Kristian Widjaja’s Blog

25 May, 2009

How to fix aspect ratios on YouTube

Posted by: Kristian In: How To ...|Technology

Today I have discovered a cool feature in YouTube that allows you to fix aspect ratios of uploaded videos without having to re-upload the video. You can enter “yt:” formatting tags in the YouTube tag field of any video. With these “yt:” formatting tags, you can remove black borders, fix incorrect aspect ratios, and even default the YouTube quality to HQ.
The commands used for these respectively are:


See the following video for examples on how these work.

I used this technique on Eric and Cynthia’s wedding video, which originally had an incorrect 4:3 aspect ratio, and now the video plays back correctly at 16:9.


2 Responses to "How to fix aspect ratios on YouTube"

1 | ranson

May 25th, 2009 at 8:38 pm


how can I use multiple codes on one video? Thanks

2 | Kristian

May 25th, 2009 at 9:43 pm


Just separate the formatting by spaces. I.E. yt:crop=16:9 yt:quality=high

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My name is Kristian Widjaja and I am married to my beautiful wife, Yuliany Widjaja. We have two kids who keep us busy at all times!

I have started this blog, primarily to jot down random thoughts that I have, as well as to document some interesting projects that I have done around the home.