Free online SUB-to-ASS converter — upload a SUB file and download a ASS. Fast, private, no signup.
Drop your SUB file into the converter above — we auto-detect the real format from its bytes, convert it, and give you a ASS to download. No software to install.
Yes. Convert SUB to ASS for free right in your browser, with no account needed to get started.
Your file is transferred over an encrypted connection and anonymous uploads are temporary. You can also view and strip metadata (location, device, author) before you download.
MicroDVD — frame-based subtitle text ({start}{end} markers); convert-from only. Advanced SubStation Alpha — styled, positioned subtitles (fonts, karaoke).
Convert SUB to: SRT · VTT · SSA