Add Vietnamese subtitles to Instagram Reels videos
Auto-generate Vietnamese (Tiếng Việt) captions and burn them into your Instagram Reels video. 100% browser-based, no upload, no watermark, free forever.
9:16 vertical · up to 90 seconds · powered by Whisper-Turbo
Why this works for Instagram Reels
Reels users skew design-conscious. Minimal centered captions with subtle backgrounds outperform garish styles on Instagram's algorithm.
Why Whisper handles Vietnamese well
BurnSub uses OpenAI's Whisper-Turbo (Whisper code: vi),
which has been trained on hundreds of thousands of hours of Vietnamese speech.
Accuracy on clear-audio Vietnamese content is typically 92–97%.
Recommended styles for Instagram Reels
Reels Minimal Center
Beauty Soft Rose
Travel Vintage Cream
Corporate Clean Pill
Step-by-step: Vietnamese subtitles for Instagram Reels
- Open BurnSub. No signup needed — just drop your Instagram Reels-format video.
- Pick Vietnamese from the language dropdown so Whisper-Turbo transcribes accurately.
- Wait 30–60 seconds. The model runs locally on your GPU (or CPU as fallback).
- Edit captions if needed — every line is editable before burning.
- Pick a style from the recommended Instagram Reels presets above.
- Burn + Download. WebCodecs encodes your video on your hardware. No upload at any step.
Frequently asked
Is auto-caption accurate for Vietnamese?
Whisper-Turbo's accuracy on Vietnamese 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 Instagram Reels algorithm reward burned captions?
Burned captions are read directly by viewers (the words appear on screen) — no AI-detection step required. Instagram Reels 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 Vietnamese 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 Vietnamese, paste the translated SRT back in BurnSub, and burn. Native translation is on the roadmap.