What is this tool
The AI Image Upscaler runs Real-ESRGAN x4plus entirely in your browser. Upload a PNG, JPEG or WebP image and get a 4× larger version with improved detail. Files never leave your device. Best for old photos, low-res screenshots and small assets. Max input edge 2048px; larger images are processed in 128×128 tiles and stitched.
Use Cases
- 1.Old photos: Upscale scanned or phone photos 4× for printing or sharing.
- 2.Screenshots: Enlarge small blurry captures so text and UI elements read better.
- 3.Design assets: Blow up small logos, icons or illustrations for higher-DPI layouts.
- 4.E-commerce thumbnails: Improve compressed product previews (not a substitute for true high-res photography).
- 5.Pipeline workflow: Upscale → crop → compress; chain steps in WoDeTool pipelines.
Why does this tool exist
Desktop upscaling usually means Photoshop or paid plugins. Many online AI enhancers upload your files to third-party servers — privacy concerns plus usage limits. This tool runs Real-ESRGAN via ONNX Runtime Web locally: ~64MB model download once, then IndexedDB cache. Tile-based inference keeps large images workable on everyday hardware without requiring a GPU.