Image Compressor

Compress images online for free. Reduce file size by up to 90% with adjustable quality. No upload — everything runs in your browser.

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Drop an image here or click to upload

PNG, JPG, WebP, GIF — any size

What Is the Image Compressor?

The Image Compressor reduces your image file size directly in your browser. Upload any image, choose your quality level and output format, and download a smaller version. No server upload, no signup, completely private.

How to Compress an Image

  • Upload an image by clicking the upload area or dragging and dropping.
  • Adjust the quality slider — lower quality means smaller file size.
  • Choose an output format: WebP for best compression, JPEG for compatibility, PNG for lossless.
  • See the file size reduction in real time.
  • Download your compressed image.

Tips for Best Results

  • WebP at 80% quality gives excellent results for most photos — often 70-80% smaller than the original.
  • For web use, quality between 70-85% is the sweet spot — visually identical but much smaller.
  • PNG is lossless, so the quality slider doesn't apply. Use PNG only when you need transparency.
  • Converting large PNGs to WebP or JPEG can reduce size by 90% or more.

Frequently Asked Questions

How does the image compressor work?+
The tool re-encodes your image in the browser using the Canvas API with adjustable quality settings. Lower quality means smaller file size. For JPEG and WebP formats, quality directly controls compression. PNG uses lossless compression so quality doesn't apply — but converting a PNG to WebP or JPEG can dramatically reduce size.
Is my image uploaded to a server?+
No. All compression happens entirely in your browser using the HTML5 Canvas API. Your image never leaves your device, keeping your files completely private.
What image formats are supported?+
You can upload any image your browser supports — PNG, JPEG, WebP, GIF, BMP, TIFF, and more. You can export as JPEG, WebP, or PNG. WebP typically gives the best compression with the least quality loss.
What's the best format for compression?+
WebP gives the best file size to quality ratio in most cases. JPEG is best for photos when you need maximum compatibility. PNG should be used when you need transparency or lossless quality.
How much can I reduce the file size?+
It depends on the original image and settings. Photos can typically be reduced by 60-90% with minimal visible quality loss. At quality 80%, most images look virtually identical to the original while being significantly smaller.

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