Fix a misheard word without re-syncing. Re-flow your lines without losing an hour of corrections. Style captions against a preview that matches what actually gets rendered.
Your video on the left, your lines in the middle, your styling on the right.
Most video editors treat subtitles as a checkbox buried four menus deep. suubbs treats them as the entire product, which mostly means the tools you need are visible and the ones you do not need are absent.
Every transcript has three bad words in it — a name, a piece of jargon, something swallowed by a passing bus. Click the word, type the right one, and the timing stays exactly where it was. There is no dialog and no re-sync step.
Because every word carries its own timestamp and the cue text is derived from those words rather than stored beside them, lines can be re-flowed at any point without throwing away your corrections. Change your mind about line length after an hour of editing and you keep the hour.
Font, size, colour, letter spacing, background opacity, position and word-level highlighting all live in the document rather than in a stylesheet, which is what lets the preview and the exported ASS agree. Export SubRip or WebVTT and all of it is discarded — those formats carry no styling whatsoever, which is a fact about the formats and not a limitation anyone can code around.
Including the two things people are most often surprised by.
Yes. Bring in an existing SRT or VTT and edit, restyle and re-export it. You do not have to transcribe from scratch to use the editor.
No. Words carry their own timestamps and the cue text is derived from them, so retyping a word keeps its position on the timeline.
Yes. Re-segmenting reflows lines against reading-speed and line-length rules without discarding the corrections you have already made.
For ASS, yes — the caption style lives in the document rather than in CSS, and it is the single source for both the preview and the export, so what you see is what libass burns in. SRT and VTT carry no styling at all, by design of those formats.
Not yet. Export a styled .ass file and ffmpeg burns it into the picture in one command. A one-click burn-in is not in the app today.
The Mac app is comfortable with long files. The cue list is not virtualised yet, so a multi-hour transcript with thousands of cues will feel heavy to scroll.
[click the word, type the word]