Lossless Image Compression

• Free online image compression tool supporting JPG, PNG, WebP, GIF and more, up to 10MB per image
• Smart algorithm shrinks file size while preserving quality, with batch processing, custom quality, output format and max dimensions, plus a before/after comparison preview

1. Open the tool page — no install needed; drag & drop or click "Select Images" to upload
2. Set compression quality (high/medium/low/custom), output format (keep original or JPEG/PNG/WebP) and max width/height as needed
3. Click "Compress All" to compress, then "Download" or "Download All" to save — multiple images are packaged into a ZIP automatically; use "Compare" to view original vs compressed

• This tool is completely free and requires no sign-up
• Everything runs locally in your browser — your images are never uploaded

Free online lossless image compression tool, supports JPG, PNG, WebP, GIF and other formats. Smart compression algorithm significantly reduces file size while maintaining image quality, with batch processing, custom compression quality, and real-time preview comparison. Suitable for website image optimization, social media uploads, email attachment compression and other scenarios.

Open the tool page — no install needed; drag & drop or click "Select Images" to upload Set compression quality (high/medium/low/custom), output format (keep original or JPEG/PNG/WebP) and max width/height as needed Click "Compress All" to compress, then "Download" or "Download All" to save — multiple images are packaged into a ZIP automatically; use "Compare" to view original vs compressed

This tool is completely free and requires no sign-up Everything runs locally in your browser — your images are never uploaded

Yes, Lossless Image Compression is completely free. No download or installation required — it runs right in your browser.