Image Compressor
Compress your images and reduce file size.
Drop your image here
or click to browse · max 50 MB
Settings
wasm-vips (~5MB) will be downloaded on first use and cached by your browser.
Image Compressor
Compress and optimize images by adjusting quality and output format. Reduce file sizes while maintaining visual quality. Choose between JPEG, WebP, or AVIF for maximum compression.
What is it used for?
- Optimizing images for web pages and blogs
- Meeting email attachment size limits
- Reducing storage usage for photo libraries
- Improving page load speed
Step-by-Step Guide
- Upload your image
- Select output format (JPEG, WebP, AVIF recommended for best compression)
- Adjust quality slider
- Click Convert
- Compare file sizes and download
How it works
Upload an image, adjust the quality slider, select output format, and click Convert. Lower quality = smaller file. WebP and AVIF generally produce smaller files than JPEG at the same quality.
Tips & Best Practices
- Quality 75 + WebP format is the best balance for web images
- Always compare the result visually before using compressed images
- AVIF at quality 50 often matches JPEG at quality 85
Frequently Asked Questions
Which format gives the smallest files?
AVIF > WebP > JPEG in compression efficiency. However, JPEG has the widest compatibility.
What quality should I use?
75 is good for web images. 85 for high quality. 50 for maximum compression with acceptable quality.
What quality setting should I use for web images?
Quality 70-80 is optimal for most web images. You'll get 60-80% file size reduction with minimal visible quality loss. For hero images or portfolios, use 85-90.
What's the difference between lossy and lossless compression?
Lossy compression (JPEG, WebP) permanently removes some data to achieve smaller files. Lossless compression (PNG) reduces file size without any quality loss but achieves less compression.
Privacy & Security
This tool uses wasm-vips (libvips compiled to WebAssembly). The WASM binary (~5MB) is downloaded on first use and cached by your browser. All image processing happens locally on your device - your images are never uploaded to any server. This makes it safe for sensitive, private, or confidential images.