Image Compress – Free Online Image Compression Tool

Compress JPG, PNG, WebP, and GIF images. Drag to compare before/after. Uses picDone compression engine. All local processing.

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Features

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Multiple Formats

Compress JPG, PNG, WebP, and GIF images. Automatic format optimization.

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Before/After Compare

Drag the comparison slider to see original vs compressed side by side.

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Size Stats

Shows original size, compressed size, and compression ratio percentage.

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Privacy First

Uses picDone compression engine via postMessage. Images processed locally.

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Drag & Drop

Drop images directly or click to browse and upload.

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Copy or Download

Copy compressed image to clipboard or download to your device.

How to Use

1

Upload Image

Drag & drop or click to upload your image file.

2

Automatic Compression

picDone analyzes and compresses your image automatically for optimal size/quality.

3

Compare Results

Drag the comparison slider to verify quality is acceptable.

4

Save

Download the compressed image or copy to clipboard.

Frequently Asked Questions

How much can images be compressed?
Compression ratios vary by image content. Photos typically compress to 30-70% of original size with minimal visible quality loss. Simple graphics can achieve even higher ratios.
What compression does picDone use?
picDone uses intelligent round-trip compression that maintains visual quality while reducing file size. It automatically selects optimal encoding settings.
Are images uploaded to a server?
The compression is done by picDone's engine via postMessage API. Images are processed in a sandboxed context and don't go through a traditional server upload.
What formats are best for compression?
JPG is best for photos (lossy). PNG is best for graphics with transparency (lossless). WebP offers the best compression for both. GIF is for animations only.

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