Image Compressor — Free Online Photo Compressor & Optimizer
Compress JPG, PNG, and WebP images directly in your browser. Reduce file size without losing quality — adjust compression level with a slider and preview results instantly. 100% client-side — your images never leave your browser.
Drop an image here or browse
How to Use the Image Compressor
- Drop or select an image (JPG, PNG, or WebP) in the upload area.
- Adjust the quality slider — lower values mean smaller files but less quality.
- Preview the original and compressed images side by side.
- Download the compressed image when you're satisfied with the result.
Why Use This Image Compressor
Large images slow down websites and waste bandwidth. This compressor reduces file size by 30-80% while maintaining visual quality — perfect for web developers optimizing page speed, bloggers reducing upload sizes, and anyone sharing images online.
Unlike online services that upload your photos to their servers, this tool runs entirely in your browser using the Canvas API. Your images are never transmitted anywhere, making it safe for sensitive or private photos.
Frequently Asked Questions
The compressor supports JPG, PNG, and WebP input formats. Compressed output is always JPG for maximum compatibility. The quality slider lets you balance between file size and visual quality.
Typical reductions are 30-80% depending on the original image and quality setting. Photos with lots of detail compress less than simple graphics. At 80% quality, most photos look identical to the original but are 40-60% smaller.
The tool is limited by your browser's memory. Most browsers can handle images up to 50MB. Very large images (20MP+) may be slow on mobile devices. For best results, images under 20MB work well.
Use Cases
Website Speed
Compress images before uploading to reduce page load times and improve Core Web Vitals scores.
Email Attachments
Reduce photo sizes before sending via email to stay under attachment size limits.
Social Media
Optimize images for faster uploads to Instagram, Twitter, Facebook, and LinkedIn.
E-commerce
Compress product photos for faster-loading online stores and better SEO rankings.