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[GH-ISSUE #1193] Change default port #334

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opened 2026-10-31 22:11:43 +00:00 by bsakaguchi · 2 comments

bsakaguchi commented

2026-10-31 22:11:43 +00:00

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Originally created by @dsolito on GitHub (Jun 9, 2025).
Original GitHub issue: https://github.com/Comfy-Org/desktop/issues/1193

Hi,

I have installed the app and run it without problem on Mac OS until I installed another service on the port 8000.
I need to keep this service on 8000 so I try to launch the comfy App again on another port.
Is it possible to do it ?

Thank you

┆Issue is synchronized with this Notion page by Unito

Originally created by @dsolito on GitHub (Jun 9, 2025). Original GitHub issue: https://github.com/Comfy-Org/desktop/issues/1193 Hi, I have installed the app and run it without problem on Mac OS until I installed another service on the port 8000. I need to keep this service on 8000 so I try to launch the comfy App again on another port. Is it possible to do it ? Thank you ┆Issue is synchronized with this [Notion page](https://www.notion.so/Issue-1193-Change-defaut-port-20d6d73d365081d48c52f7908f49a00e) by [Unito](https://www.unito.io)

bsakaguchi

2026-10-31 22:11:43 +00:00

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bsakaguchi commented

2026-10-31 22:11:43 +00:00

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@dosubot[bot] commented on GitHub (Jun 9, 2025):

Yes, you can change the default port for the ComfyUI desktop app. There isn’t a setting in the app’s interface, but you have two options:

Set the COMFY_PORT environment variable before launching the app. For example, in Terminal you can run:

COMFY_PORT=9000 open /Applications/ComfyUI.app

Replace 9000 with your desired port.

Edit the comfy.settings.json file (usually found in your user config directory) and add or update the port under "Comfy.Server.LaunchArgs", like:

{
  "Comfy.Server.LaunchArgs": { "port": "9000" }
}

The app will try to use the port you specify, or the next available one if that port is in use. There’s no UI for this, so it’s a manual change.

More technical details can be found in the codebase (constants.ts, comfyDesktopApp.ts).

To reply, just mention @dosu.

Share context across your team and agents. Try Dosu.

@dosubot[bot] commented on GitHub (Jun 9, 2025):  Yes, you can change the default port for the ComfyUI desktop app. There isn’t a setting in the app’s interface, but you have two options: 1. Set the COMFY_PORT environment variable before launching the app. For example, in Terminal you can run: ```bash COMFY_PORT=9000 open /Applications/ComfyUI.app ``` Replace `9000` with your desired port. 2. Edit the `comfy.settings.json` file (usually found in your user config directory) and add or update the port under `"Comfy.Server.LaunchArgs"`, like: ```json { "Comfy.Server.LaunchArgs": { "port": "9000" } } ``` The app will try to use the port you specify, or the next available one if that port is in use. There’s no UI for this, so it’s a manual change. More technical details can be found in the codebase ([constants.ts](https://github.com/Comfy-Org/desktop/blob/f07ea55359321d091d4e61237b431b3c2006547a/src/constants.ts), [comfyDesktopApp.ts](https://github.com/Comfy-Org/desktop/blob/f07ea55359321d091d4e61237b431b3c2006547a/src/main-process/comfyDesktopApp.ts)).  *To reply, just mention [@dosu](https://go.dosu.dev/dosubot?utm_source=github&utm_medium=bot-comment&utm_campaign=github-comment-footer-20260415&utm_content=reply-with-mention&utm_term=Comfy-Org%2Fdesktop).* --- Share context across your team and agents. Try [Dosu](https://dosu.dev?utm_source=github&utm_medium=bot-comment&utm_campaign=github-comment-footer-20260415&utm_content=knowledge-infrastructure-tagline&utm_term=Comfy-Org%2Fdesktop). 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bsakaguchi commented

2026-10-31 22:11:43 +00:00

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@dsolito commented on GitHub (Jun 9, 2025):

Thank you! Resolved with the comfy.settings.json modification

@dsolito commented on GitHub (Jun 9, 2025): Thank you! Resolved with the comfy.settings.json modification

bsakaguchi referenced this issue

2026-10-31 22:17:01 +00:00

[PR #334] [MERGED] Install nightly pytorch for macos. #797

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