🎬 VTT to SRT Converter

What is the VTT to SRT Converter?

WebVTT (Web Video Text Tracks, file extension .vtt) and SubRip (.srt) are the two most common plain-text subtitle formats, and on the surface they look almost identical. Both list a series of cues, where each cue has a start time, an arrow, an end time, and one or more lines of caption text. The differences are small but they matter: VTT begins the file with a WEBVTT header line, it can carry NOTE comments and STYLE or REGION blocks, and crucially it separates seconds from milliseconds with a dot (00:00:01.000). SRT uses none of those extra blocks, numbers every cue with a sequential integer, and separates milliseconds with a comma (00:00:01,000).

Converting VTT to SRT therefore comes down to a handful of mechanical edits. First you remove the WEBVTT header so the file does not start with an unexpected line. Then you strip out any NOTE, STYLE, and REGION blocks, because SRT has no concept of comments or styling and those lines would confuse a player. Next you walk through each remaining cue, give it a number starting at 1 and counting up, and replace the dot in both timestamps with a comma. The caption text itself is copied across unchanged. That is exactly the sequence this tool performs.

Why bother at all? Because the format you need depends on where the subtitles are going. WebVTT is the native format for the HTML5 video element and is what YouTube, Vimeo, and most browser players hand you when you download captions. SRT, on the other hand, is the lingua franca of desktop media players such as VLC, of editing suites such as Premiere Pro and DaVinci Resolve, and of platforms that ask you to upload a sidecar subtitle file. If a tool refuses your .vtt file, an SRT version almost always works, which is why converting VTT to SRT is one of the most frequently needed subtitle tasks.

A correct converter has to be careful about a few edge cases. VTT cues may include an optional id line above the timestamp, and the timestamp line itself can carry cue settings such as line:90% or align:start after the end time. SRT does not understand any of that, so a clean conversion keeps the id out of the output and trims the cue settings, leaving only the two timecodes and the text. This tool detects the timing line by looking for the --> arrow, ignores anything that is not a real cue, and renumbers from scratch so the output is always a valid, sequentially numbered SRT file.

Because the whole job is a text transform, there is no quality loss and nothing is sent over the network. You can convert a private interview transcript or an unreleased film script with the same confidence as a public lecture, since the bytes never leave your machine. The output appears in a text box you can copy with one click or save directly as a .srt file ready to drop next to your video.

When to use it

• Preparing captions downloaded from YouTube or Vimeo (which arrive as .vtt) for upload to a platform that only accepts .srt.
• Loading subtitles into VLC, MPV, or another desktop media player that reads SRT more reliably than VTT.
• Importing a transcript into Premiere Pro, DaVinci Resolve, or another editor whose subtitle import expects SRT.
• Cleaning a messy WebVTT export that contains NOTE comments or STYLE blocks down to a plain numbered SRT file.
• Standardising a folder of mixed subtitle files on a single format before archiving or handing them to a client.

How to use the VTT to SRT Converter

1. Open your .vtt file in any text editor, select all of the text, and copy it.
2. Paste the WebVTT text into the input box above, or press Load sample to see the expected format.
3. Press Convert to SRT. The tool removes the header, drops comment and style blocks, and renumbers the cues.
4. Check the SRT output box: each cue now has a number, a comma in the timestamps, and the original text.
5. Press Copy to grab the result, or Download .srt to save it as a file next to your video.

Formula & method

Worked examples

Key differences between WebVTT and SRT

What the converter does to each part of the file

Common mistakes to avoid

• Leaving the WEBVTT header in the file. If you only swap dots for commas but keep the WEBVTT line at the top, many SRT players treat the first cue as broken. The header must be removed, which this VTT to SRT converter does automatically.
• Forgetting to change the dot to a comma. The single most common reason an "SRT" file fails to load is timestamps that still use a dot before the milliseconds. SRT requires a comma (00:00:01,000), and a stray dot makes the timing unreadable.
• Keeping VTT cue settings after the timestamp. Settings such as line:90% or align:start are valid in WebVTT but meaningless in SRT. Left in place they can push a parser off the timing line, so they should be trimmed during conversion.
• Not renumbering the cues. SRT needs a sequential integer above every cue. WebVTT cues are often unnumbered or use text ids, so a correct conversion assigns fresh numbers starting at 1 rather than reusing whatever was there.
• Saving the output with the wrong extension or encoding. Save the result as a plain UTF-8 text file ending in .srt, not .txt. A mismatched extension means your player will not recognise it as a subtitle file even though the content is correct.

Glossary

WebVTT

Web Video Text Tracks, the .vtt subtitle format native to HTML5 video; it uses a WEBVTT header and a dot before the milliseconds.

SRT (SubRip)

A plain-text subtitle format with numbered cues and a comma before the milliseconds, read by most players and editors.

Cue

A single subtitle entry: a start time, an end time, and the lines of text shown on screen during that interval.

Timestamp

The start and end time of a cue, written as hours:minutes:seconds plus milliseconds, separated by the --> arrow.

NOTE block

A WebVTT comment starting with the word NOTE; it is for human readers and is stripped out when converting to SRT.

STYLE block

A WebVTT section that defines CSS-like styling for cues; SRT has no styling, so these blocks are removed.

Cue settings

Optional WebVTT directives such as line, position, and align that appear after the end time and are dropped for SRT.

Frequently asked questions