What is the maximum file size?

2 MB (the "10 MB" claim is not correct).

Can I upscale multiple images at once?

Yes, you can upscale multiple images at once. When the process is complete, you can download the results as a ZIP file.

Which image formats can I upload?

You can upload PNG, JPG and WebP images. The maximum limit per file is 2 MB.

How long does the upscaling process take?

The process takes approximately 30-60 seconds per image. 4x upscaling takes longer than 2x and produces a larger file.

Is the size of the upscaled image subject to an upper limit?

Yes, the upscaled output is targeted to be at most 4096 pixels.

AI Image Upscaler — Free & Sharp

Drop image(s)

max 2 MB per file · PNG/JPG/WebP · sharpened upscaling, not AI (CPU, 100% free, ~30-60s per image) · Max 2MB

Scale

2x and 4x both run the same Lanczos + sharpening engine (not AI super-resolution). 4x takes longer and produces a larger file.

Auto-deleted in 7 days

256-bit SSL

Support

Your files are encrypted with SSL and automatically deleted from our servers 7 days after processing.

📖 How to Use

Upload image

Drag JPG/PNG/WebP/HEIC files.

Pick settings

Format / size / quality / background.

Convert

Click to start.

Download

Get the result; batches arrive as ZIP.

Frequently asked questions

No. The interface itself also clearly states: "sharpened upscaling, NOT artificial intelligence (CPU, 100% free)". The tool uses the classic Lanczos interpolation algorithm; super-resolution/AI technology is not used.

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Image Upscale (2x/4x)