🔥 BurnSub

Add Portuguese subtitles to Twitch Clips videos

Auto-generate Portuguese (Português) captions and burn them into your Twitch Clips video. 100% browser-based, no upload, no watermark, free forever.

16:9 horizontal · up to 60 seconds · powered by Whisper-Turbo

Why this works for Twitch Clips

Twitch clips need branded gamer aesthetic. Twitch-purple captions or gaming-neon styles fit the platform identity and resonate with stream audiences.

Why Whisper handles Portuguese well

BurnSub uses OpenAI's Whisper-Turbo (Whisper code: pt), which has been trained on hundreds of thousands of hours of Portuguese speech. Accuracy on clear-audio Portuguese content is typically 92–97%.

Recommended styles for Twitch Clips

Step-by-step: Portuguese subtitles for Twitch Clips

  1. Open BurnSub. No signup needed — just drop your Twitch Clips-format video.
  2. Pick Portuguese from the language dropdown so Whisper-Turbo transcribes accurately.
  3. Wait 30–60 seconds. The model runs locally on your GPU (or CPU as fallback).
  4. Edit captions if needed — every line is editable before burning.
  5. Pick a style from the recommended Twitch Clips presets above.
  6. Burn + Download. WebCodecs encodes your video on your hardware. No upload at any step.

Frequently asked

Is auto-caption accurate for Portuguese?

Whisper-Turbo's accuracy on Portuguese audio is typically 92–97% for clear speech. Background noise, heavy accents, and slang reduce accuracy. Every caption line is editable before burning, so you can fix anything Whisper missed.

Does the Twitch Clips algorithm reward burned captions?

Burned captions are read directly by viewers (the words appear on screen) — no AI-detection step required. Twitch Clips typically rewards videos with on-screen text because watch-time goes up. Burned subs typically out-perform soft subs on sound-off feeds.

Can I use Portuguese subs on a video that's spoken in another language?

Yes — generate the original-language transcript first, then use a translation tool to render it in Portuguese, paste the translated SRT back in BurnSub, and burn. Native translation is on the roadmap.

All languages for Twitch Clips

Portuguese subtitles for other platforms