Add Subtitles
Burn an SRT subtitle file into a video.
Exports mp4
How to use Add Subtitles
- Choose a supported video or audio file.
- Set the add subtitles options and preview them.
- Process the file and download the validated output.
Processing and privacy
The supported processing runs locally in your browser.
SRT timing is parsed and validated locally, caption text is safely rasterized to PNG cue overlays, and FFmpeg WebAssembly burns those timed overlays into a validated H.264/AAC MP4 while preserving source audio.
Common questions
Is Add Subtitles available now?
Available now as a browser-only beta for valid SRT captions and bounded MP4/WebM inputs.
Where does processing happen?
The supported processing runs locally in your browser.
Related Video tools
- Video Cropper — Crop the frame to a custom region.
- Video Rotator — Rotate a video 90 degrees clockwise, counter-clockwise, or 180 degrees.
- Video Resizer — Resize a video to exact custom dimensions.
- Change Video Resolution — Scale a video to a standard resolution preset.