# Upscayl Open Source AI Image Upscaler

> Upscayl is a free, open-source AI image upscaler for Linux, macOS, and Windows. It uses Real-ESRGAN models with Vulkan GPU acceleration to enhance low-resolution images, supporting batch processing, custom models, and multiple output formats.

- Skill: `agentskillexchange/upscayl-open-source-ai-image-upscaler` (Agent Skill)
- Install (CLI): `npx skillmds@latest add agentskillexchange/upscayl-open-source-ai-image-upscaler`
- Raw SKILL.md: https://api.skillmd.com/api/skills/agentskillexchange/upscayl-open-source-ai-image-upscaler/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: agentskillexchange (https://skillmd.com/u/agentskillexchange)
- Updated: 2026-09-08
- Page: https://skillmd.com/skills/agentskillexchange/upscayl-open-source-ai-image-upscaler

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# Upscayl Open Source AI Image Upscaler

Upscayl is a free, open-source AI image upscaler for Linux, macOS, and Windows. It uses Real-ESRGAN models with Vulkan GPU acceleration to enhance low-resolution images, supporting batch processing, custom models, and multiple output formats.

## Installation

Use the upstream install or setup path that matches your environment:
- brew install --cask upscayl
- git clone https://github.com/upscayl/upscayl
- npm install
- npm run start

Requirements and caveats from upstream:
- I recommend using Volta: https://volta.sh for installing Node.js.
- Download and install volta, then do: volta install node.

Basic usage or getting-started notes:
- Right Click AppImage -> Go to Permissions tab -> Check 'allow file to execute' and then double click the file to run Upscayl.
- If you get a SmartScreen warning - click 'More Info' and then 'Run Anyway' OR press 'YES' on the unverified publisher dialog.
- # RUN THE DEVELOPMENT SERVER LOCALLY

- Source: https://github.com/upscayl/upscayl
- Extracted from upstream docs: https://raw.githubusercontent.com/upscayl/upscayl/HEAD/README.md

## Source

- [Agent Skill Exchange](https://agentskillexchange.com/skills/upscayl-open-source-ai-image-upscaler/)