The video and subtitles are processed on your device. Nothing is uploaded. Add a video and a subtitle file, choose a style, and save a new MP4 with the captions part of the picture. It is free and private.
How to burn captions into a video
- Press Choose a video, or Try an example to see how it works.
- Open an SRT or WebVTT subtitle file, or paste the text into Subtitle text.
- Choose a Style, a Position (Bottom, Middle or Top), and adjust the text Size, Font and Capital letters.
- Check the preview at a few moments in the video.
- Use Shift timing in seconds if the captions are early or late.
- Press Download to save the new video. Stop cancels if it is taking too long.
Why burn captions in
Subtitle files only show when the player supports them and the viewer turns them on. Burned-in captions are part of the picture, so they show everywhere: in feeds, in stories, on muted autoplay and when the video is reshared. Choose a style, check it on the preview at a few moments, then save a new MP4.
Supported files
Videos can be MP4, MOV, M4V, WebM or MKV. Subtitles can be SRT or WebVTT files, or text you paste in.
Tips for readable captions
- Keep lines short, around two lines at a time, so viewers can read them before they change.
- Use a large size for phone-sized videos, and keep text away from the edges.
- Check contrast against bright and dark scenes alike.
- For vertical videos, Middle or a larger size keeps captions clear of the buttons that apps place over the bottom of the screen.
- Watch the finished video all the way through before posting it.
Common uses
Creators and small businesses posting short videos, teachers sharing lessons, and anyone who wants a video to make sense with the sound off. It also helps viewers who are deaf or hard of hearing and viewers who watch in a second language. To check how readable your captions are, see the caption checker.
Questions
Where do I get subtitles?
If your video has speech, the subtitle generator listens to it on your device and saves an SRT file. Open that file here. You can also paste subtitles from any editor, in SRT or WebVTT format.
The captions are early or late. What do I do?
Use Shift timing. A positive number such as 0.5 shows every caption half a second later; a negative number such as -0.5 shows them earlier.
Which style should I pick?
Clean, white with a dark outline, reads on almost any picture. Boxed puts each line on a dark band for busy footage. Bold pop is the big, bright look common on short videos, and Brand uses your colour from Your Snowkit. For vertical videos, Middle or a larger size keeps captions clear of the app’s buttons.
What format is the new video?
Current Chrome, Edge and Safari save an MP4 with H.264 video and the original sound re-encoded as AAC, which every app accepts. Other browsers save a WebM.
Can the captions be removed later?
No. They become part of the picture, so keep your original video.