With the eJOY Extension, you can watch bilingual subtitles while learning from movies and videos on YouTube, Netflix, Coursera, and more.
Besides the original subtitles, eJOY offers Machine Translation (Google/Microsoft) and AI Translation (powered by eJOY AI) to help you understand content faster and more naturally.
Subtitle Translation Modes:
- Google/Microsoft Translation → Quick machine translation.
- eJOY AI Translation → Uses AI to provide more natural, context-aware translations.
(Available only for Pro users with remaining AI queries.)
1. How to turn on Machine Translation
Step 1: Open a video that has subtitles (e.g. YouTube) and turn on the subtitles.
Step 2: Click the eJOY icon.
Step 3: Check the box Machine Translation.
Step 4: Choose your translation source: Google / Microsoft / eJOY AI.
- Note: To quickly translate entire sentences, press the key combination (Alt+J) for Windows or (Option+J) for macOS.
- You can also quickly look up meanings by hovering your mouse cursor over the word you want to translate. The meaning will appear right above the word being translated.
2. Choose a default translation model (Google, Microsoft, eJOY AI)
Previously, when you used eJOY AI, the AI translation automatically turned off after each video to help you avoid using too many AI queries. Now, eJOY has added a Default translator option so you can choose which translation model to use by default when watching videos.
How to set it up:
Method 1:
Open Full settings in the video player → In Default video translator, select the model you prefer: Google, Microsoft, or eJOY AI.
Method 2:
Use the “Keep AI translation as default” option in the popup (this popup appears when you select eJOY AI in Step 4, Section 1).
3. How to customize subtitles using the Machine Translation feature
- First, open the subtitle customization dialog by clicking on the eJOY icon (1) and select "Full settings" (2).
- Next, select "Show machine translation" (3), and you can freely customize the subtitle format with the following options:
→ Auto Translate (a): Always translate subtitles (the translation will be displayed as a 3rd subtitle when you hover over a word in the primary subtitles).
→ Auto Pronunciation (b): Automatically pronounce any word in the primary subtitles when you hover over.
→ Translate To (c): The language of the translation.
→ Font size (d): The font size of the translation displayed when you activate Machine Translation.
→ Format (e): How the transition is displayed.
- After completing this, you can preview the subtitle format under "Preview Sub" (f).
4. Account Access & Limits
- Basic account: Only Google/Microsoft translation on YouTube.
- Pro account (no AI queries left): Google/Microsoft translation on all supported video sites.
- Pro account (with AI queries left): Access to both Google/Microsoft and eJOY AI translations.
Important Notes:
- If you’re on Pro but run out of AI queries, the system will switch you back to Google Translate. To keep using AI translation, you’ll need to wait until your queries reset next month (if your Pro plan is still active), or contact eJOY to purchase extra queries.
- AI queries are shared across all AI-powered features in eJOY – not just subtitle translation. This includes AI Summary, AI Explain, AI Inline Translation, AI Deep Dive, and more. Once you run out of queries, all these AI features will stop working.
- To enjoy eJOY AI translation and other AI-powered tools, upgrade to eJOY Pro. You can see all Pro plan options on our website.