Image
Upscayl
🆙 Upscayl - #1 Free and Open Source AI Image Upscaler for Linux, MacOS and Windows
★ 50.1k starsAGPL-3.0
View guide →Enhance images in JavaScript — upscale, denoise, deblur and dehaze with AI
UpscalerJS is an open-source image project by thekevinscott (thekevinscott/UpscalerJS on GitHub). It has 901 GitHub stars and 84 forks, is released under the MIT license, and was last updated on GitHub on 4 October 2026.
Add UpscalerJS to a browser or Node project via npm.
Choose an enhancement model such as ESRGAN-family weights.
Feed a canvas, URL or image element into the API.
Display or save the enhanced, higher-resolution output.
Same API works client-side and server-side.
Upscale low-res images with ESRGAN models.
Clean up grainy or soft photos.
Specialized restoration for tough conditions.
Recover detail from underexposed shots.
Free for commercial products with attribution.
Download the source and move into the project folder.
git clone https://github.com/thekevinscott/UpscalerJS.git
cd UpscalerJSEvery project documents its own setup; start with install requirements.
cat README.md | head -60Follow the project's launch command — Docker, pip, npm, or a binary release.
# see README for the exact launch commandIt is an open-source project at thekevinscott/UpscalerJS with 162 forks. Check the repo's contributors and recent commits to see how active maintenance is.
MIT licensed — commercial use allowed with attribution.
It runs on CPU in the browser or Node, though a GPU speeds things up.
Browser for privacy and instant demos; Node for batch processing.
AI enhancement models in the ESRGAN family — see the docs for the model list.
🆙 Upscayl - #1 Free and Open Source AI Image Upscaler for Linux, MacOS and Windows
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🆙 Upscayl - #1 Free and Open Source AI Image Upscaler for Linux, MacOS and Windows
Free and open — grab the source, star the repo, and start creating.