Add subtitles to a video
Your files are processed on your device. We never upload them.
Video is read and written with Mediabunny, under the Mozilla Public License. Browsers without their own AAC encoder use FFmpeg's, under the GNU LGPL.
How to add subtitles to a video
- 01A ▸Choose a video, or drop it on the page.
- 02A ▸Choose the subtitle file (SRT or VTT).
- 03A ▸Pick As a track or Burned in, then select Add subtitles.
- 04A ▸Download the video.
Questions
Are my files uploaded?
No. Your files are processed on your device. We never upload them.
What's the difference between a track and burned in?
A track sits beside the picture, so viewers can turn it on and off in the player; adding it takes seconds and doesn't touch the picture. Burned-in subtitles are drawn onto the picture, so they show everywhere, including on social sites that ignore tracks, but they can't be turned off and the video is re-encoded.
Which players show a subtitle track?
VLC, QuickTime, and most TVs and phone players show it from their subtitle menu. Browsers don't show tracks inside a video file, and social sites ignore them, so burn the subtitles in for posting.
Why did my MOV come back as MP4?
MOV files can't carry this kind of subtitle track, so the video is copied into MP4, which can. The picture and sound are unchanged. MKV and WebM stay as they are.
Can I change the subtitle font or position?
Not yet. Burned-in subtitles are white with a black outline, centred near the bottom, and sized to the video. Formatting such as italics in the file is left out.
Where do I get a subtitle file?
Subtitle sites, your editing app's export, or a transcription service. Make sure its timing matches your version of the video.