免费 · 无需上传 · 即时
Upscale Image
Enlarge images 2×, 4× or 8× using high-quality interpolation. Increase resolution without uploads.
Drop your image here
PNG, JPG, WebP, GIF supported
Upscale Image — 免费且私密
Enlarge images 2×, 4×, or 8× using smooth high-quality interpolation — instantly in your browser. Ideal for printing, high-DPI displays, or when you need a larger version of a small photo.
No cloud AI, no upload. The upscaler runs entirely in your browser, so processing is instant and your images stay completely private.
如何使用 Upscale Image
- Drop your image into the upscaler.
- Select your scale factor: 2×, 4×, or 8×.
- Click Upscale Image.
- Download the enlarged result.
为什么选择我们的 Upscale Image?
- 100% Private — no server, no cloud AI upload
- Smooth interpolation for sharp edges
- Three scale options for flexible output
- Instant processing with no queue
- No limits, no account, no watermarks
- Works offline after page load
常见问题
How do I upscale an image online for free?
Drop your image into the Upscale tool, choose 2×, 4×, or 8× enlargement, and click Upscale. The enlarged image downloads instantly.
What upscale factors are available?
2× (doubles the width and height), 4× (quadruples dimensions), and 8× (eight times the original size). Choose based on your target resolution.
Will the upscaled image look blurry?
The tool uses a high-quality Lanczos/bicubic interpolation algorithm that produces sharper results than basic nearest-neighbour scaling, though upscaling always involves some interpolation. For best results, start with the highest-resolution source available.
When should I use upscaling?
Use upscaling when you need a larger version for printing, when a low-res image needs to fill a larger canvas, or when preparing images for high-DPI displays.
Is my image uploaded to any AI server for upscaling?
No. This is a browser-based interpolation upscaler — everything runs locally in your browser. No upload, no AI cloud service, complete privacy.