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SRT to VTT Converter

Convert SubRip Subtitles (.srt) to WebVTT (.vtt) format instantly. Ideal for web developers, content creators, and video editors.

Drag & Drop your .srt file here

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SRT Input

VTT Output

Why Use This Tool? ✅

HTML5 Compatible

Ensures subtitles work natively with the HTML5

element and modern web players.

Quick & Reliable

Accurately converts timestamps and text formatting in seconds, without data loss.

No Installation Required

A 100% browser-based tool. Nothing to download or install, just upload and convert.

For Creators & Developers

Perfect for preparing captions for websites, LMS platforms, and video hosts like Vimeo.

SRT vs. VTT: Understanding Modern Web Subtitles 字幕

Subtitles are essential for accessibility, engagement, and reaching a global audience. While many subtitle formats exist, SRT and VTT are two of the most important for digital video. This tool helps you bridge the gap between the classic SRT format and the modern web standard, VTT.

What is SRT (SubRip Subtitle)?

SRT is one of the oldest and most basic subtitle formats. Its simplicity is its strength, making it compatible with a vast range of offline video players and older software. An SRT file consists of four parts for each subtitle entry:

  1. A numeric counter identifying the subtitle block.
  2. The start and end timecodes, separated by -->. The key feature is that milliseconds are separated by a comma (e.g., 00:00:20,123).
  3. The subtitle text itself, which can span multiple lines.
  4. A blank line indicating the end of the subtitle entry.

While SRT is widely used, its lack of styling options and its timestamp format make it non-standard for the modern web.

What is VTT (Web Video Text Tracks)?

VTT is the W3C standard format for displaying timed text in connection with the HTML5

element. It was designed specifically for the web. It builds upon SRT's simplicity but adds critical features:

  • Mandatory Header: Every VTT file must start with the line WEBVTT.
  • Standard Timestamp: It uses a period as the millisecond separator (e.g., 00:00:20.123), which is the primary conversion this tool performs.
  • Styling & Positioning: VTT allows for rich styling directly within the file, enabling you to change text color, alignment, and position on the screen.
  • Metadata: It supports comments and other metadata that can be used by scripts.

Why Convert from SRT to VTT?

The primary reason to convert is compatibility. Modern web browsers that support the HTML5 element expect the VTT format. If you try to use an SRT file directly, it will likely fail to display. Converting to VTT ensures your captions and subtitles are accessible to all users on modern websites, learning management systems (LMS), and video platforms that have adopted web standards.

Our SRT to VTT Converter handles the essential changes for you: it adds the required WEBVTT header and correctly reformats all timestamps from the SRT comma-notation to the VTT period-notation, giving you a perfectly compliant file ready for the web.