Add Subtitles to Video burns captions from an SRT or VTT file into the picture, so they show on every phone, app and player. Choose white text with an outline, white on a dark box, or yellow; small, medium or large; at the bottom or the top. A live preview over the player shows exactly how it will look. It runs in your browser and nothing is uploaded.
How to add subtitles to a video
- Choose a video: MP4, MOV, WebM or MKV.
- Choose the Subtitles file (.srt or .vtt), or paste the text into the box.
- Pick the Style, Size and Position. Play or scrub the video to check the preview.
- Click Add subtitles, keep the tab open while it works, then Download.
Styles
| Style | Best for |
|---|---|
| White with black outline | Most videos; the classic film and TV look |
| White on a dark box | Busy or bright backgrounds, snow, sky, white walls |
| Yellow with black outline | Older-style subtitles; stands out from white objects |
Medium suits phones and most social media. Use Large for vertical videos watched without sound, and Top when the bottom of the frame has text or a progress bar over it.
Subtitle file format
An SRT file is plain text: a number, a time line and the words, with a blank line between subtitles.
1
00:00:01,000 --> 00:00:03,500
Hello and welcome.
2
00:00:04,000 --> 00:00:06,200
Today we are making bread.WebVTT (.vtt) files work too. Formatting tags such as <i> and position codes such as {\an8} are ignored, and long lines are wrapped to fit the frame.
No subtitles yet?
Generate Subtitles turns the speech in a video into an SRT file, in your browser. Download it, correct names or words in any text editor, and burn it in here.
Good to know
- The result is MP4 (H.264 and AAC), or WebM in browsers that cannot make MP4.
- Burned-in subtitles cannot be turned off. To keep a version without them, keep your original file.
- Every frame is re-encoded, so a long video takes a while. Keep the tab open until it is done.
Private by design
Your video and subtitles are processed on your own device and never uploaded. See how it works.