Add Subtitles To Video

Summary

Load a video and an SRT or VTT subtitle file, preview subtitles live in the browser, and download the converted WebVTT file.

How it works

1. Choose a video file (MP4, WebM, MOV, or any browser-supported format).
2. Paste SRT or VTT subtitle text into the text area, or upload an .srt / .vtt file.
3. Click "Preview" to attach the subtitles to the video player as a native WebVTT track.
4. Play the video — subtitles appear as a styled overlay synchronized to the video.
5. Edit individual cues in the parsed cue list and re-apply to update the track.
6. Click "Download VTT" to save the converted WebVTT file to your device.

Use cases

• Preview how SRT subtitles look before hard-burning them with FFmpeg.
• Convert SRT files to WebVTT for use with HTML5 video players.
• Quickly check subtitle timing and synchronization against a video file.
• Edit individual subtitle cues and re-download the corrected VTT file.
• Verify auto-generated captions from speech-to-text tools before publishing.
• Test subtitle display on different video aspect ratios without encoding.

Frequently Asked Questions