Free · No Signup · Privacy-First

Professional Image
Compressor

Intelligently compress images with smart algorithms, batch processing, format conversion, and resize — all in your browser, 100% private.

Smart Compression Batch Processing Format Conversion Before/After Compare
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Drop your images here
or click to browse from your device — batch upload supported
Supports JPG, PNG, WebP, GIF, BMP • Max 50MB per file
0 images in queue
📊 Compression Summary
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🔍 Before / After Comparison
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Professional-Grade Image Compression

Advanced algorithms for optimal file size reduction with quality preservation.

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Smart Compression

Intelligent algorithm auto-selects the optimal quality/size balance for each image.

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Batch Processing

Upload and compress multiple images at once. Download individually or all together.

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Format Conversion

Convert between JPEG, PNG, and WebP formats during compression.

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Resize Options

Scale by percentage or set custom dimensions to reduce file size further.

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Before/After Compare

Interactive slider comparison to verify visual quality after compression.

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100% Private

All processing happens locally in your browser. Images never leave your device.

Frequently Asked Questions

Intelligent mode uses a smart algorithm that tests multiple quality levels to find the best balance between file size and visual quality. It targets at least 40% size reduction while maintaining near-perceptual quality.
Lossy compression reduces file size by permanently removing some image data, resulting in smaller files. Lossless compression reduces file size without any quality loss, though savings are typically smaller. Use lossy for photos and lossless for graphics/screenshots.
Absolutely! All compression is performed entirely in your browser using the Canvas API. Your images are never uploaded to any server. Once you close the tab, all data is gone.
You can add as many images as you need. Processing is done sequentially to prevent memory issues. Each file can be up to 50MB. Supported formats include JPG, PNG, WebP, GIF, and BMP.
You can output to JPEG (best for photos), PNG (best for graphics with transparency), or WebP (modern format with excellent compression). You can also keep the original format with "Auto" mode.