Kostenloser Online Bildkonverter
Konvertiere Bilder zwischen PNG, JPEG, WebP und AVIF. Schnell, kostenlos und datenschutzfreundlich.
BILDER HIER ABLEGEN
oder klicken, um Dateien auszuwahlen
Max 5MB pro Datei - Bis zu 10 Bilder pro Upload
All processing local + server-side transient, no files stored.
How To Convert Images Online
Inject Source Files
Drag any standard graphics file (JPG, PNG, WebP) directly into the client processor. The engine immediately decodes the pixel grid securely on your device.
Target Desired Output
Select modern rendering standards like AVIF or WebP to drastically cut weight, or stick with solid PNGs for flat colors. Tweak the quality scaler to balance lossy encoding.
Save Converted Assets
Export your newly mapped assets instantly. Perform bulk cross-conversions and pack all the new extensions down into a neat ZIP archive.
TIP: Use WebP for modern websites (30% smaller than PNG/JPG). AVIF offers the best compression but limited browser support. PNG for transparency, JPEG for photos.
Key Features
Universal Mapping
Translate pixels across JPEG, PNG, WebP, and AVIF output barriers instantly.
Client Execution
Conversion triggers natively in background threads inside your device.
Encrypted Processing
No outbound storage APIs. WebAssembly runs conversions with complete privacy.
Micro-Management
Manually control rendering weight or switch to lossless algorithms precisely.
Archive Ready
Batch hundreds of assets into a single ZIP library for rapid local downloading.
Lighthouse Ready
Deliver Next-Gen image formats directly into your picture tags cleanly.
Quality vs Size Guide
Interactive demo: See how quality affects file size in real-time
Sample: 2MB Photo
Quality Recommendations
Professional printing • Archival • Large files
Portfolio • Social media • Good balance
Websites • Fast loading • Recommended
Thumbnails • Previews • Visible quality loss
Frequently Asked Questions
Du kannst in WebP, AVIF, PNG und JPEG konvertieren und auch mehrere Zielformate gleichzeitig auswahlen.
Ja. Die Verarbeitung lauft im Browser und Dateien werden nicht dauerhaft auf einem Server gespeichert.
Ja. Lade mehrere Bilder hoch und lade einzelne Ergebnisse oder eine ZIP-Datei herunter.
Bei verlustbehafteten Formaten wie JPEG, WebP und AVIF hangt es von der Qualitatseinstellung ab. PNG bleibt verlustfrei.