What is Upscaler.online?
Upscaler.online is a free web platform that gives you browser-based access to the best open-source AI image upscaling models — specifically Real-ESRGAN and Clarity Upscaler. We connect to the Replicate API to run these models in the cloud, so you don't need to install anything, configure GPUs, or understand any AI concepts.
Why did we build it?
The best open-source upscaling models exist and are free — but running them requires a GPU, Python environment, and technical setup that most people don't have. Upscaler.online removes that friction entirely. Upload your image, pick a scale, click Upscale. That's it.
What can I do here?
- 2×, 4×, 8× upscaling with Real-ESRGAN or Clarity Upscaler
- Face enhancement via GFPGAN for portrait restoration
- Before/after comparison slider to inspect every pixel
- 10 free upscales per day — no account, no credit card