Image Compressor
Compress images instantly in your browser. Reduce file size while maintaining quality. Supports JPEG, WebP, and PNG output formats with adjustable quality and optional resizing. All processing happens locally.
Compress images instantly in your browser. Reduce file size while maintaining visual quality by adjusting the compression level. Supports JPEG, WebP, and PNG output formats with optional resizing. All processing happens locally — your images never leave your device.
Drop an image here or click to upload
PNG, JPG, WebP, GIF — up to 50MB
100% Client-Side Processing
All image compression happens in your browser using the HTML Canvas API. Your images are never uploaded to any server. This tool works offline after the page loads.
How to Use the Image Compressor
- Upload an image — drag and drop or click to select a PNG, JPG, WebP, or GIF file (up to 50MB).
- Adjust quality — use the slider to set the compression level (1-100%). Lower values = smaller file, higher values = better quality.
- Choose output format — select JPEG for photos, WebP for best compression, or PNG for lossless output.
- Optionally resize — set a maximum width to reduce dimensions and further decrease file size.
- Download — click "Download Compressed" to save the optimized image.
Image Format Comparison
| Format | Compression | Best For |
|---|---|---|
| JPEG | Lossy, adjustable quality | Photos, complex images with gradients |
| WebP | Lossy or lossless, ~30% smaller than JPEG | Web images, best overall compression |
| PNG | Lossless, no quality loss | Screenshots, logos, images with transparency |
Common Use Cases
Web Performance
Reduce image sizes for faster page loads and better Core Web Vitals
Email Attachments
Compress images to fit email attachment size limits
Social Media
Optimize images for social platforms while keeping quality
Storage Savings
Reduce storage space needed for image archives
Design Workflow
Export optimized images from design mockups and prototypes
Presentations
Compress images to reduce presentation and document file sizes
Related Tools
Need to resize images? Try our Image Resizer. To convert between formats, use our Image Format Converter. For generating QR codes, check our QR Code Generator.
Frequently Asked Questions
What quality level should I use?▼
For most web images, 75-80% quality offers the best balance between file size and visual quality. For photos where quality matters, use 85-90%. Below 60%, compression artifacts become noticeable. For thumbnails or previews, 50-60% is acceptable.
Should I use JPEG, WebP, or PNG?▼
Use WebP for the best compression (supported in all modern browsers). Use JPEG for maximum compatibility, especially for photos. Use PNG when you need transparency or lossless quality (screenshots, logos, text-heavy images).
Why is my PNG output larger than the original?▼
PNG is a lossless format, so the quality slider has no effect. If you convert a compressed JPEG to PNG, the output may be larger because PNG preserves all pixel data without lossy compression. For smaller file sizes, use JPEG or WebP instead.
Are my images safe?▼
Yes. All compression happens entirely in your browser using the HTML Canvas API. Your images are never sent to any server. You can verify this by checking your browser's network tab — no image data is transmitted.
Frequently Asked Questions
❓ Is this tool free?
Yes! All our tools are completely free. No registration, no hidden charges, no ads. Just open and use.
🔒 Is my data safe?
Absolutely. All calculations happen in your browser. We don't store, send, or track any of your data. Everything is processed locally on your device.
📱 Can I use this on mobile?
Yes! All our tools are fully responsive and work perfectly on smartphones, tablets, and desktops.
🌐 Do I need internet?
No! Once the page loads, you can use the tool completely offline. All calculations happen in your browser without any server connection.