100% Free, Private, In-Browser Tool
No uploads. No accounts. No limits. Your files never leave your device.
Compress Image
Optimize and shrink image file sizes without losing visual quality. Select custom quality levels and output formats. Processed 100% locally.
Compression Settings
80%
Lower quality results in smaller files. 75-85% is ideal for web use.
100%
Resize the image dimensions to further decrease file size.
PNG format is lossless; compressing PNG-to-PNG has minor effect. Choose WebP or JPEG for massive savings.
Optimize, resize, and compress your image instantly in your browser. Max file size is 50MB.
Drag & drop your PNG, JPG, or WebP image here, or click to browse
Optimize, resize, and compress your image instantly in your browser
Max file size: 50MB
No image handy?
Visual Comparison
Upload an image to see the visual comparison and compression details.
KNOWLEDGE BASE
Frequently Asked Questions
Everything you need to know about processing files securely in your browser
How does this offline image compressor work?
This compressor uses browser canvas APIs and WebAssembly-based compression libraries to optimize PNG, JPEG, and WebP images. It reduces dimensions or compresses image quality entirely inside your browser.
Will compressing my images affect their quality?
You can adjust the quality slider to find the perfect balance between file size and visual fidelity. WebP and JPEG compression can reduce size significantly with virtually no human-perceptible loss in quality.
Are my photos uploaded to any external servers?
No, your files never leave your computer. The entire compression process is executed locally inside your web browser, ensuring complete privacy.
Which formats are supported for compression?
The tool supports common web formats including PNG, JPEG/JPG, and next-gen WebP images.