
Image generation
clarity-upscaler
Upscales images while inventing believable detail
★ 5.1k
March 2025
AGPL-3.0
Image generation
What it does
Enlarges photos and illustrations while adding plausible edges and texture - an open alternative to paid services like Magnific. Note that this repository is a cog implementation aimed at developers; the author explicitly suggests easier routes, namely ComfyUI or A1111 for the free path, or their own hosted app and API if you would rather pay for convenience. Some features, such as Flux-based upscaling, are only available in the paid app.
Summary based on the project's own description. The Japanese page has a fuller beginner guide: setup difficulty, what to prepare, and a step-by-step start.
Screenshots & visuals

Before you start
- Setup difficultyFor advanced users
- Command lineRequired
- API keyRequired
- Sends data onlineYes
Judged automatically from the project's own metadata. Always confirm on the official page.
clarity-upscaler FAQ
- Is clarity-upscaler free?
- clarity-upscaler itself is free, but it needs an API key for an external AI service. That service charges separately, though some have a free tier.
- Do I need to install anything or write code to use clarity-upscaler?
- It needs the command line. If you are not comfortable typing commands, expect to get stuck during setup.
- Does clarity-upscaler work on a phone?
- No. It needs a computer.
- Can I use clarity-upscaler commercially?
- The licence is AGPL-3.0. Using it commercially is fine, but if you distribute something built on it you may be required to release that under the same licence. Keep it internal, or check before distributing.
How it compares
The conditions that decide whether you can actually use it, side by side.
| Tool | Command line | API key | Sends data out | Phone | Commercial use |
|---|---|---|---|---|---|
| clarity-upscaler (this page) | Required | Required | Yes | No | Yes |
| finegrain-image-enhancer | Not needed | Not needed | Yes | No | Not verified |
| Tile-Upscaler | Not needed | Not needed | Yes | No | Not verified |
| Image-Upscaling-Playground | Not needed | Not needed | Yes | Yes | Not verified |
"Sends data out" means your input is uploaded to someone's server. Pick "No" when the material cannot leave your organisation.