Generate subtitles automatically.
Upload any video or audio and get accurate, well-timed captions — plus translations into multiple languages — as standard SRT and VTT files you can use anywhere.
Files are auto-deleted after a retention window. See our Data retention
How it works
Upload your media
Any video or audio file up to 450 min — MP4, MOV, MKV, WebM, MP3, WAV and more.
Pick subtitle languages
Choose the spoken language or auto-detect it, then add every language you want subtitles in.
Preview and export
Watch your media with the generated captions rendered live, switch tracks, then download SRT and VTT per language.
Why TranSpeaker
Well-timed cues
Captions are segmented by natural pauses and sentence ends — readable lines, never one giant block.
Translated subtitles
Generate subtitles in the original language and translate them into multiple languages in the same job.
Standard SRT & VTT
Export formats that work everywhere — YouTube, video editors, media players and the web.
Preview before you export
Once uploaded, check every cue on your actual video in the player before you export a single file.
Frequently asked questions
Caption your content in minutes.
Upload a file and preview accurate subtitles rendered live. 10 free credits to start.
Start free