Hey everyone, I've been working on a Chrome extension called YouTube Translate & Speak and I think it's finally at a point where I'd love to get some outside opinions. The basic idea: you're watching a YouTube video in a language you don't fully understand, and you want translated subtitles right there on the player — without leaving the page, without copy-pasting anything, without breaking your flow. Here's what it does: The stuff that works out of the box (no setup, no API keys): Pick from 90+ target languages and get subtitles translated in real time as the video plays Bilingual display — see the original text and the translation stacked together on the video. Super useful if you're learning a language and want to compare line by line Text-to-Speech using your browser's built-in voices, so you can hear the translated text read aloud Full style customization — font, size, colors, background opacity, text stroke. Make it look however you want Export both original and translated subtitles as SRT files (bundled in a zip). Handy for studying or video editing Smart caching — translations are saved locally per video, so if you come back to the same video later, it loads instantly without re-translating If the video already has subtitles in your target language, the extension detects that and just shows them directly. No wasted API calls, no unnecessary processing Optional upgrades (bring your own API key): Google Cloud Translation — noticeably better accuracy than free Google Translate, especially for technical or nuanced content Google Cloud TTS (Chirp3-HD) — the voice quality difference is night and day compared to default browser voices. These actually sound human Soniox STT — this is the one I'm most excited about. Some videos simply don't have any captions at all. With this, the extension captures the tab audio and generates subtitles from scratch in real time using speech recognition. It basically makes every video translatable A few things I tried to get right: YouTube is a single-page app, so navigating between videos doesn't trigger a page reload. The extension handles that properly — no need to refresh YouTube's built-in captions are automatically hidden while the extension is active so you don't get overlapping text. They come back when you stop API keys stay in your browser's local storage and only go to official endpoints. Nothing passes through any third-party server I've been using this daily for a while now and it's become one of those tools I can't really go back from. But I know there's a lot of room to improve, and I'd rather hear what real users think than just guess. So if you try it out, I'd genuinely appreciate any feedback: What features would you want to see added? Anything that feels clunky or confusing? Any languages where the translation quality is particularly bad? Would you actually use the TTS / STT features, or are they niche? I'm a solo dev on this, so every piece of feedback actually matters and directly shapes what I work on next. Don't hold back — honest criticism is way more helpful than polite silence. Thanks for reading, and happy to answer any questions!

YouTube Translate & Speak

YouTube Translate & Speak - Watch Any Video in Your Language

YouTube Translate & Speak - Watch Any Video in Your Language