Image Compressor (No Upload)
Compress images to reduce file size. Adjust quality and dimensions. All processing happens locally in your browser.
Your Files Stay Private
- No uploads to servers
- Processing happens in your browser
- Files never leave your device
Features
- 📏 Resize dimensions
- 🎚️ Adjustable quality
- 🔄 Format conversion
- 📦 Batch processing
- ⚡ Fast, local processing
- 🔒 100% private
Frequently Asked Questions
How much can I reduce image file size?
Typically 50-80% reduction for photos. Results depend on the original image quality and your chosen settings. You can preview the result and adjust quality to find the perfect balance.
Does compression reduce image quality?
Some quality loss occurs with lossy compression (JPG, WebP). You control the quality level - higher settings preserve more detail. PNG uses lossless compression, so quality is preserved.
What image formats are supported?
We support JPEG/JPG, PNG, and WebP formats. You can also convert between formats during compression for optimal file size.
Can I compress multiple images at once?
Yes! You can upload multiple images and compress them all with the same settings. Download individually or all as a ZIP file.
Are my images uploaded to a server?
No. All compression happens locally in your browser using the Canvas API. Your images never leave your device.
What's the best format for web images?
WebP offers the best compression for web use. JPEG is best for photos with broad browser support. PNG is best for graphics with transparency or text.