Some video editors and players only accept SRT, not WebVTT. Filemorph converts a VTT file to SRT on your iPhone, ready for wider compatibility.

WebVTT is the format browsers expect, but plenty of video editors, media players and upload tools still only accept SRT. Filemorph reads a .vtt file's captions and timing and rewrites them as a standard .srt file, locally on your device.
Filemorph converts VTT's timestamp syntax and numbering into SRT's format, keeping every caption's text and timing intact. The result is an .srt file that opens correctly in editors and players that do not read WebVTT.
In the app: Convert → To SRT.
SRT is the format most video editing software, media players and older upload forms expect, while WebVTT is built for the browser. Converting once means the same captions work in a desktop editor as well as a web player.
Yes. Unlike web converters that upload your files to a server, Filemorph converts every file locally using Apple's frameworks. Nothing leaves your device, and it works with no internet connection. This operation is part of Filemorph Pro ($29.99/year, 7-day free trial on monthly and annual plans).
No. Filemorph carries over every caption's start and end time exactly, only reformatting them into SRT's timestamp syntax.
Yes. Filemorph's SRT to VTT operation converts an SRT file into WebVTT format.
No. SRT has no equivalent for VTT's positioning and styling cues, so only the plain caption text and timing carry over.
On-device, no upload. Plus 300+ more file operations.
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