Add Subtitles to Video Online
Create timed subtitle lines manually or import an existing SRT file. Edit the text and timing, preview every line, and burn subtitles into your video online.
Add Subtitles with an Online Editor
Add subtitle lines manually or import a prepared SRT file. You can edit each line's text, start time, and end time before processing the video.
The tool does not transcribe speech or translate dialogue automatically. It uses the subtitle text and timing you enter or import.
How to Add Subtitles to Video
Use Manual mode when you need to write and time each line yourself. If you already have a correctly timed SRT file, import it and review the lines against the video before export.
Step-by-step
- Upload or drag and drop a video file.
- Choose Manual or SRT file mode.
- Add lines manually or import a prepared .srt file.
- Review and edit the start time, end time, and text for each line.
- Adjust the shared font size and bottom offset.
- Preview the timing, process the video, and download the result.
What you can edit
- Subtitle text for every line.
- Start and end time using seconds or time notation.
- Shared subtitle font size.
- Shared distance from the bottom of the video.
- Imported SRT text and timing before processing.
Why Add Subtitles to a Video?
Subtitles provide a timed text version of spoken dialogue or other relevant audio. They help when viewers cannot hear the soundtrack, are watching without sound, or need written support to follow the content.
Accuracy matters more than subtitle volume. Check wording, names, punctuation, line breaks, and timing instead of assuming an imported file is ready to publish.
Popular use cases
- Caption dialogue in tutorials and interviews.
- Prepare videos that may be watched without sound.
- Correct the text or timing in an existing SRT file.
- Add speaker cues or relevant sound descriptions manually.
- Burn a supplied translation into a video.
Write for comfortable reading
Keep lines concise, break sentences at natural phrases, and leave enough time to read them. Avoid covering faces, existing graphics, or controls near the bottom edge of the frame.
Manual Subtitles or SRT Import?
Create subtitles manually
Best for short videos or a small number of lines. Enter the wording, then set the start and end time for each line while checking the preview.
Import an SRT file
Best when subtitle text and timestamps already exist. Importing saves re-entry work, but you should still check synchronization and correct any malformed or missing lines.
Burned-In Subtitles and Subtitle Files
This tool renders the visible subtitles into the processed video. Viewers do not need a separate subtitle file, but they also cannot switch the rendered subtitles off or change their language in a video player.
If you need selectable subtitle tracks, multiple languages, or a downloadable caption file, keep the original SRT separately and use a publishing platform or workflow that supports closed captions.
Add Subtitles, Add Text, or Use the Full Editor?
Add Subtitles
Create or import a sequence of timed dialogue and caption lines.
Add Text
Create positioned titles, labels, callouts, and other design text.
Add Audio
Add a separate music or audio track instead of changing the visible text.
Full Video Editor
Combine subtitles with clips, audio, graphics, transitions, and more complex edits.
Supported Video and Subtitle Formats
The uploader accepts common video inputs including MP4, MOV, AVI, WebM, and MKV. Subtitle import currently accepts SRT files. Browser preview and server processing support can vary by the codecs inside a video file.
Learn More About Video Subtitles
Frequently Asked Questions
Common questions about adding subtitles to videos.
Can I add subtitles to video online for free?
Yes. You can add subtitles directly in your browser without installing software.
Can I upload an SRT file?
Yes. Import a prepared .srt file to load its text and timestamps, then review or edit the lines before processing.
Can I create subtitles manually?
Yes. The editor allows you to type and sync subtitles manually.
Does the tool generate subtitles automatically?
No. It does not transcribe speech. Enter subtitle lines manually or import an existing SRT file.
What formats are supported?
Common video inputs include MP4, MOV, AVI, WebM, and MKV. Subtitle import currently supports SRT.
Can I edit subtitle timing?
Yes. You can adjust subtitle timing and text before exporting the video.
Will subtitles be embedded into the video?
Yes. They are rendered into the processed video, so viewers cannot turn them off like a selectable subtitle track.