VTT Subtitle Viewer

Upload the .vtt file or paste its contents into this VTT viewer. Every cue is listed with its start time, end time, duration and text, and you can search or filter the list. A VTT file is plain text, so you can also open it in any text editor such as Notepad, TextEdit or VS Code, but the viewer makes the timestamps and dialogue much easier to read.

A VTT file is a WebVTT (Web Video Text Tracks) file. It stores subtitles, captions or other timed text for a video or audio track. It starts with the line WEBVTT and then lists cues, each with a start time, an end time and the text to show. It is the standard subtitle format for HTML5 video.

Both systems treat a .vtt file as plain text. Right-click it and open it with Notepad (Windows) or TextEdit (Mac), or use a code editor. To see it as an organized list of cues, upload it to this viewer instead. Media players such as VLC can load a VTT file as subtitles alongside a video.

No. The file is read and processed entirely in your browser. Nothing is sent over the network, which makes the tool suitable for private or unreleased content.

Both are plain-text subtitle formats. SRT numbers each cue and writes timestamps like 00:00:01,000 with a comma before the milliseconds. WebVTT starts with a WEBVTT header, uses a period (00:00:01.000), and supports extras such as cue settings, styling, comments and speaker voice tags. You can export your cues as SRT from this tool, and if the converted subtitles need their timing adjusted, the Subtitle Time Shifter can shift them into sync.

Load the file, scroll to the Export section and choose a format. Text gives a transcript, with or without timestamps and speaker names. SRT gives numbered subtitles. CSV gives a spreadsheet with one row per cue. JSON gives structured data. Copy the result or download it as a file.

Yes. Type in the search box to filter cues and highlight matches. You can turn on match case, whole word or regular expression matching, and choose whether to search only the subtitle text or also speakers, timestamps and markup.

WebVTT timestamps must look like 00:01:02.500 or 01:02.500, with two-digit minutes and seconds, and minutes and seconds no higher than 59. Common mistakes are a missing leading zero, a missing millisecond part, or letters in the time. The problem list shows the exact line number so you can fix it. Cues with unreadable timestamps are skipped.

Reading speed is the number of characters shown per second. If it is too high, viewers cannot finish reading before the cue disappears. The viewer also flags cues that are on screen for too short or too long a time, have too many lines or very long lines, overlap another cue, or start before the previous one. The limits follow common subtitle guidelines and are editable in the quality thresholds section.

A voice tag such as <v Alex>Hello there.</v> marks who is speaking. The viewer reads these tags, shows the speaker on each cue, lets you filter by speaker, and lists per-speaker totals. When you export text or SRT you can choose whether to include the names.

Yes, in part. Use the shift timestamps option in the Export section with a positive number of seconds to delay every cue, or a negative number to show them earlier, then download the corrected file. The shift applies to the exported copy, and cues that would end before zero are left out.

No. It is a viewer and analyzer for the subtitle file itself. To jump to a point in your video, enter a time in the go-to-time field and the matching cue is highlighted in the list.

The file may be empty, may not be WebVTT, or its timing lines may be malformed. Cues need a line like 00:00:01.000 --> 00:00:03.000 followed by text. Check that the file is a subtitle file and not a binary or video file, and read the problem list for the line that needs attention.

Uploads are limited to 25 MB, which is far larger than typical subtitle files. Very large files are shown in pages of cues, and long export previews are shortened on screen, though copying or downloading always gives the full output.

Use the "Download sample file" button in the input section above to download a sample VTT file you can open in this viewer or any text editor. It contains three short cues with valid 00:00:01.000 --> 00:00:03.500 style timestamps, so it is a good starting point for testing uploads, search, and SRT or CSV export.