Image Compressor

Compress and optimize images online. Reduce file size with adjustable quality, resize, and format conversion.

Drag & drop an image here, or

How to Use the Image Compressor

1

Upload Your Image

Drag and drop an image into the upload area or click Browse Files to select one from your device. Supports JPEG, PNG, WebP, and other common formats.

2

Adjust Compression Settings

Use the quality slider (10-100%) to control compression level. Set a maximum width to resize large images, and choose the output format (JPEG, WebP, or PNG).

3

Download the Compressed Image

Preview the before and after comparison, check the file size savings, and click Download to save the optimized image.

Features

Compress JPEG, PNG, and WebP images with adjustable quality
Resize images by setting a maximum width while preserving aspect ratio
Convert between JPEG, WebP, and PNG formats
Real-time before/after comparison with file size display
Percentage savings indicator showing exactly how much you saved
Drag-and-drop upload for quick workflow
Works entirely in your browser — no images are uploaded to any server
Free to use with no sign-up required

Frequently Asked Questions

No. All compression happens entirely in your browser using the HTML5 Canvas API. Your images never leave your device — nothing is sent to any server.

You can upload any image format your browser supports (JPEG, PNG, WebP, GIF, BMP, etc.). For output, you can choose between JPEG, WebP, and PNG formats.

For most use cases, 70-80% quality offers an excellent balance between file size and visual quality. For photos where quality matters, use 85-95%. For web thumbnails, 50-60% works well.

Only if you set a Max Width smaller than the original image width. The compressor will scale the image down proportionally. Otherwise, the dimensions stay the same — only the file size is reduced.

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