How to convert SRT to SUB
1. Upload SRT
Select or drag and drop your SRT 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
SRT
SRT (SubRip Subtitle) is the most widely used and compatible subtitle format on the internet, originating from the SubRip DVD ripping software. It stores subtitles as sequentially numbered blocks, each containing a start/end timestamp and one or more lines of display text. SRT files are plain text, easily editable with any text editor, and supported by virtually every media player, video editor, and streaming platform that handles subtitles.
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.
Frequently Asked Questions
How do I convert SRT to SUB?
Upload your SRT file on Convertek, select SUB as the output format, then click Convert. Your SUB file will be ready to download instantly.
Is the SRT to SUB converter free?
Yes. Converting SRT 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 SRT and SUB?
SRT 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.