Features

ClueLens is a browser extension for language learners and translation-heavy workflows. It focuses on fast, flexible, and configurable lookup across multiple sources.

Multi-source lookup

ClueLens currently integrates 12 language sources in three categories:

Category	Sources	Count
Dictionary	Bing Dictionary, Jisho, DictionaryAPI, Zdic, Moegirl, Wiktionary, Urban Dictionary, Open Multilingual Wordnet	8
Translator	Google Translate, Caiyun, DeepLx	3
AI	OpenAI with compatible APIs or local models	1

All enabled sources are queried in parallel, and the results are rendered in sequence. You can enable or disable any source and reorder them with drag and drop.

For the full source list, see Dictionaries & Translators.

Automatic language detection

ClueLens includes lightweight language detection for the following languages:

• Chinese, Japanese, Korean
• English, French, Spanish, German

When enabled, ClueLens filters out incompatible sources automatically. For example, when the input text is Chinese, English-only sources are skipped.

You can turn this on or off in Settings -> General.

TTS pronunciation

You can listen to pronunciation directly from the lookup results. ClueLens supports two voice engines:

Engine	Description	Strength
Web Speech API	Browser built-in speech synthesis	Offline, fast, and multilingual
Lingva	Online voice service	More natural pronunciation, requires network

You can also configure:

• Auto preload audio to fetch audio in advance
• Auto play to start playback automatically when results appear

Vocabulary

ClueLens includes a built-in vocabulary list to help you collect unfamiliar words:

• Save words directly from the lookup panel
• Each record stores the word, source dictionary, and saved time
• Review and manage saved items in Options -> Vocabulary
• Export the vocabulary list when needed

Material Design 3 theming

The UI uses Google Material Design 3 dynamic color generation:

• Theme seed color to generate a full palette from one color
• Dark mode toggle
• Chroma controls saturation
• Tone controls brightness

The generated palette applies to the inline panel, popup, and side panel.

Settings backup and restore

ClueLens can export all settings as a JSON file. This is useful for:

• Moving your setup between devices
• Restoring after reinstalling the browser
• Sharing a preferred configuration with other users

The export includes general settings, enabled sources and ordering, and per-source API configuration.

See Settings -> Backup and Restore for details.

Context menu

Right-click any web page to access the ClueLens menu item:

• Open Side Panel to switch into side-panel mode quickly

Keyboard shortcuts

ClueLens can also be opened with browser extension shortcuts. Configure them in your browser:

• Chrome: chrome://extensions/shortcuts
• Edge: edge://extensions/shortcuts
• Firefox: about:addons -> gear icon -> Manage Extension Shortcuts

Next

• Learn the details of each source in Dictionaries & Translators
• Customize the extension in Settings