Compress image files
Compression uses local canvas processing in your browser.
PNG transparency can flatten on JPEG output.
Why this tool works well
- Compression happens locally for safer client assets.
- Quality slider helps balance fidelity and file size.
- Quick download flow for immediate publishing use.
- Before uploading images to a CMS, e-commerce platform, or social media, compress them to reduce page load times. A 2MB hero image compressed to 200KB loads ten times faster with minimal visible quality difference.
- For product photography with consistent subjects, find a quality setting that produces acceptable results at small sizes, then apply the same setting to the full batch for consistent output.
Use cases
Landing pages
Reduce hero image weight before deployment.
Content publishing
Optimize article images for better Core Web Vitals.
Portfolio updates
Ship lighter media while preserving useful detail.
Practical examples
Photo optimization
Input: 2.4MB JPEG
Output: Compressed version ready for upload
PNG conversion
Input: Transparent PNG
Output: WebP/JPEG export with chosen quality
Suggested workflow
FAQ
Will this keep quality acceptable?
Yes, use the quality slider to control compression intensity.
Are images uploaded?
No, file processing happens in your browser canvas context.
What is the difference between lossy and lossless compression?
Lossless compression reduces file size without discarding any image data — the decompressed image is pixel-identical to the original. Lossy compression discards imperceptible data to achieve much higher compression ratios at the cost of minor quality reduction.
Which format should I use for web images?
WebP provides the best compression for web use, typically 25-35% smaller than JPEG at equivalent quality. Use JPEG for photographs, PNG for images with transparency or sharp edges like logos, and WebP when browser support is not a constraint.
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