Add subtitles to MP4
Add subtitles to MP4 videos in your browser: drop the MP4 and the SRT, and save a copy with the captions burned into the picture.
Runs entirely in your browser — the video is never uploaded
Read entirely in your browser — nothing is uploaded. Free, unlimited, no watermark.
No subtitle file? The auto subtitle generator writes them from the speech, lets you check them, and burns them in on the same page.
- Video
- None yet
- Subtitles
- None yet
This file's own styles are used: sizes, colours, outlines, bold and italic, alignment, margins and positions. Animations, karaoke, rotation and clipping are drawn without their effect.
Making the video: 0%. Keep this tab open.
Two files in, one out. Drop the MP4 and the subtitle file, set the size, colour and position, and save a new MP4 with the captions drawn into every frame, without the video leaving your computer. No subtitle file yet? The auto subtitle generator makes one from the speech, lets you correct it, and burns it in on the same page.
Questions
How do I add an SRT file to an MP4?
Drop both above, check how the captions look in the preview, and save. The new MP4 has them in the picture, so they show in every player and app.
Can I add the SRT as a track people can switch off?
Not here: this page burns them in. For switchable subtitles, give the SRT the same name as the MP4 and keep them in the same folder. VLC, Plex and most TVs then load it by themselves.
Does it work with MOV and MKV too?
Yes, as long as your browser can play the video. MOV, MKV and WebM go in as well. The copy comes out as MP4, or WebM if your browser can't make MP4.
How long does it take?
It depends on your computer and the length of the video. A progress bar shows how far it's got.