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SUB Converter

Convert SUB File (.sub) files online instantly. No signup, no watermarks. Drag & drop your file and download in seconds.

Convert SUB to…

4 output formats available for .sub files

SUB → SRTSUB → VTTSUB → ASSSUB → SSA

Convert … to SUB

4 input formats can be converted to .sub

SRT → SUBVTT → SUBASS → SUBSSA → SUB

About SUB File

SUB is a file format in the Subtitle category.

SUB Format Details →Browse Subtitle Formats →

Frequently Asked Questions

How do I convert SUB files?▼

Upload your .sub file to CocoConvert, select your desired output format, and click Convert. Your file is processed on secure servers and ready to download in seconds. No software installation needed.

How much does SUB conversion cost?▼

CocoConvert offers SUB conversion with no signup required. You get 5 files per hour (up to 250 MB each) on the starter tier. Pro users get 100 files per hour and 5 GB per file.

What formats can I convert SUB to?▼

CocoConvert supports converting SUB to 4 different formats including SRT, VTT, ASS, SSA.

Are my files secure?▼

Yes. Files are encrypted in transit via TLS, processed on isolated servers in Germany, never analysed or shared, and permanently deleted within 24 hours.