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StreamTranslate — real-time live stream translation for Twitch, YouTube, Kick, and TikTok. Add translated subtitles via browser source. 50+ languages, under 2s latency or use our Twitch extension!

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Website, pricing, platforms and company facts side by side.
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| Website | streamtranslate.live | opalstack.com |
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| Company | Startup from the United States · 1 - 9 employees · 2026 | — |
| Listed in |
In their own words, as submitted to SaaSHub.


StreamTranslate adds real-time translated subtitles to live streams in 49 languages. Built for Twitch, YouTube Live, Kick, and TikTok creators, it turns spoken audio into translated captions that appear directly on stream. How it works Choose your spoken and target languages. Copy your unique...
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As answered by people managing StreamTranslate.live and Opalstack.
StreamTranslate.live's answer
The only live stream translation tool that works as a plain OBS browser source — no plugin to install, no software to download. Paste one URL into OBS and you're live with real-time translated subtitles in under 60 seconds. Under 2-second latency end-to-end.
StreamTranslate.live's answer
Existing tools like LocalVocal and RatWithACompiler's OBS plugin broke on OBS 30.2.3 and haven't been fixed. Enterprise options like Maestra and SyncWords cost hundreds per month and require dedicated setups. StreamTranslate starts at $9.99 and takes 60 seconds to set up. No install, no GPU overhead, works on Twitch, YouTube, and Kick.
StreamTranslate.live's answer
Live streamers on Twitch, YouTube, and Kick who want to reach international audiences — especially English-speaking streamers with non-English chat, and non-English streamers wanting to grow into English-speaking markets. Also VTubers with multilingual fanbases.
StreamTranslate.live's answer
Built after watching streamers like Adapt and QT talk about how they wished they could reach international audiences in real time. Every existing solution was either broken, too expensive, or required a technical setup most streamers wouldn't touch. StreamTranslate was built to be the version that actually works — simple, fast, and streamer-friendly.
StreamTranslate.live's answer
Node.js, Express, Socket.io, Deepgram (speech-to-text), multi-provider translation pipeline, PostgreSQL, Stripe, Railway (hosting), OBS browser source integration.
StreamTranslate.live's answer
Currently in beta with early streamer adopters across Twitch and Kick
Share your experience with using StreamTranslate.live and Opalstack. For example, how are they different and which one is better?
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Cloud-based solution that enables users to automate captioning and subtitling operations for both real-time and pre-recorded content.
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