Vidonto

Feature

Automatic captions for summary videos and recordings

Vidonto adds captions that follow the voice word by word, lets you choose caption length and breaks, and gives you SRT and VTT files for upload.

Updated

Most people watch short videos with the sound off. Every video Vidonto makes has captions, timed to the voice so they change as the words are spoken. You choose how much text appears at once, and you can fine-tune where each caption breaks.

A vertical video frame with a chart of three price levels and a caption at the bottom that highlights the spoken word in yellow
Captions highlight the word being spoken.

Captions in summary videos

When you build a storyboard, two settings decide how text appears:

  • On-screen text. Narration text shows the exact words being spoken, in synchronized phrases. Key points shows short points on screen while the narration plays, with plain subtitles underneath.
  • Caption length. Short shows a few words at a time, Medium about one line, and Full sentence a whole sentence when it fits.

You can change both in the Studio or in Quick Render, and set them once as defaults in Settings.

The AI Storyboard step with the Use AI Images switch, the On-screen Text menu set to narration text and the Caption length menu set to Medium
Choose on-screen text and caption length before generating the storyboard.

Edit caption breaks

In the storyboard editor, click between two words to start a new caption there, or click a break to remove it. The preview uses the same splitting rules as the final render, so what you see is what you get. If you later change the caption length, automatic captions are re-split, but frames where you placed breaks by hand keep them.

Download caption files

After the render, download the captions as an SRT file next to the MP4. Upload it to YouTube or another platform as a separate subtitle track. This makes the words searchable and lets viewers turn captions off.

Captions for your own recordings

The Video Editor makes captions from your recording’s transcript. They follow your edits, so words you cut never appear in the captions.

  • In the browser export, download captions for the edited video as SRT or VTT.
  • In a polished video, captions are burned into the picture, with an option to highlight the spoken word. Read more about polished videos.
The Export panel of the Video Editor with Export video, SRT and VTT caption downloads, Export in the cloud and Make a polished video
SRT and VTT caption files for the edited recording.

Limits worth knowing

  • Captions are in the language of the narration or the recording. Vidonto doesn’t translate captions into other languages.
  • Burned-in captions can’t be turned off by the viewer. If you want both, also upload the SRT file.
  • Very long words or numbers may wrap onto two lines on vertical videos. Check the preview.

Credits

Captions are included with every render at no extra cost. Downloading SRT or VTT files is free.

To see captions on the finished file, follow export your finished video.

Related guides and features

Screenshot for The storyboard editor in Vidonto

Feature

The storyboard editor

Edit the spoken words, headlines, layouts and caption breaks of every frame in your video before anything is narrated. Storyboard edits never use credits.

Screenshot for Vertical, square and landscape formats in Vidonto

Feature

Vertical, square and landscape formats

Make the same video as a 9:16 vertical for Shorts, Reels and TikTok, a 1:1 square, a 4:5 portrait or a 16:9 landscape. Layouts are designed for each shape.

Screenshot for Polished videos from recordings in Vidonto

Feature

Polished videos from recordings

Turn an edited recording into a finished video with burned-in captions, title and end cards, a frame style and gentle zooms — in landscape, vertical or square.

Screenshot for Export your finished video in Vidonto

Guide

Export your finished video

Export your edited recording for free in the browser, in the cloud when your computer can't, or as a polished video with captions in vertical or square shapes.