Image Compressor

What is This Tool?

Image Compressor is a free browser-based tool that reduces image file sizes without significant quality loss. It supports JPEG, PNG, and WebP formats and processes everything locally in your browser — your images are never uploaded to any server. No sign-up, no installation required.

How to Use This Tool

1. Drag and drop images or click to upload one or more JPG, PNG, or WebP files.
2. Adjust the quality slider (1-100) to control the compression level. Lower values produce smaller files.
3. Optionally change the output format — keep the same format or convert to JPG, PNG, or WebP.
4. Click Compress All to process the images.
5. Review the before/after comparison showing original size, compressed size, and savings percentage.
6. Download individual images or all at once as a ZIP file.

When to Use This Tool

Use this tool to optimize images for websites, emails, social media, or any scenario where smaller file sizes are needed. Reducing image sizes improves page load speed, saves bandwidth, and makes sharing faster. It's a great free alternative to TinyPNG, Squoosh, or Compressor.io — and runs entirely offline after the page loads.

Tips and Best Practices

• A quality setting of 70-85 offers the best balance between size reduction and visual quality for most photographs.
• PNG images with large flat-color areas compress less with quality adjustment — consider converting to WebP for better results.
• WebP typically produces 25-35% smaller files than JPEG at equivalent visual quality.
• Use batch mode to compress multiple images at once and download them all as a ZIP.
• Your images are never uploaded to any server — all compression happens on your device using the Canvas API.