Youtube and Twitch channel name maximum character limit

Question

I am trying to find docs to figure out what the max limit is for YouTube and twitch channel names, but I am unable to find one.

This post suggests it's 20 but this post is like 3 years old. Plus the official YouTube API page doesn't list anything like that. Does anyone know what the limits are?

Answer 1

As of the YouTube V3 API, when creating a new channel, your channel name comes from your Google Account name:

First and last names support unicode/UTF-8 characters, with a maximum of 60 characters.

Name and password guidelines

The API docs only explicitly disclose the maximum number of characters for a video title (100) and a channel description (1000).

I don't believe this information is available for Twitch through their API.

Answer 2

Twitch

As per this reddit post, as well as this post on the Twitch Developer Forums:

• 4 to 25 characters
• letters, numbers, underscores

To quote the reddit answer, valid usernames seem to be defined by the folliwing regex:

^[a-zA-Z0-9_]{4,25}$

Note:

• Neither sources are official docs, but both seem reasonably credible
• Usernames on Twitch equal channel names but are different from Display Names