.vtt.sub

Convert VTT to SUB

Free, fast, and secure online conversion from VTT to SUB. No watermarks, no registration required.

How to convert VTT to SUB

1. Upload VTT

Select or drag and drop your VTT file into the converter.

2. Choose SUB

Select SUB as your output format. You can process multiple files at once.

3. Download

Click convert and download your new SUB file instantly.

Format Details

.vtt

VTT

VTT (WebVTT, Web Video Text Tracks) is the W3C-standard subtitle and caption format for HTML5 video, designed to work natively in web browsers without plugins. It supports text cues with precise timing, multiple text tracks, and CSS-based styling for rich caption presentation. VTT is the required format for closed captions on web video platforms, streaming services, and accessibility-compliant applications.

subtitle
.sub

SUB

SUB (MicroDVD Subtitle) is a subtitle format that stores timing as video frame numbers rather than absolute timestamps, making it intrinsically frame-rate dependent. Each subtitle entry uses curly-brace notation for frame numbers and supports basic inline formatting. SUB is a legacy format from the DVD ripping era that is still supported by major media players, though SRT and VTT have largely replaced it for new subtitle content.

subtitle

Frequently Asked Questions

How do I convert VTT to SUB?

Upload your VTT file on Convertek, select SUB as the output format, then click Convert. Your SUB file will be ready to download instantly.

Is the VTT to SUB converter free?

Yes. Converting VTT to SUB on Convertek is completely free with no watermarks. Fair upload limits apply (typically 30 MB per file).

Is my file kept after conversion?

No. Files are processed temporarily and not stored permanently. Converted downloads are available only in your browser session.

What is the difference between VTT and SUB?

VTT and SUB are different file formats with distinct use cases. Converting between them lets you use your file in software or workflows that require the SUB format.