OKFree Tools
Image

Image Compressor & Format Converter

Compress image file size, convert image formats, support batch processing and real-time preview

Runs locally in your browser. Nothing is uploaded.

Upload Images

Drag and drop images here or click to select files

Supported formats: JPG, PNG, WEBP, GIF, BMP

Compression Settings

80%

File List

Please upload image files to start compression

Usage Guide

  1. 1
    Upload Images

    Drag and drop image files or click to select multiple images for processing

  2. 2
    Adjust Settings

    Set compression quality, output format, and maximum dimensions as needed

  3. 3
    Preview Results

    View real-time preview of compressed images and file size comparison

  4. 4
    Download Files

    Download individual compressed images or batch download all processed files

Usage Tips

  • Quality Settings

    Higher quality preserves image details but results in larger file sizes

  • Format Selection

    WEBP offers best compression, JPG is widely compatible, PNG preserves transparency

  • Batch Processing

    Upload multiple images at once for efficient batch compression and conversion