How to upscale an image without it looking blurry
Why 2× and 4× AI upscaling beats a simple stretch — and when to compress afterward.
Dragging a 400-pixel photo to 1600 pixels in a normal editor just stretches pixels. An image upscaler reconstructs extra detail so edges stay cleaner than a bicubic enlarge.
2× vs 4×
On Filvo, upload a JPG, PNG, or WebP (up to 20 MB), pick 2× or 4×, and compare with the slider. 2× is the safer default. 4× helps tiny sources but will invent detail — it cannot recover a face that was 40 pixels wide.
Dedicated landings exist if you already know you want 2×, 4×, a product zoom, or an old scan. Very tiny or heavily compressed sources still have limits: JPEG blockiness gets larger along with the subject.
Upscale is not resize-to-exact-pixels
Use the editor when you need a specific width and height (a 1080×1080 square, an A4, a story). After you enlarge, compress for the web so the file does not balloon — a 4× PNG from a phone photo is often too heavy to ship raw.
Steps
- Upload. JPG, PNG, or WebP up to 20 MB.
- Pick 2× or 4×. Compare with the slider before you download.
- Compress if needed. Enlarge first, then shrink the file for the web.
Ready to try it? Upscale an image free.