HyperMew AI Translator is a high-performance, developer-friendly translation plugin that integrates modern language model routing directly inside your WordPress post edit screens. Powered by the OpenRouter API, it translates your content fields to a variety of target languages within seconds.
Key features include:
* Gutenberg & Classic Editors: Complete sidebar integration in Gutenberg and a custom metabox inside the Classic Editor.
* Granular Field Selection: Translate the Title, Content, Excerpt, or any arbitrary custom fields simultaneously.
* Custom Field Mapping: Define translatable fields dynamically using custom CSS selectors to target specific page elements.
* Performance Caching: Local caching via the WordPress Transients API preserves translations for 24 hours to speed up repeated edits and minimize API usage.
* System Prompt Customization: Customize the core instructions sent to translation models, with full support for HTML tag preservation and specific typography rules.
* Dynamic Model Selection: Connect to any model on OpenRouter, with visual badges highlighting free tiers, fast options, and auto-routing models.
* Tabbed Settings Dashboard: A fully responsive settings page with slide-in tab transitions and persisted navigation states.
External Service Integration
This plugin relies on the external service OpenRouter (https://openrouter.ai) to perform translation requests.
* Service URL: https://openrouter.ai
* Terms of Service: https://openrouter.ai/terms
* Privacy Policy: https://openrouter.ai/privacy
* Data Transmission: When you perform a translation, the selected text, chosen target language, system prompt guidelines, and your configured API key are securely transmitted via HTTPS requests to OpenRouter’s API endpoint (https://openrouter.ai/api/v1/chat/completions). No other personal or site details are shared.
Help & Guide
Step-by-Step Translation Guide
- Open any supported Post or Page.
- Write or paste your content in the Title, Content, Excerpt, or Custom text area.
- Observe that the translation panel automatically detects which fields contain text and lights them up.
- Select the field(s) you wish to translate.
- Select your target language from the buttons group.
- Click Translate Now.
- The fields will temporarily disable during execution and then update automatically.
System Prompt Best Practices
Use the system prompt to guide your translation model. Always keep the {target-lang} placeholder, which is replaced dynamically. To prevent models from breaking layouts, instruct them to preserve:
* WordPress blocks and shortcodes (e.g., 
* HTML tags and attribute values (e.g., class names, URLs)
* Typography preferences (e.g., prohibiting em dashes)
