1. Upload your images
- 2. Enter your target file size (e.g., 100KB)
- 3. Click Compress and download
Drop images here or click to upload
JPG, PNG, WebP, GIF (max 50MB each)
Perfect for:
Email Attachments
Compress to under 500KB
Website Images
Fast loading, better SEO
Social Media
Faster uploads
Save Storage
Free up device space
What is Image Compression?
Compress Image is a free in-browser tool that reduces image file size without uploading your files. Image compression shrinks a photo while preserving its visual quality, which is essential for faster website loading, smaller email attachments, and saving storage space on your device — and because it runs entirely in your browser, your images never leave your device.
How to Use This Tool
Upload your images
Click or drag to upload
Set compression
Choose quality or target size
Download result
Save compressed images
Frequently Asked Questions
How does compression work?
Our smart algorithms reduce file size while preserving visual quality as much as possible. For target size mode, it iteratively adjusts quality and dimensions to hit your goal.
Will quality be lost?
Some quality loss may occur when aiming for very small file sizes, but our algorithms preserve detail and visual fidelity. JPG and WebP formats offer the best compression.
Is my data safe?
Yes! All processing happens in your browser - nothing is uploaded to any server. Your files never leave your device.
What formats are supported?
JPG, PNG, WebP, and GIF input formats are supported. You can output to JPG, PNG, or WebP.
Compress JPG to a specific size
Need an exact KB or MB target? Each preset uses the same compressor with a pre-set budget.
Related Image Tools
100% Private: All compression happens in your browser. Your images never leave your device.