Free AI Image Upscaler
Upscale images 2×, 3× or 4× with ESRGAN models running in your browser.
Pick Fast, Balanced or Best; the largest model is about 29 MB. Inputs over 2048 px are scaled down first, and nothing is uploaded.
- Runs locally
- Add images
- Choose the settings
- Download
- Free
- No sign-up
- Runs in your browser
- No watermark
ESRGAN-slim 2× is 0.9 MB. WebGL is tried first, then WASM, then CPU. Patches are 64 px with 2 px of mirrored padding. It downloads in this browser when you run, and the picture is not uploaded. Edges longer than 512 px are reduced first.
Files are processed in this browser tab. This tool does not ask for an account or upload your file.
Use cases
Where it helps
Private files
Work on a photo, video or document before it is ready to share.
Quick fixes
Convert, check or tidy a file without installing software.
The next step
Download the result for print, publishing, or a PoYo generator.
Three steps
How to use Free AI Image Upscaler
Add images
Drop one image or a batch. They stay in this tab.
Choose the settings
Pick the format, size, quality or text this tool offers.
Download
Save each result to your device.
Features
What this tool includes
Runs locally
Files are processed in this browser tab. This tool does not ask for an account or upload your file.
Add images
Drop one image or a batch. They stay in this tab.
Choose the settings
Pick the format, size, quality or text this tool offers.
Download
Save each result to your device.
PoYo
Need a new image or video?
These free tools work on files you already have. To create an image, video or audio from a description, open a PoYo generator.
Free AI Image Upscaler FAQ
Do I need an account?
No. Open the page and use it.
Is my file uploaded?
No. Files are processed in this browser tab. This tool does not ask for an account or upload your file.
Is there a watermark?
No. PoYo adds nothing to the download.
Why does it pause the first time?
Some tools download an encoder or AI model on the first run. That download contains none of your file, and later runs are usually faster.
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Upscale images 2×, 3× or 4× with ESRGAN models running in your browser. Pick Fast, Balanced or Best; the largest model is about 29 MB. Inputs over 2048 px are scaled down first, and nothing is uploaded.