Native localization support (i18n)

TL;DR

ComfyUI now includes built-in translation support, replacing the need for third-party translation extensions. Select your language in Comfy > Locale > Language to translate the interface into English, Chinese (Simplified), Russian, Japanese, or Korean. This native implementation offers better performance, reliability, and maintainability compared to previous solutions. More languages and custom node translations are coming soon.

Limitations of Third-Party Translation

Previously, users who needed non-English translations for ComfyUI had to rely on the third-party extension AIGODLIKE-ComfyUI-Translation. While this extension served an important purpose, several limitations prompted the development of native translation support.

Performance Issues

The AIGODLIKE extension performs translation checks on every UI update, leading to significant performance degradation. Users have reported severe lag when:

• Searching for nodes

• Opening settings

• Adding new nodes

• Performing general UI interactions

Multiple issue reports (#310, #303) document these performance concerns, even when other extensions are disabled.

Compatibility Challenges

The extension relies on specific DOM structures for translation, making it vulnerable to frontend changes. This dependency has:

• Limited our ability to remove legacy DOM structures

• Caused translation failures after UI updates

• Required manual fixes for compatibility issues (see ComfyUI#5416)

Other Limitations

• Delayed updates for new node definitions

• Translation persistence issues in exported workflows

• Lack of immediate synchronization with ComfyUI updates

Native Translation Solution

Our new native translation system addresses these limitations through:

• Integration with vue-i18n for efficient locale message display

• Direct UI integration without DOM matching

• Automatic detection of new and modified node definitions

• Proper handling of translation persistence

Currently Supported Languages

• English

• Chinese (Simplified)

• Russian

• Japanese

• Korean

Translation Coverage

• Settings dialog

• Core settings

• Keybindings panel

• Server config panel (Desktop-Only)

• Litegraph

• Node name (Supports search with translated language)

  • Node widget name

  • Node input / output name

• Menu UI

• Buttons

  • Sidebar tabs

  • Bottom panels

How to Enable

1. Open the settings dialog

2. Navigate to Comfy > Locale > Language

3. Select your preferred language

What's Next

Custom Node Translation Support

We will be implementing comprehensive translation support for custom nodes:

• Automatic translation generation for nodes hosted in the ComfyUI registry

• Direct submission of translation PRs to custom node repositories

• Implementation of a backend mechanism to load custom node translations

Expanded Language Support

We plan to add support for additional languages, including:

• Spanish

• French

• German

• And more to come

Community Contributions

Thanks to shinshin86, vanja-san, and ltdrdata for adding Japanese, Russian and Korean translations.

If you notice any translation issues or would like to improve existing translations:

1. Visit our locales directory at ComfyUI_frontend/src/locales

2. Make your corrections or additions

3. Submit a Pull Request with your changes

We welcome community involvement in making ComfyUI more accessible to users worldwide.