Image Compressor
Compress JPG, PNG, and WebP images while maintaining optimal visual clarity and custom quality control.
Files stay private. Processed 100% locally in your browser.
Free service for documents up to 25 MB.
How To Compress Image Online For Free
Compress JPG, PNG, and WebP images while maintaining optimal visual clarity and custom quality control. Processed 100% locally and privately in your browser with zero server uploads and zero ads.
1. Upload Image(s)
Drag and drop your JPG, PNG, or WebP photos into the workspace.
2. Select Compression Level
Choose Recommended, High Compression, or set custom quality percentage.
3. Download Compressed Images
Inspect the instant file size savings and download your lightweight photos.
Why Choose DocTool Image Compressor?
Built for speed, client-side privacy, and flawless document output with zero ads and zero watermarks.
100% Client-Side Private
Files process directly in your browser using WebAssembly. Your documents never touch external servers or cloud databases.
Zero Watermark Added
Export clean, professional, publication-ready files without any stamps, logos, or forced branding.
Instant Processing with Zero Queue
Instant optimization and editing with zero queue times, zero server latency, and batch processing support.
100% Free Forever with Zero Popups
No account registration, no credit card, and zero intrusive ads. Enjoy uninterrupted productivity on any device.
Frequently Asked Questions
Everything you need to know about using Image Compressor on DocTool.
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