☰

Universal Subtitle Overlay (Responsive)

Load .srt or .vtt subtitles on any online video. Works on desktop, laptop, tablet, and mobile. Drag, sync, resize, overlay subtitles.

How to install

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

How to install

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

Author
Govind-Rajulu
Daily installs
0
Total installs
2
Ratings
0 0 0
Version
20.0
Created
2025-11-16
Updated
2025-11-16
Size
11.8 KB
License
MIT
Applies to
All sites

Universal Subtitle Overlay

Load your own SRT or VTT subtitles onto any online video, on any website.

This script adds a clean, draggable subtitle overlay that works even when the website does not support or provide subtitles.

Features

  • Load SRT or VTT subtitle files from your device
  • Drag subtitles anywhere on the video
  • Automatic sizing based on video width
  • Manual font size & weight options
  • Subtitle sync offset (fix early/late subtitles)
  • Vertical position control
  • Show / Hide toggle
  • Subtitles saved between sessions
  • Works on any standard HTML5 video

How to Use

  1. Click the “Load Subtitle” button that appears in the bottom-right corner.
  2. Select an .srt or .vtt file.
  3. Play the video — subtitles will appear automatically.
  4. Drag the subtitle box to reposition it anytime.

Settings (sync, size, position) are available from the Userscript menu.

Notes

  • Subtitles only appear when a visible video is on the screen.
  • The script works best with standard HTML5 video elements.
  • All your settings and your last subtitle file are saved automatically.
  • You have to manually add subtitles since the script doesn't rely on online downloads.

No data is collected or sent anywhere.

Credits

Created to make custom subtitles available everywhere.