Turn an SRT file into the WebVTT format a web player needs
Processed in your browser. Nothing is uploaded. Updated on 24 Oct 2026.Browsers will not load an SRT file in a video element: the HTML track tag reads WebVTT, which is the same cue list with a header line and a dot before the milliseconds. Drop the SRT here and the VTT comes back ready to sit beside your video, with the cue text untouched.
Press Choose a subtitle file and pick your .srt file, or paste its text into the box.
Save as is already set to VTT, the WebVTT format a web video player reads.
Check the line that says how many subtitles were read from the SRT file.
Press Download to save the .vtt file next to your video, or Copy to take the text.
Subtitle Converter reads an SRT or WebVTT file, shows you what is in it, and writes it back in either format. It also moves the timing of every cue by an amount you type, which is the fix for subtitles that run early or late against the video.
The two formats are nearly the same file. Both are a list of cues, each with a start time, an end time and one or two lines of text. SRT separates the seconds from the milliseconds with a comma and numbers its cues; WebVTT uses a dot, begins with a WEBVTT line, and may name a cue or give it positioning such as line:90% align:center. Those small differences are enough to stop a player loading the wrong one, which is why converting is usually all that is needed. A browser playing video with a track tag requires WebVTT; VLC, Premiere and most television players expect SRT.
Timing is the other half. A subtitle file cut for a different release of the same film is often correct in pace but wrong by a fixed number of seconds. Play one line, see how late or early it is, and shift the whole file by that much. Every cue keeps its own length, so the rhythm of the dialogue is unchanged, and nothing is pushed before the start of the video.
The rest of the article, and all 6 questions about Subtitle Converter, are on the Subtitle Converter page.
Drop the SRT on this page and choose VTT. The cue list is read, the WEBVTT header is added, and the comma before the milliseconds becomes a dot, which is the difference browsers care about. Download the result and point your video's track tag at it. Nothing is uploaded.
Both list cues with a start time, an end time and the text. SRT numbers each cue and writes 00:00:01,500; WebVTT starts with a WEBVTT line, writes 00:00:01.500, and can name a cue or position it on screen. Web players read VTT; desktop players usually read SRT.
No. The file is read, converted and saved entirely in your browser on your own device, so an unreleased script or an unpublished episode never leaves your computer. There is no account, no upload and nothing on our side to delete afterwards.
SRT has nowhere to store it, so settings such as line:90% align:center are dropped rather than written into the file where a player would show them as text. The words, the line breaks and the timings are kept exactly as they were.
Still stuck? Ask about Subtitle Converter and anybody who knows can answer. No account needed.
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