Create WebVTT captions for browser video
Use TXT to VTT when the final destination is a website, an HTML5 player, an online course, or a product demo embedded in a browser. The page takes plain text and creates a WEBVTT file with browser-friendly timestamp formatting.
VTT is close to SRT in spirit, but web players expect a different file header and dot milliseconds. This converter handles those format details while leaving the caption text editable before download.
Match caption pacing to web playback
Web captions often appear on smaller screens, inside responsive players, or alongside interface controls. Use shorter caption chunks for UI demos and mobile-first videos, and avoid long lines that compete with the page itself.
If you are preparing captions for documentation or an LMS, preview the VTT in the same player your audience will use. Browser players can differ in font size, line wrapping, and cue positioning, so readability should be checked in context.
When VTT is better than SRT
Choose VTT when the video lives on the web and the player expects a track file. VTT can also support cue settings and metadata in advanced workflows, although this page focuses on clean caption text and timing rather than styling.
If you are uploading to a general video platform and are unsure which format to use, SRT is often the safer first export. You can always convert SRT to VTT later when a browser workflow specifically requires WebVTT.
Inspect the WEBVTT output
A VTT file should begin with WEBVTT, followed by cue timing lines that use periods for milliseconds. The output box lets you check the header, timing, and text before saving the file.
After downloading, attach the .vtt file to your video element or upload it to the platform that needs WebVTT. Keep the text source around if you plan to create alternative languages or shorter mobile captions later.