StreamTranslate is a pure browser-based live captioner — no download, no install, no desktop app. Just open, connect your mic, and your captions are live. Works as an OBS browser source in under 5 minutes.
Try Free Web CaptionerA web captioner is a browser-based captioning tool that converts spoken audio into on-screen text using cloud-based speech recognition. Unlike desktop software that requires installation and updates, a web captioner runs entirely in your browser — accessible from any computer, any OS, any streaming setup.
For streamers, this is a massive advantage. You don't need to install a plugin, configure a local model, or worry about software conflicts. StreamTranslate's web captioner uses our industry-leading speech AI ASR running in the cloud, which means it's always up to date with the latest accuracy improvements without you doing anything.
The browser-based architecture also means StreamTranslate generates an OBS browser source URL that you can paste directly into OBS Studio. Your captions render in the browser source layer — styled, positioned, and live — without any local processing overhead on your streaming PC.
Open streamtranslate.live in any browser, connect your mic, and start captioning. Zero software to download — runs 100% in the cloud.
Copy your unique URL into OBS as a browser source. Your web captioner becomes a styled caption overlay on your live stream instantly.
Not all web captioners are equal. StreamTranslate uses our industry-leading speech AI — the most accurate real-time STT engine for conversational and gaming speech.
Maestra positions itself as a video captioning platform, which means its real-time web captioner feature is secondary to its core video editing workflow. When you use Maestra for live captioning, you're using a feature that wasn't designed as the product's primary use case — and that shows in the setup complexity and pricing structure.
StreamTranslate was built as a live streaming captioner first, last, and only. Every feature exists to serve streamers: the browser source integration, the gaming vocabulary in the ASR model, the 125-language translation support, and the per-hour pricing that makes sense for streaming schedules. There's no video editor you'll never use, no timeline, no post-production workflow bolted onto a live tool.
Open StreamTranslate in your browser and create a free account. Set your source language, choose any translation languages you want active, and click "Go Live." StreamTranslate will give you a browser source URL. In OBS Studio, add a Browser Source, paste the URL, and set dimensions to match your scene layout. Captions appear live, styled with your chosen colors and font size, updating in real time as you speak.
You can run the StreamTranslate web captioner on a second monitor or secondary browser tab — completely separate from your streaming PC's resources. Because all processing happens in the cloud, your stream PC only handles displaying the browser source, which is negligible CPU/GPU cost. See the full setup guide for screenshots and step-by-step instructions.
A web captioner is a browser-based tool that converts your speech into live captions without installing any software. StreamTranslate is a web captioner that doubles as an OBS browser source overlay for live streams.
StreamTranslate offers a free tier that lets you use the web captioner for live streams. Paid plans unlock higher accuracy, more languages, and longer streaming hours.
Maestra is primarily a video editor with captioning. StreamTranslate is a dedicated web captioner built for live streamers — faster, cheaper, and with native OBS integration.
Yes. StreamTranslate generates a browser source URL that you paste into OBS, turning the web captioner into a live caption overlay on your stream.