How to convert SUB to SRT
1. Upload SUB
Select or drag and drop your SUB file into the converter.
2. Choose SRT
Select SRT as your output format. You can process multiple files at once.
3. Download
Click convert and download your new SRT file instantly.
Format Details
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.
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.
Frequently Asked Questions
How do I convert SUB to SRT?
Upload your SUB file on Convertek, select SRT as the output format, then click Convert. Your SRT file will be ready to download instantly.
Is the SUB to SRT converter free?
Yes. Converting SUB to SRT 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 SUB and SRT?
SUB and SRT are different file formats with distinct use cases. Converting between them lets you use your file in software or workflows that require the SRT format.