Live Captions Software

Live Stream Captions Software

The most reliable live stream captions software for 2026. Real-time, OBS-native, no plugin. Works on Twitch, YouTube Live, Kick, and every major streaming platform.

Try Free for 6 Hours → See pricing

What live stream captions software needs to do

Live stream captions software is a category that's evolved a lot. The legacy tools (LocalVocal, Polyglot OBS, Web Captioner) were OBS plugins with significant CPU/GPU cost. The newer category — cloud-based browser source tools — eliminated those costs entirely.

The best live stream captions software in 2026 should:

Be cloud-based (no local CPU/GPU cost)
Run as OBS browser source (no plugin install)
Have sub-2-second latency
Hit 95%+ accuracy
Support multiple languages
Be customizable (font, color, position)
Cost less than $50/mo for serious streamers

How StreamTranslate does live stream captions

Sign up at /control — first 6 hours free
Choose your captioning mode (same-language or translated)
Copy the OBS browser source URL we generate
Paste into OBS as a Browser Source
Stream to Twitch, YouTube Live, Kick — captions appear on your stream

How we compare to other live stream captions software

vs LocalVocal: we're cloud (zero CPU), they're plugin (heavy CPU). Comparison
vs Captions.ai: we're OBS-native, they're a separate desktop app. Comparison
vs Web Captioner: we're paid + reliable, they're free + unreliable. Comparison
vs Otter.ai live: we're for streamers (overlay), they're for meetings (transcript). Comparison

What this captions software costs

Stream Pass: $9.99 for one session up to 12 hours. Starter: $14.99/mo for 25 hours. Pro: $34.99/mo for 50 hours + dual-language. Unlimited: $199/mo for unlimited streaming. No setup fee, no contracts. Full pricing.

Frequently asked

What live stream captions software works on Mac?

StreamTranslate works on any computer that runs OBS — Mac, Windows, Linux. Because we're a browser source, the captions software runs in your browser, not as a native app.

Does live stream captions software need a fast internet connection?

Stable internet is more important than fast. We need 200kbps+ continuous to send your audio to our cloud. Most home connections far exceed this.

Can I use captions software on a low-spec laptop?

Yes. All transcription happens in our cloud. Your laptop's CPU and GPU are untouched by the captioning process.

What's the latency of live stream captions software?

Sub-2 seconds for StreamTranslate. Other software ranges from 1-15 seconds depending on architecture.

Are captions software auto-captions reliable in 2026?

Modern auto-captions (Deepgram nova-3, Whisper, Google v3) hit 95%+ on clear speech. Compared to 2020-era auto-captions (~70-80%), they've improved dramatically.