How do I reduce image file size without losing quality?

FileWash uses smart compression algorithms that remove unnecessary data from images while preserving visual quality. For JPEG images, it optimizes the compression tables. For PNG images, it applies better deflate compression. You can adjust the quality slider to find your ideal balance between file size and visual fidelity — 80% quality typically gives 60-70% size reduction with imperceptible quality loss.

Is it safe to compress images online?

FileWash is uniquely safe because your images never leave your device. Unlike most online compression tools that upload your files to remote servers, FileWash processes everything locally in your browser using JavaScript. Your photos, screenshots, and documents stay on your computer the entire time.

What image formats can I compress?

FileWash supports compressing JPEG, PNG, and WebP images. JPEG compression is most effective (typically 50-80% reduction). PNG compression removes unnecessary metadata and optimizes encoding. WebP images can also be recompressed with adjustable quality.

Does compressing images reduce resolution?

No. Image compression reduces file size by optimizing how pixel data is stored, not by removing pixels. Your compressed images will have the exact same width and height as the originals. Only the encoding efficiency changes, resulting in smaller files with the same dimensions.

What is the maximum file size I can compress?

Since FileWash processes files in your browser, the limit depends on your device's available memory. Most modern devices can handle images up to 50MB or more. For very large images (100MB+), processing may be slower but will still work on devices with sufficient RAM.

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Compress Images Online — Free, Private, No Upload

Reduce JPEG, PNG, and WebP file sizes by up to 80% while maintaining visual quality. All processing happens in your browser — your images never leave your device.

Quality:80%

Drop images here to compress

JPEG, PNG, WebP — up to 50MB each