Subwave

Free and open source

Generate subtitles with AI, on your device.

Everything a captioning studio does: transcribe, retime, translate and burn in. The AI works on your device, with no account to make and nothing to upload.

Open the studio How it works

MP4 · MOV · WebM · MKV · MP3 · WAV · OGG

From sound to subtitles

How it works, in three steps

Everything happens on your device. The only thing that downloads is the AI, and only the first time.

  1. 1

    Drop your file

    Pick a video or audio file from your device. It opens right here, without uploading anything.

  2. 2

    AI transcribes

    The AI listens to the audio in your browser and writes each line with its timing, ready to edit.

  3. 3

    Edit & export

    Fix the text and timings, translate them to another language if you want, then download the subtitles or the video with the subtitles built in.

Your content never leaves your device

Subwave uses no servers. The AI downloads once and stays in your browser. After that, transcribing, translating and exporting always happen on your device.

  • No uploads
  • No servers
  • No accounts
  • No tracking