Dualsub - Dual Subtitles for YouTube

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Display dual subtitles on video websites.

Latest reviews

• (2025-06-12) Daniel: Even in passive mode, your extension can only load the original auto-generated subtitle, with no Youtube translation available. Your extension does have a translation function to cover this problem, but you decided to paywall it. Rendering (the current version of) your extension practically useless for most videos. I get that you need to make a living and all that. We all do. But instead of paywalling premium functions (like downloadability, etc), you paywalled a basic function that made your extension useless. What do you think your users are gonna do now? Are they gonna pay you, or are they gonna switch to your competitors? Edit: I saw your post. I don't quite understand what you meant. There maybe problem with Chinese language, but for me (and maybe others too) things have been just fine. The original and the Youtube translation mostly matched each other. There is no major problem. Until now. When both subtitles are integrated in your extension, they physically match each other word by word, making it easy and convenient to read. But now, you know how bad Youtube's own display is. Now it's all over the place. That's why I said your extension is practically useless for most videos. But still, I wanna thank you for posting the needed older version in your post.
• (2025-06-12) srm15k srm15k: Doesn't work on youtube
• (2025-06-07) wa da: Basically there are no functions now if you can't pay.
• (2025-05-16) 403 Forbidden: I have use this extension for years. however, the more updates, the less function it become
• (2025-03-09) Lyrical Gee: No option for pinyin
• (2025-02-09) Perry Nguyen: > Remove the Chinese Pinyin feature. Why???
• (2024-11-27) Google “Wizard” Account: I really like it! Didn't expect it to be that good. GJ MAN!
• (2024-11-16) Aaron: This is my favorite translation plugin after using many, simple and efficient. The only drawback is that you can't set the color of the original text and the translation separately, if you can set the color separately then it will be great! Would very much like the author to improve and update this feature.
• (2024-11-07) May yadas: work with iqiyi
• (2024-09-29) 吳詠晴: Often unusable.
• (2024-09-03) humanoid G: Not a free product
• (2024-09-02) 김은빈: add coupangplay
• (2024-07-27) color s: Always "unexpected end of json input " , how is it worked?
• (2024-06-14) 赖南星: is it broken?
• (2024-06-02) Света Золотарева: Amazing! This is exactly what I was looking for.
• (2024-04-26) Yu-Ssu Lin: There's an issue with the settings adjustment area; the interface is all squished together, making it impossible to adjust the contents inside.😥 Please help fix this. Thank you so much!
• (2024-04-26) Yu-Ssu Lin: There's an issue with the settings adjustment area; the interface is all squished together, making it impossible to adjust the contents inside.😥 Please help fix this. Thank you so much!
• (2024-03-14) Tomek tse: Doesn't work on Netflix occasionally
• (2024-03-14) Tomek tse: Doesn't work on Netflix occasionally
• (2023-12-15) 2In Sub: First off I have to say that I have been using this extension happily for awhile now. I have tried many subtitle extensions and this one, hands down, has been my favourite! Most other subtitle extensions have limited website support and only display bilingual subtitles on the free model. However, the options and features have gradually decreased since I started using the extension. On December 14, 2023, the free model changed to limiting usage to only YouTube, bilingual subtitle display and removing ability to change size of font per language. I am a native speaker of a two languages and used the extension to display at least three languages simultaneously. This method allowed me to understand the nuance of the new language I am learning as I can see translations for the two other languages. Completely understandable that they moved to a pay model, but without previous options, especially multi website / subtitle support, subscription is highly unlikely.
