local-only

Image Compressor

Compress JPEG, PNG and WebP without uploading.

🔒 local memory only
Initializing Image Compressor in local browser environment…

How to use Image Compressor

  1. Drag and drop an image (JPEG, PNG, or WebP) into the dropzone.
  2. Adjust the quality slider (0.1 to 1.0) and choose your target format.
  3. Review the real-time file size comparison and savings percentage.
  4. Click "Download compressed" to save your optimized image.

Why use this local-first tool?

  • Compresses images using the browser HTML5 Canvas API without transmitting bytes over the web.
  • Displays before-and-after file size metrics and percentage reduction.
  • Export to high-efficiency WebP or standard JPEG formats.

Frequently Asked Questions

Are my private photos uploaded to a cloud server?

No. The entire compression process takes place within your computer GPU/CPU via the HTML5 canvas toBlob API. Your images never leave your browser.

Which format gives the smallest file size?

WebP typically provides 25% to 35% better compression than JPEG at equivalent visual quality.

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