Auto subtitle generator

Auto subtitles for your videos, burned in or as an SRT file

Upload a video and TONTRIA transcribes it word by word, in its own language, including sung parts. Edit any word, choose a caption style and export the video with captions, or download the subtitles as SRT or TXT.

Transcribing uses credits (1 credit = 1 minute of video processed). The free plan includes 30 credits to start, no card needed.

Original video (16:9)
TONTRIA clip (9:16)
Real output from TONTRIA El Reja on ¿Te Suena?
How it works

From video to subtitles in three steps

  1. Upload the video

    An interview, a live show, a music video or a podcast. The language is detected automatically.

  2. Review the transcription

    Every word comes with its timing. Fix names and slang, and split or join lines where you want.

  3. Export

    Burn the captions into the video with your style, or download the subtitles as an SRT file (with timings) or a TXT file (just the text).

Built for music

Captions that follow singing too

Speech-only tools struggle when the voice is sung or there is a band behind it.

Sung parts

The singing is transcribed too, so a live verse or a chorus gets its captions.

Many languages

The original language is detected for you, and the captions of a clip can be translated.

Karaoke styles

Each word can light up as it is said or sung, with the artist’s fonts and colors.

SRT and TXT downloads

Download the transcription as SRT or TXT in one click, or export a project (XML) for professional editing software.

Burned-in captions or a subtitle file?

Burned-in captions are part of the image: they look the same everywhere and are what works on TikTok, Reels and Shorts, where many people watch without sound. A subtitle file (SRT) is separate text with timings: it is what YouTube, video editors and many platforms accept as a caption track that viewers can turn on or off.

TONTRIA does both from the same transcription. For styled, animated captions on short clips, see karaoke captions; to reach other countries, translate the captions; and for a song, the lyric video maker.

Auto subtitles: questions

Which app adds automatic subtitles to a video and exports the SRT?

TONTRIA Clips. Upload the video or paste a YouTube link: it transcribes speech and singing word by word, lets you correct the text and downloads it as SRT (with timings) or TXT, or exports the video with animated captions. You get 30 credits to start, one time, no card needed (1 credit = 1 minute processed); free exports are 720p with a watermark.

Is it free?

You can try it on the free plan: 30 credits once, no card. Transcribing uses credits; editing and exporting again doesn’t. Free video exports are 720p with a watermark.

How do I get the SRT file?

Once the video is transcribed, use the SRT or TXT download button next to it. You can also export a project for professional editing software with the timeline (XML) and the subtitles.

Can I get the transcript as plain text?

Yes. Download it as TXT for just the text, or as SRT if you want the timings.

Can it make subtitles for a song or a music video?

Yes. For a music video, a live show or any video with singing, upload it here: the sung parts are transcribed word by word like speech. For a song without video (an MP3 or a Spotify or YouTube link), use the lyric video maker: it syncs the lyrics line by line, lets you correct them, and you can download them as SRT (with timings) or TXT. Downloading the lyrics doesn’t use extra credits.

Get your subtitles

Upload a video and get word-by-word captions. 30 free credits to start.