• (2023-11-13) Neon Ghost: Please let us change colour. Its hard to watch with two subtitles in one colour
• (2023-11-12) Yo Yo: 字幕不同步和無法調整字體大小的問題很久了= = 2023年了都沒改變
• (2023-10-20) ping yang: 总体断句不错。但价格太贵了，而且谷歌翻译还是差点意思，偶尔报获取失败。界面样式自定义程度不高。
• (2023-10-13) Hippo kun: 凄く便利で気に入っていますが、フォントがアップデート前と比べると見にくくなっています。
• (2023-10-02) hao chen: 收取费用有点贵了，其他都挺好的。
• (2023-09-24) Akehira KIO: 直播只能翻译英文吗？没有其他语言选项
• (2023-09-04) Defoko Q: 最近付费的翻译抽风了？所有视频字幕语言都只有英语(auto-generated)+
• (2023-08-25) Terry He: subtrans 好用， 邀请注册就可以获得免费时间了， 需要的可以叫我， 我代码自动刷
• (2023-08-14) Pongsatond Trechinapong: Not for free any more
• (2023-08-14) Pongsatond Trechinapong: Not for free any more
• (2023-08-07) 第431只浣熊: 无痛替换------------AI沉浸翻译和YouTube/Netflix双字幕 - Trancy
• (2023-07-29) 빈이: This is one of my favorite extensions ever, however recently I'm having problems with youtube subtitles and I tracked it down to this extension. Subtitles keep resetting every other second and flashing on screen as if you had just activated them each time. This happens even with YT's native subtitle system (even auto-generated closed caption) and all extension options off, it only goes away when I disable this extension. I don't use github and don't want to spam the email so I hope this issue gets seen and fixed soon! Thank you for this extension.
• (2023-07-29) 빈이: This is one of my favorite extensions ever, however recently I'm having problems with youtube subtitles and I tracked it down to this extension. Subtitles keep resetting every other second and flashing on screen as if you had just activated them each time. This happens even with YT's native subtitle system (even auto-generated closed caption) and all extension options off, it only goes away when I disable this extension. I don't use github and don't want to spam the email so I hope this issue gets seen and fixed soon! Thank you for this extension.
• (2023-07-24) phattdee17: I can't use it for Disney+
• (2023-07-24) phattdee17: I can't use it for Disney+
• (2023-07-23) 三蜀黍: 最近Youtube的翻译功能是又抽风了吗，翻译又失效了。 还有是因为服务器费用太贵吗？费用有点过高了
• (2023-07-22) 谢运明（myxvisual）: very high price！！！
• (2023-07-22) 谢运明（myxvisual）: very high price！！！
• (2023-07-15) konan: Why is this version of the extension trash compared to the one for firefox? 80% of the settings are removed for no discernible reason
• (2023-07-15) konan: Why is this version of the extension trash compared to the one for firefox? 80% of the settings are removed for no discernible reason
• (2023-06-30) Spike Shi: 2020年7月31日 1、建议有一个推荐的默认样式，或者记住上次选择的样式，不然经常要重新设置，很麻烦。 2、与dark reader插件有冲突，开启黑暗模式之后，字幕会一开始很粗大+变黄，然后变成自己调的大小，每翻译一句话就会出现这种情况 ———————— 2023年6月30日 抢钱无疑，这个订阅费用太高了，不掂量掂量自己一下吗？
• (2023-06-30) 許天: 疑惑 請問網路上看到大陸在用dualsub 1.15.0版？？就可以調整字的大小？請問這個版本是...？？官方的嗎？還是....？因為居然要去下載APK才能用，我是沒有下載？怕又是通後門的APK.....
• (2023-06-25) MİLLER 7: paying a fee
• (2023-06-25) MİLLER 7: paying a fee
• (2023-06-23) Jason Lee: Disney+的<秘密入侵>字幕不同步，之前看其他串流作品沒遇過這種情況，看其他留言下來，好像都是D+會有問題，還請開發者務必修正
• (2023-06-13) Mariama Right Here: It's good but only let's me watch for 10 minutes and then it says API key needed
• (2023-06-13) Mariama Right Here: It's good but only let's me watch for 10 minutes and then it says API key needed
• (2023-05-31) Gerardo Vazquez: Es una aplicación excelente!! Gracias.
• (2023-05-26) Sakda Kaewwimon: I haven't been able to activate this program in Disney +. Please fix the problem.
• (2023-05-26) Sakda Kaewwimon: I haven't been able to activate this program in Disney +. Please fix the problem.