MozJPEG compression — 10–20% better than standard.
Drag & drop images here
or click to browse files
Supports JPG, PNG, WebP, GIF, TIFF • Max 50MB per file
Upload JPG images
Drop JPEG files onto the upload area — supports batch uploads.
Choose quality
Use Lossy mode for best compression, or Custom to set exact quality.
Download compressed JPEGs
Click Compress All and download your optimized JPEG files.
Filezy uses MozJPEG — Mozilla's advanced JPEG encoder with trellis quantization and optimized scans. It produces 10–20% smaller files than standard JPEG at the same quality.
Quality 70–80 is a good range for web use — perceptually lossless for most content. Use the before/after slider to confirm quality before downloading.