Image Compressor

Our compressor uses the browser’s built-in Canvas API to re-encode your image at your chosen quality level. For JPG and WebP, this reduces file size by discarding fine detail the human eye barely notices. For PNG, lossless compression is applied. Nothing is sent to any server — all processing happens locally on your device.

For most web images, a quality of 75–85 is the sweet spot — you’ll get 60–80% file size reduction with no visible quality difference to the naked eye. For print or archival work, use 90+. For social media thumbnails and blog images, 70–80 is perfectly fine.

Completely safe. ImageToolHub processes all images entirely within your browser using JavaScript — no image data is ever transmitted to our servers. You can even use this tool offline once the page has loaded.

JPG — best for photos. Lossy compression produces very small files but doesn’t support transparency.

PNG — best for graphics, logos, screenshots. Supports transparency. Larger files than JPG.

WebP — Google’s modern format. Smaller than both JPG and PNG at similar quality. Supports transparency. Recommended for web use.

You can compress up to 20 images at a time with no individual file size limit — though very large files (50MB+) may be slow depending on your device. Since processing is done in your browser, performance depends on your device’s CPU and available memory.