Manual Video Caption Editor
The Manual Video Caption Editor lets you watch a video and add a caption line at any moment with one click, then type the text and fine-tune its start and end time (you can also set either directly to the video's current playback position). Once you've added every caption you need, download the finished subtitle file as SRT or WebVTT, ready to use in the Subtitle Burner tool or any other video player. Everything happens in your browser — the video is never uploaded to a server.
Your video is processed on your device and is never uploaded to our servers.
Only use this tool with files you own or have the right to process.
Drag a video here or choose one
MP4, WebM, MOV, or MKV
What this tool does
Builds a subtitle file for a video in the browser: you play the clip, add a caption at the current moment, adjust each caption's start and end, then export as SRT or WebVTT.
When to use it
- Adding subtitles to your own clip before publishing it.
- Producing a separate subtitle file for a platform that supports one.
- Writing out a clip's words so it makes sense watched without sound.
- Making your content accessible to deaf and hard-of-hearing viewers.
How to use it
- Put a video on the drop area or choose it.
- Play the video and click "Add caption at current time" at the start of each line.
- Type the "Caption text" and set "Start" and "End" — or use "Set start to current time" and "Set end to current time" instead of typing numbers.
- Use "Jump to this time" to review a caption, and "Remove this caption" to delete one.
- Export with "Download as SRT" or "Download as WebVTT".
A practical example
Input
A two-minute clip with ten captions added while watching it.
Output
An SRT file with all ten captions and their start and end times, ready to upload alongside the clip or burn into it.
Limitations
- This produces a subtitle file and does not modify the video; to merge subtitles into the picture, use the Burn Subtitles tool.
- There is no automatic speech transcription; the text is typed by hand.
- There is no control over text styling or position; that is up to whichever player displays the file.
Privacy and processing
The video plays on your device and the text is written locally; neither the clip nor the captions is sent to any server.
Technical notes
- Both SRT and WebVTT are offered because platforms and players differ in what they accept; the content is the same and only the formatting differs.
Frequently Asked Questions
This tool helps you create an SRT or WebVTT caption file from scratch by typing it by hand, while the Subtitle Burner takes a ready caption file (like the one this tool creates) and permanently merges it into the video's picture.