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Subtitle converter.
Drop files, pick the target format, done. Timecodes are carried over to the millisecond and <i>/<b> tags are mapped between formats (ASS overrides ↔ HTML). Make an SRT for YouTube, a VTT for web players and an SMI for Korean players from the same file.
Drop subtitle files here
or click to choose · SRT, VTT, SBV, ASS/SSA, SMI · up to 20 files
Need this file in another language? Translate it into 36 languages with the timing intact. First file free.
TranslateQuestions
- Does converting SMI to SRT break non-Latin text?
- No. The file is read and written as UTF-8 in your browser. If the source is in a legacy encoding and looks garbled, re-save it as UTF-8 once and upload again.
- What happens to ASS styles and positions?
- Going to SRT/VTT, position tags like {\an8} are dropped and only italic/bold survive as <i>/<b>. SRT → ASS creates a Default style you can edit in Aegisub.
- Is the timing preserved?
- To the millisecond. ASS uses centiseconds, so rounding of up to 10 ms can occur in that format.