Bildgröße ändern — Kostenlos & Privat
Ändern Sie die Größe von Bildern auf beliebige Abmessungen. Export als PNG, JPG oder WebP — 100% im Browser.
Drop an image to resize
Supports JPG, PNG, WebP, BMP, GIF
🔒100% Private — Your files never leave your device. All processing runs locally in your browser.
How It Works
Upload an image and choose your resize method — enter exact pixel dimensions, a percentage scale, or select from social media presets like Instagram, YouTube, or Facebook.
The tool uses the browser's native Canvas API with high-quality bicubic interpolation to ensure sharp, clean results. Export as PNG (lossless), JPG (compressed), or WebP (modern) with adjustable quality.
Features
- ✓Three resize modes: pixel dimensions, percentage, and presets
- ✓Social media presets: Instagram, Facebook, Twitter, YouTube, LinkedIn
- ✓Aspect ratio lock to prevent distortion
- ✓Output format choice: PNG, JPG, or WebP
- ✓Quality slider for JPG and WebP exports
- ✓Real-time preview of the resized image
Frequently Asked Questions
Downscaling slightly reduces detail, but the tool uses high-quality interpolation. For lossless output, use PNG format.