Image Compressor & Format Converter
Pure browser-side Canvas processing — smart compression with JPG / PNG / WebP format conversion
Upload image → adjust settings → real-time compression preview → save in one click
Click to upload or drag and drop an image here
Supports JPG / PNG / WebP / BMP / GIF — output formats: JPG / PNG / WebP
🔒 100% browser-local processing. Images never leave your device. Fast and private.
Compression Settings
80
High compression / small file
High quality / large file
100%
Scale: 100%
Real-time Preview Comparison
Original
Format: —
Dimensions: —
Original Size: —
Compressed
Format: —
Dimensions: —
Compressed Size: —
Why Compress Images?
- Faster Websites — compressed images can be 50%-90% smaller, dramatically improving page load speed and SEO.
- Flexible Format Conversion — JPG for photos, PNG for transparency, WebP for the best of both worlds.
- 100% Private & Secure — pure browser-side Canvas processing. Images never leave your device.
How It Works
Uses the HTML5 Canvas API to re-encode images into the target format with adjustable quality. The canvas.toBlob() method performs re-encoding entirely in local browser memory — no network requests involved. For JPG and WebP, the Quality slider controls lossy compression rate (mapped from 1-100 to 0-1). PNG is lossless; the quality parameter has no effect.