Image Compression Guide
Best practices to get great quality with small file sizes.
How it works
- Upload one or multiple images (JPEG/PNG/WebP/AVIF)
- Choose quality (preset or custom) and optional output size: limit long edge, keep original dimensions, or set exact width × height
- Pick output format (Auto recommended)
- Start compression and preview before/after
- Download individual images or a ZIP archive
Best practices
- Use Auto format for photos (WebP) and PNG for transparency
- Medium quality (≈80%) balances size and quality
- Resize very large images to ~1920px for big savings
- Batch compress to keep settings consistent
Privacy
All processing happens locally in your browser. Images never leave your device.