Is the AI image upscaler free?

Yes — 100% free, no signup, no usage limits.

Does it save my data?

No. Inputs are processed in your browser and never uploaded to a server.

Can I use it on mobile?

Yes. The interface is fully responsive and works on iOS and Android.

Why do I need a Fal.ai key?

We don't run an AI backend — we'd burn through credits in a day if we did. Bringing your own key means you pay only for what you use (Fal.ai charges fractions of a cent per image), and nothing routes through our servers.

Is my image stored anywhere?

Not by us. Your image is base64-encoded in your browser and sent directly to Fal.ai over HTTPS. Fal.ai's data retention is governed by their own policy.

How big can the input be?

Keep inputs under 10 MB for best results. Very large inputs may exceed Fal.ai's request limits.

WebGenAI

AI Image Upscaler — 2× and 4× Free

Enlarge a photo to 2× or 4× resolution using a state-of-the-art upscaler. Bring your own Fal.ai key — image goes directly from your browser to the model, never to us.

Fal.ai API Key

Your key is stored only in your browser (localStorage) and sent directly to the provider. We have no backend, so it never touches our servers. Get a free Fal.ai key.

Drop an image here, or click below to choose.

How to use

Step 1: Paste a Fal.ai API key (free signup at fal.ai)
Step 2: Drop or upload your image
Step 3: Choose 2× or 4× upscale
Step 4: Click Upscale image
Step 5: Download the result

How AI upscaling works

A diffusion-based upscaler reconstructs missing detail by inferring the high-resolution image that most plausibly produced the low-resolution input. The result is sharper than bicubic resizing on faces, text, and textured surfaces. We pass your image to fal-ai/clarity-upscaler using the API key you provide; we store nothing.

Frequently asked questions

An AI tool that enlarges low-resolution photos by reconstructing missing detail. Works best on faces, text, and textured surfaces.