StackToolkit

Image Converter & Compressor

Convert, resize, and compress images with batch processing support

Upload Images

Drag & drop images here or click to browse

Supports JPEG, PNG, WebP, BMP, and other image formats

Conversion Settings

Smaller fileBetter quality

Information

Supported Formats:

  • • JPEG: Best for photos, lossy compression
  • • PNG: Best for graphics, lossless with transparency
  • • WebP: Modern format with excellent compression
  • • BMP: Uncompressed bitmap format

Features:

  • • Batch processing support
  • • Resize with aspect ratio preservation
  • • Quality adjustment for compression
  • • File size comparison

Privacy:

All image processing is done locally in your browser. No images are uploaded to external servers.