Best Tools · Bild

Beste Kostenlose Bildkompressor-Tools Online 2026

Den richtigen Bildkompressor zu finden, kann einen großen Unterschied für Ihre Website-Geschwindigkeit und Speicher machen. Wir haben die Top-Bildkompressions-Tools getestet und verglichen.

#1

Bild Kompressor

Web developers and designers optimizing images

Bilder online kostenlos komprimieren — reduziere JPG, PNG und WebP um bis zu 80% bei minimalem Qualitätsverlust. Intelligente Optimierung, Stapelverarbeitung, Vorher/Nachher-Vorschau.

✅ Pros
  • Up to 80% reduction
  • Smart lossy/lossless
  • Batch support
  • Before/after preview
⚠️ Cons
  • None significant
Use Free →
#2

Stapel Bild Prozessor

Bulk image processing workflows

Batch compress, convert format, or resize multiple images at once.

✅ Pros
  • Process hundreds at once
  • Multiple operations
  • Format conversion
⚠️ Cons
  • None significant
Use Free →
#3

Bild Formatieren Konverter

Converting between image formats

Bildformate online kostenlos konvertieren — JPG, PNG, WebP, AVIF, GIF, SVG, BMP, TIFF, ICO und mehr. Hohe Qualität, Stapelverarbeitung, 100% im Browser.

✅ Pros
  • 10+ formats
  • Batch convert
  • High quality
⚠️ Cons
  • None significant
Use Free →
#4

Bild Skalierer

Resizing images for web and social media

Bilder online kostenlos verkleinern. Ändere Abmessungen nach Pixel oder Prozent, behalte Seitenverhältnis, schneide auf exakte Größe zu. Stapelverarbeitung verfügbar.

✅ Pros
  • Preset sizes
  • Aspect ratio lock
  • Batch resize
⚠️ Cons
  • None significant
Use Free →
#5

Bild Wasserzeichner

Protecting images with watermarks

Add text or image watermarks to protect your images. Free online tool for branding photos directly in your browser.

✅ Pros
  • Text and image watermarks
  • Custom position
  • Batch support
⚠️ Cons
  • None significant
Use Free →
#6

Favicon Generator

Creating favicons for websites

Generate favicon icons from images in multiple sizes. Free online favicon generator for websites and web apps.

✅ Pros
  • Multi-size output
  • ICO and PNG
  • Preview
⚠️ Cons
  • None significant
Use Free →
#7

Bild Zuschneider

Cropping images to specific sizes

Crop images to specified dimensions and aspect ratios. Free online image cropper for thumbnails and social media.

✅ Pros
  • Preset aspect ratios
  • Precise control
  • Free
⚠️ Cons
  • None significant
Use Free →
#8

Bild Drehen

Rotating and flipping images

Rotate images to any angle including 90, 180, and 270 degrees. Free online image rotator for fixing photo orientation.

✅ Pros
  • 90° and custom angles
  • Batch support
  • Fast
⚠️ Cons
  • None significant
Use Free →
#9

Bild Unschärfe

Blurring sensitive parts of images

Apply blur effects to images for privacy or artistic purposes. Free online image blur tool for faces and backgrounds in your browser.

✅ Pros
  • Adjustable blur
  • Multiple effects
  • Real-time preview
⚠️ Cons
  • None significant
Use Free →
#10

QR Code Generator

Generating QR codes for marketing

QR-Codes online kostenlos generieren. Erstelle individuelle QR-Codes für URLs, Text, WiFi, Email, vCard und mehr. Passe Farben an, füge Logos hinzu, lade PNG oder SVG herunter.

✅ Pros
  • Multiple data types
  • Custom colors
  • Logo support
⚠️ Cons
  • None significant
Use Free →

Frequently Asked Questions

Are these image compressors free?

Yes — every compressor listed is free to use with no limit on the number of images you process.

Will compression reduce my image quality?

Most tools offer adjustable quality. At 70–80% quality, images look nearly identical while shrinking 50–80% in file size.

Are my images uploaded anywhere?

No. Compression runs locally in your browser using Canvas and WebAssembly — your images never leave your device.

How to Choose the Best Tool

When choosing a tool, consider your specific needs: file size limits, processing speed, privacy guarantees, and batch processing capabilities. All recommended tools have been tested by our team.