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Image Compressor

A completely free online image compressor that supports batch compression of JPG, PNG, WebP, BMP, and AVIF formats. Significantly reduce file sizes while maintaining visual quality, or specify a target file size for precise output control. All processing is done locally in your browser—no uploads required, ensuring complete privacy.

100% Free
No File Storage
No Login
Easy to Use
JPGPNGWEBPBMPAVIFHEICHEIF

Compression Settings

LowHigh

How to Use

  1. 1

    Upload Images

    Click the upload area to select images or drag and drop. Supports JPG, PNG, WebP, BMP, AVIF. Batch compression supported.

  2. 2

    Select Output Format

    Choose the output format. Select 'Keep Original' to keep the source format, or pick a specific format like JPG, PNG, WebP, etc.

  3. 3

    Choose Compression Mode

    Choose 'By Quality' to manually adjust quality, or 'By Target Size' to specify a desired file size—the tool will adjust quality automatically.

  4. 4

    Adjust Settings

    Quality mode: drag slider to set compression quality; lower = smaller file. Target size mode: enter target size in KB and the tool will optimize quality.

  5. 5

    Compress

    Click 'Compress' to start. All compression is local — your images never leave your device.

  6. 6

    Download Results

    After compression, download images individually or as ZIP. Results show original size, compressed size, and compression ratio.

Tips

  • •All processing is local; data is cleared when the page is closed.
  • •'By Target Size' is ideal for uploading to sites with file size limits.
  • •A quality of 60–80 offers a good balance between file size and image quality.
  • •PNG is lossless compression; the reduction may be less noticeable than with JPG or WebP.

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