GADREX · FREE IMAGE TOOL

Free Image Compressor Online

Compress JPG, PNG and WebP images online for free. Choose quality and format, reduce file size, compare the original and compressed image, and download the optimized image instantly.

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Drop your image here or choose an image from your device Choose Image
JPG PNG WebP Max 20 MB
PREVIEW
Your image will appear here
No image selected —
QUALITY
Compression quality 80%
80% is a good balance between quality and file size.
OUTPUT FORMAT
JPG is best for most photos. Transparency becomes white.
OPTIONAL RESIZE
Maximum width Original
Leave this at Original if you only want compression.
YOUR RESULT · ORIGINAL VS COMPRESSED
Original —
Original image
File Size: —
Compressed —
Compressed image High Quality
File Size: —
Quality 80% Format JPG Saved 0% Time —
Download Compressed Image
🔒 Your image stays in your browser. Compression happens locally on your device.

Free Image Compressor Online

Gadrex Image Compressor lets you reduce the file size of JPG, PNG and WebP images directly in your browser. Choose the quality, select an output format, optionally resize the image, compare the original with the compressed result, and download the optimized file.

For many photographs, a quality setting around 70–85% is a useful starting point. JPG is commonly suited to photographs, PNG is useful when transparency or lossless graphics are important, and WebP can provide a strong balance between quality and file size.

How to Compress an Image

  1. Choose or drag an image into the upload area.
  2. Select JPG, PNG or WebP.
  3. Adjust the quality slider.
  4. Optionally reduce the maximum width.
  5. Click Compress Image.
  6. Compare Original and Compressed, then download the result.

JPG vs PNG vs WebP

JPG: Best suited for photographs and general images where a smaller file size is important.

PNG: Useful for graphics, screenshots and images where transparency or lossless quality matters.

WebP: A modern image format that can provide a good balance between visual quality and file size.

How Much Image Quality Should You Use?

A quality setting between 70% and 85% is often a good starting point for photographs. Higher quality generally preserves more detail but creates a larger file. Lower quality can create a smaller file but may introduce visible compression artifacts.

Frequently Asked Questions

Is Gadrex Image Compressor free?
Yes. Gadrex Image Compressor is a free browser-based tool for compressing JPG, PNG and WebP images.

Can I compress JPG images online?
Yes. Upload your JPG image, choose the quality and click Compress Image.

Can I compress PNG images?
Yes. PNG images are supported, including images that need transparency.

Can I compress WebP images?
Yes. You can select WebP as the output format.

Are my images uploaded to Gadrex?
No. Image compression is performed locally in your browser.

What quality should I use?
For many photographs, 70–85% is a good starting range. Higher quality generally produces a larger file.