Image Compressor
Compress images in your browser — adjust quality, choose output format, resize, and download. No server upload needed.
Upload Image
Drag & drop an image or
Max 50 MB. All image formats supported. You can also paste (Ctrl+V).
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Everything you need to know
Browser-Based Compression
The Image Compressor processes images entirely in your browser using the HTML5 Canvas API. No files are uploaded to any server — your images stay private on your device. Drag and drop an image or use the file picker to get started.
Flexible Output Formats
Choose between JPEG, WebP, and PNG output formats. WebP offers the best compression ratios for web use. JPEG is universally supported. PNG preserves transparency with lossless compression. Adjust the quality slider from 1% to 100%.
Resize While Compressing
Set maximum width and/or height constraints to resize images proportionally during compression. This is ideal for preparing images for web use, email, or social media where specific dimension limits apply.
Side-by-Side Comparison
After compression, the tool shows original vs compressed images side by side with file sizes and percentage savings. This visual comparison helps you find the right balance between quality and file size.
Related Tools
Optimize SVG files with the SVG Optimizer, generate placeholder images with the Placeholder Image Generator, or create favicons with the Favicon Generator.