Add Subtitles to Video Online for Free
Upload a video and subtitle file, then download a new video with subtitles added as a separate track.
Upload video and subtitles
Add subtitles as a selectable track instead of burning text into the picture, while keeping the original video and audio where possible.
Hints
- Wait for the current download to finish before starting another subtitle job, or it may fail.
- Very large files may take longer or fail on memory-limited browsers or devices.
Status: Ready
How to use
- 1 Choose a video file from your device.
- 2 Choose an SRT, VTT, or ASS subtitle file.
- 3 Click Add Subtitles.
- 4 When processing finishes, click Download.
Supported formats
Video input
Subtitle input
Output
Selectable subtitle track
Subtitles are added as a track that supported players can turn on or off.
Keeps video quality
The video picture is preserved where possible because subtitles are not burned into the image.
No cloud upload
Your video and subtitle files stay on your device while the browser prepares the download.
Frequently asked questions
Are subtitles burned into the video picture?
No. This tool adds subtitles as a separate track, so supported players can show, hide, or select them.
Will adding subtitles reduce video quality?
Usually no. The video stream is preserved where possible because the subtitle text is not rendered into the image.
Why can the subtitle type change in the output?
Some video formats require a specific subtitle type, so the newly added subtitle may be prepared for that container while the original streams are preserved where possible.
Are my files uploaded?
No. Processing runs in your browser, so your video and subtitle files are not uploaded to a server.
Related tools
Need large files, batch subtitle jobs, or more track controls?
The online tool is convenient for adding one subtitle file quickly. For bigger jobs, Brivotech Video Converter gives you a faster desktop workflow with large file support, batch processing, offline work, and more control over video outputs.
Batch subtitle work
Prepare multiple videos without repeating the same browser workflow.
Large video support
Work with files that are too big or slow for browser-based processing.
Offline and private
Process media locally on your computer without uploading videos to the cloud.
Desktop workflow
Use a more reliable local app for repeated exports and heavier media tasks.