They hold the same words at the same moments and differ in a few small, rigid ways that decide whether a player accepts the file. Below is the full comparison, and the real question underneath it: not which format is better, but which destination is being fed. Both come out of one transcript here.
Side by side
Four of these will break a file if you get them wrong. The rest describe what WebVTT can do and SubRip cannot.
| Feature | SubRip (.srt) | WebVTT (.vtt) |
|---|---|---|
| Opening line | None. The file starts at the first cue. | Must be the literal line WEBVTT, or the file is not valid. |
| Decimal separator | Comma: 00:00:04,120 | Dot: 00:00:04.120 |
| Cue numbering | Required, in sequence from 1. | Optional, and may be a word rather than a number. |
| Positioning | Not supported at all. | Cue settings for line, position, alignment and size. |
| Styling | None in the format itself. | Style blocks, plus inline markup within a cue. |
| Comments | No syntax for them. | NOTE blocks, ignored by players. |
| Naming a voice | Nothing in the format. | Markup exists for a named voice in a cue. |
| Read by browsers | No. The HTML5 track element does not take it. | Yes. It is the format that element was specified for. |
| Read by editors | Near universal across editing and playback software. | Supported in places, but far from everywhere. |
The practical answer
An embedded player loads its caption track through the HTML5 track element, which reads WebVTT. Hand it SubRip and captions usually fail quietly, with nothing to tell you why.
Import the .srt alongside the footage and burn it in or keep it separate. Specifics: Premiere Pro and DaVinci Resolve.
Where captions attach to a post rather than being burned into the picture, the upload field almost always expects SubRip. YouTube to SRT walks through one such flow.
Holding the wrong one? SRT to VTT and VTT to SRT set out what changes, and the converter overview covers the free tool. To lose the timings entirely, see SRT to TXT.
A note on what neither does
Neither format is a language. Converting changes punctuation and a header; it never touches the words. A file stays in whatever language it was spoken.
Neither format carries speakers by default. Speaker labels show in the transcript view on the page, while downloaded SRT and VTT files hold the words and their timings. WebVTT at least defines markup for a named voice, so you can add names in a text editor. Among the exports here, JSON is the one that records speaker information.
Both share the thing that matters most: they are plain text, openable and correctable in any editor.
Pricing
Every transcript exports SRT and WebVTT together, with TXT, DOCX, JSON and MD, and no format costs more than another. Recording length is what is billed: a pack from $4 opens the full transcript in full at any length, then 1,000 minutes at $8, 2,000 at $12 or 5,000 at $24, never expiring.
FAQ
Choose by destination, not by preference. Anything playing in a browser wants WebVTT. An editing timeline, a social upload or a desktop player wants SubRip. If you genuinely cannot tell where the file is going, SubRip is read by more software.
Neither format affects quality. Both are plain text holding the same words at the same times, so accuracy comes from the transcript behind them. WebVTT is more capable, which is not the same as more accurate.
Place and align a caption on screen, size it, style it through a style block, carry comments for whoever edits the file, and mark up text inside a cue including which voice is speaking. SubRip has syntax for none of that.
History rather than logic. SubRip came out of desktop software using a comma before the milliseconds, and WebVTT was specified later for the web with a dot. The two characters mean the same thing and a parser expecting one will reject the other.
In SubRip yes, in sequence from 1. WebVTT treats that line as an optional identifier, so it may be absent, or be a word rather than a number. Converting toward SubRip therefore has to add numbering that was never there.
Routinely, and it is the usual arrangement. A single transcript exports both, so the WebVTT goes to the embedded player on your site while the SubRip goes to the editor and the social upload of the same cut.
Not in a way you get automatically. Speaker labels show in the transcript view on the page, and downloaded SRT and VTT files carry the words and timings only. WebVTT at least has markup for a named voice if you choose to add it yourself.
There is no sign of it. WebVTT is the web standard and is where new player features land, but SubRip is embedded in decades of editing and playback software and remains the safest file to hand someone who has not told you what they use.
Paste a link or drop the media. Free preview, no signup, every format from the same job.