Free Stream Translation: What's Actually Free in 2026
Last updated: March 20, 2026
Quick Answer
The truly free live stream translation options in 2026 are: the OBS built-in captions plugin (English only, requires Google API), stream-cc (English captions only, LocalVocal requires technical OBS configuration and has no translation support.
What 'Free' Actually Means for Stream Translation
Free stream translation tools exist but come with real trade-offs: high latency (5-10 seconds), English-only output, and CPU drain on your streaming PC. StreamTranslate offers a free trial with professional-grade sub-2-second latency.
| Tool | Free Tier | Translation? | GPU Needed? |
|---|---|---|---|
| StreamTranslate | Free trial (hours included) | Yes — 10+ languages | No |
| stream-cc | Fully free | No — English only | No |
| OBS Built-in Captions | Free (Google API quota applies) | No — English only | No |
LocalVocal requires local GPU resources and has no translation capability
If You Want Translation (Not Fully Free)Live stream translation requires significant compute — AI transcription + neural machine translation running in real time. No tool offers truly unlimited free translation. The options:
The Real Cost of 'Free' ToolsFree tools come with hidden costs: setup time, API key management, GPU hardware, and reliability issues. The OBS captions plugin breaks frequently with OBS updates and has a known Google API quota problem. LocalVocal requires technical OBS configuration and has no translation support. Frequently Asked QuestionsIs there a completely free live stream translation tool?No tool offers unlimited LocalVocal which only handles local English transcription What is the best free OBS captions tool?stream-cc is the best completely free OBS captions option for English-speaking streamers. It delivers English closed captions with no account or API key required. For translation, StreamTranslate has a 6-hour free trial. Does StreamTranslate have a free plan?StreamTranslate has a 6-hour free trial with no credit card required. Paid plans start at $3.99/month for 25 hours of translation. A one-time 24-hour Stream Pass is available for $0.99.  StreamTranslate Team Published by the StreamTranslate team. We build real-time live stream translation tools for Twitch, Kick, and YouTube, X, and TikTok streamers. Try StreamTranslate free — no credit card required Start Free — No Downloads, No Plugins |