Free online image compressor — no upload to server, all processing in your browser. Adjust quality, pick output format, and download instantly.

Click or drag & drop an image here

JPEG · PNG · WebP · GIF · BMP

Quality 80%
Output Format

Original Size
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Compressed Size
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Reduction
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Original Compressed
Original

Download Compressed Image

How it works: Your image never leaves your device. The browser draws it onto an HTML5 Canvas and re-encodes it at the quality level you choose using canvas.toBlob(). Choose a lower quality for smaller files, or keep it high for near-lossless results.

Tips:

  • JPEG gives the smallest files for photos; PNG preserves transparency; WebP often beats both.
  • Quality around 75–85% is usually indistinguishable from the original for photos.
  • Compressing a PNG as JPEG will remove transparency — use PNG or WebP if you need it.

Related tools

Resize images → Image Resizer

Crop images → Image Cropper