MSE Dump Tools

Media Source Extensions API Data Dump Tool

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!)

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
TGSAN
Daily installs
0
Total installs
333
Ratings
1 0 0
Version
1.6.8
Created
2021-01-17
Updated
2025-11-05
Size
11 KB
License
N/A
Applies to

Description

Donate

This plugin is used to download audio and video media data played through MSE for stream diagnostics and debugging purposes.

Dumped data is temporarily stored in memory. Please disable this plugin when not in use to prevent unlimited memory growth!

How it works

Mock MSE is used to allow Buffers to be dumped by the script before being passed back to the browser's built-in MediaSource.

About DRM data

DRM data using PlayReady or Widevine can be dumped, but it will not be decrypted (i.e., it cannot be played directly).