Free SRT ↔ VTT Converter
Convert subtitles between SRT and WebVTT in both directions. The file is validated and previewed before you download it.
Free, no signup. Anything the target format can't store is listed before conversion.
Validates and previews before converting.
Input (SRT)
Output (VTT)
Preview
| # | Start | End | Text |
|---|---|---|---|
| No cues yet. | |||
How to convert SRT to VTT, or VTT to SRT
- Select the conversion direction and paste or upload your subtitles.
- Review the cue preview and any validation errors. For VTT to SRT, acknowledge any styles, positioning or other information that the target format cannot preserve.
- Download the converted file and check it in the destination player. For Cubix caption import, choose SRT.
Text and supported timing are preserved. SRT does not carry WebVTT styles, regions or cue positioning; conversion can lose those features.
Input is sent to Cubix's server for processing. The input limit is 2 MiB. Use sample data when trying the tool.
Opens editor Home. Upload your video and add or import captions there; your subtitle file is not transferred automatically.
Both Directions
Convert SRT to WebVTT or WebVTT to SRT, with the direction picked automatically from the file extension.
Validated First
Malformed timestamps and missing timing lines are reported with line numbers before any output is made.
No Silent Loss
Cue settings, voice tags, styles, and notes that SRT can't store are listed and need your acknowledgement.
Level up your editing workflow.
Get weekly insights on video editing, AI workflows, and creator growth straight to your inbox.
Frequently Asked Questions
What's the difference between SRT and VTT?
SRT is the most widely supported subtitle format. WebVTT (.vtt) is the web standard used by HTML5 video and adds features like cue positioning, styling, and voice tags.
Will I lose anything converting VTT to SRT?
Possibly. SRT can't store WebVTT cue settings, voice tags, STYLE, REGION, or NOTE blocks. The converter lists exactly what will be dropped and only produces output after you acknowledge it.
What happens to SRT formatting in VTT?
<b>, <i>, and <u> tags are kept. {b}/{i}/{u} tags are converted to <b>/<i>/<u>. <font> formatting and {\an8}-style override tags are not supported by WebVTT and are listed as dropped.
Which line endings does it use?
By default SRT output uses CRLF (widest player support) and VTT uses LF. You can force LF or CRLF, and optionally add a UTF-8 BOM to the download.
Is the converter free?
Yes. Convert SRT and VTT subtitle files online for free with no signup.
Related subtitle tools
Check, shift, add, and remove subtitles.