Image Compressor

This tool uses the HTML5 Canvas API to compress images entirely in your browser. When you select an image, it's loaded into a canvas element where the compression algorithm reduces file size based on your quality setting. The image data never leaves your device — no network requests, no server uploads, no third-party processing. This approach is not only more private but also faster, since there's no upload/download time.

The compressor accepts JPEG, PNG, and WebP images up to 25MB. You can output to any of these formats regardless of the input format. WebP typically achieves the best compression ratios (25-35% smaller than JPEG at equivalent quality) and is supported by all modern browsers. PNG uses lossless compression and preserves transparency. JPEG is the most universally compatible format for photographs.

At 80-100% quality, the difference is virtually invisible to the human eye while still achieving 10-30% size reduction. At 60-80%, you'll see 30-60% reduction with minimal perceptible quality loss — ideal for web use. Below 60%, artifacts may become visible, but file sizes can shrink by 70-90%. Use the live preview to find the optimal balance for your specific image. Photos compress more gracefully than images with text or sharp edges.

WebP is the recommended format for web use in 2026. It provides superior compression (25-35% smaller than JPEG) while maintaining excellent quality. All modern browsers — Chrome, Firefox, Safari, Edge — support WebP. For maximum compatibility with older browsers, JPEG remains a safe choice for photographs, while PNG is best for images requiring transparency or sharp edges (logos, icons, screenshots). Use this tool's format selector to convert between formats while compressing.

No limits at all. Compress as many images as you want, as often as you want. There's no daily cap, no account required, and no premium tier. Each image can be up to 25MB. Since processing happens entirely in your browser, there are no server costs or bandwidth limits — the only constraint is your device's memory and processing power.