Format family
Subtitle format family — SRT, VTT, ASS & more
Subtitles are structured text with timing. SRT and VTT cover most players; ASS/SSA add styling; SBV is common for YouTube. Format Convertly normalizes cues in the browser — no upload.
Interchange & players
Everyday caption formats for editors and HTML5 video.
SRT is the most common subtitle exchange format: numbered cues with start/end times. Players and editors everywhere understand it. Convert to VTT for native HTML5 video tracks on the web.
Format hub →
VTT adds web-friendly captions with optional styling cues for browsers. Use it for <track> elements; keep SRT around when collaborating with desktop subtitle tools that still default to SubRip.
Format hub →
SBV (SubViewer-style) pairs a start,end timestamp line with dialogue lines underneath. Convert SBV to SRT for wider player support, or start from SRT when exporting for YouTube.
Format hub →
Styled / advanced
SubStation Alpha variants used in anime and fan-sub workflows.
ASS is popular for fan-subs and soft-sub releases. Dialogue lines carry start/end times plus style names. Format Convertly maps ASS dialogue to SRT and can build a Default-styled ASS from SRT.
Format hub →
SSA uses ScriptType v4.00 and a slightly different Styles section than ASS. Cue text and timing still convert cleanly to SRT/VTT on Format Convertly.
Format hub →