How to convert Image to 2× or 4× larger image – AI Image Upscaler online
- Upload – click “Choose files” or drag your Image file into the box above (.jpg, .jpeg, .png, .webp, .heic, .heif, .bmp).
- Adjust settings – optionally choose image quality.
- Convert – press the button; Kitbly processes your file on a secure server in seconds.
- Download – save your 2× or 4× larger image. The file is deleted from our servers automatically after 1 hour.
About AI Image Upscaler
Make small or blurry pictures bigger without the usual blockiness. Kitbly's AI upscaler uses a compact super-resolution model to rebuild edges and texture while enlarging 2× or 4× – ideal for old photos, product shots, thumbnails, logos and screenshots you need to print. Your photo is processed once on our server and deleted right away, never used for training.
Frequently asked questions
How large can the image be?
Any size can be uploaded. To keep the free service fast, inputs are first reduced to about 0.8 megapixels for 2× (e.g. 1030×775) and 0.5 megapixels for 4× – the result is then 3.2 or 8 megapixels.
Will it fix any blurry photo?
It sharpens details and removes JPEG blockiness very well, but it can't recover a face from a few pixels. Results are best from 2×.
Is there a watermark?
Never.
Is AI Image Upscaler free?
Yes – completely free, with no account, no daily limit and no watermark.
Are my files safe?
Files are sent over an encrypted HTTPS connection, processed automatically by our servers, never shared and permanently deleted after 1 hour. Nobody looks at your documents.
Do I need to install software or sign up?
No. It works in any browser on Windows, Mac, iPhone and Android. No account needed.
Is there a watermark?
Never. Your converted files are clean, with no watermark or branding.