playlistduration

JavaScript Full Course for free 🌐

by Bro Code · published 2024-01-01

Total watch time

12h

at 1× speed · exactly 12 hours at 1×

1×12h
1.25×9h 36m
1.5×8h
1.75×6h 51m 26s
2×6h
Compare Open on YouTube JSON

Embed a badge

Show the length in a README or course description — it links back here and updates itself

Length: 12h

Markdown
[![Length: 12h](https://playlistduration.com/badge/video/lfmg-EJ8gm4.svg)](https://playlistduration.com/video/lfmg-EJ8gm4)
HTML
<a href="https://playlistduration.com/video/lfmg-EJ8gm4"><img src="https://playlistduration.com/badge/video/lfmg-EJ8gm4.svg" alt="Length: 12h" width="89" height="20"></a>

Add ?speed=1.5 to the image URL for the time at that speed, ?label=Course to change the left text, or ?style=flat-square for square corners.

Want the numbers themselves? GET https://playlistduration.com/api/v1/video/lfmg-EJ8gm4 returns them as JSON — free, no key. API docs →

Data from the YouTube Data API as of 2026-09-22 (cached).