Automatic subtitles for YouTube
Upload your video and get a YouTube-ready SRT file — or a .mp4 with subtitles already burned in.
Why add subtitles to YouTube?
Subtitles improve your video's SEO, boost retention, and reach viewers watching without sound. YouTube also uses them to understand and recommend your content.
How does it work?
Upload your MP4. Whisper large-v3 transcribes with word-level timestamps and we generate a professional SRT following Netflix/BBC rules (42 chars per line, max 2 lines, 1-7 second duration).
Can I translate the subtitles?
Yes. Pick target languages (English, Portuguese, Spanish, French, Italian, German, Japanese, Chinese) and we produce an SRT per language preserving the original timestamps.
Can I get the video with subtitles burned in?
Yes. Enable 'Return the video with burned-in subtitles' and we send back an MP4 ready to upload to TikTok, Reels or any platform that doesn't accept SRT files.
FAQ
YouTube Studio → Subtitles → select your video → Add language → Upload file → choose the .srt.
Yes, we use word-level Whisper timestamps and group them into cues using pro-grade rules.
Up to 500 MB. A 30-40 minute HD video fits comfortably.
Yes, and burned-in subtitles look great on YouTube Shorts.