Burn captions into videos for social media
Add your own subtitles to a video so they show on every platform — right in your browser, with nothing uploaded. Or convert a subtitle file between SRT and VTT. Built for short-form clips: burning happens on your device, so long videos will take a long time.
Burn captions into a video
Drop your videos here
or
MP4, MOV, WebM or MKV · Up to 200 MB each · Best for short clips
Drop your subtitle file here
or
SRT or VTT files
Add a video and a subtitle file to burn in.
Convert subtitles
Pick a subtitle file and convert it to the other format. The words and timings stay the same. The same file is used for both halves.
Drop your subtitle file here
or
SRT or VTT files
Add a subtitle file to convert.
Burning in captions, simply explained
Burning in means the words become part of the picture itself, so they show on any platform, with or without sound, and nobody needs to turn subtitles on. You supply the subtitle file — this tool does not write captions for you — and it re-encodes your video as MP4 (H.264 video with AAC audio) with the words drawn over the picture. Only the first audio track is kept, and HDR videos are converted to standard colour. Converting subtitles only changes the file format: SRT and VTT carry the same words and timings, so nothing is lost either way. Everything runs on your device, which keeps your files private but means speed depends on your device.