About

Upscayl is a free, open-source AI image upscaler available as a desktop application for Linux, macOS, and Windows. It uses advanced ESRGAN-based models to upscale images up to 4x resolution with impressive detail enhancement, all processed locally on your GPU. The app supports batch upscaling and multiple AI models, making it an excellent choice for users who want powerful upscaling without cloud dependencies or subscription fees.

Tool Details Free

Pricing Free
Free Plan Yes
Open Source Yes
4.6 1 vote

AI Reviews

🤖
4.6 /5

Upscayl is a standout free, open-source AI image upscaler that runs entirely on your local machine " no cloud processing, no subscriptions, no privacy concerns. Available for Linux, macOS, and Windows, it leverages GPU acceleration to upscale images up to 4x or more using multiple AI models including Real-ESRGAN and ESPCN variants. The desktop interface is clean and intuitive, making it accessible even to non-technical users. Batch processing support is a welcome addition for handling multiple images efficiently.

Strengths include its completely free pricing, offline functionality, strong upscaling quality that rivals paid alternatives, and an active open-source community on GitHub driving regular updates. The variety of built-in models lets users choose the best fit for different image types (photos, illustrations, anime art).

Limitations include occasional longer processing times compared to cloud-based solutions, dependency on a capable GPU for optimal performance, and slightly less refinement in edge cases compared to premium tools like Topaz Gigapixel. Still, for a zero-cost solution, Upscayl delivers exceptional value and is arguably the best free AI upscaler available today.

Category Ratings

AI Image Upscalers
4.6
Feb 15, 2026
AI-Generated Review Generated via Anthropic API. This is an automated evaluation, not a consumer review. Learn more
Upscayl Screenshot

Added: Feb 15, 2026

upscayl.org