Generate Subtitles from Any Video

Typing subtitles by hand takes 5-10 minutes per minute of video. An AI subtitle generator does the same job in a fraction of the time: OpenAI Whisper listens to the video's audio track, transcribes the speech, and stamps every line with start and end times. 1Transcribe accepts MP4, MOV, AVI, MKV, and WEBM uploads (audio files work too) and outputs a standard SRT file that every major platform understands. It runs in the browser — nothing to install — and in the iOS, Android, Mac, and Windows apps.

Auto-generated captions are only as good as their worst line, so 1Transcribe puts an editor between transcription and export. Fix a misheard brand name, adjust punctuation, tighten a sentence — the timestamps stay locked to the original audio while the text updates. Up to 99.9% accuracy on clear audio means editing is usually a quick review pass rather than a rewrite, and automatic speaker labels help when several people talk over each other in the footage.

SRT is the universal subtitle format, so one export covers every destination:

Whisper auto-detects the spoken language from 99+ options, so a Spanish interview or a Japanese product demo subtitles just as accurately as English footage. You can also have foreign-language speech translated into English, producing English subtitles for international footage in one pass. A single video can run 10 hours and 5 GB — full webinars and conference sessions included — and you can batch 5 files at a time. Videos under 5 minutes are free with no signup; Unlimited is US$19.99/month or US$49.99/year (about US$4.17/month). Uploads are never used to train AI and are deleted after 14 days.