Program for creating an opening tree - Chess Forums

What's a program I can use for recording variations where the moves are put in a tree format? What I'm looking for is something similar to another site's "study" only with all the lines and sub lines with same-size text in a tree format like in the book MCO-15.

Grandmaster Guide to Learn and Improve Chess Tactics

How to create your opening repertoire with Chess Base - an easy way!

Program for creating an opening tree - Chess Forums

Let's write a Chess GUI from scratch in Java - Chess Forums

Understanding the numbers and statistics in a chess opening tree (ChessBase Tip #0033)

Scratch Chess Engine - Game of Kings - Discuss Scratch

Chess Openings: The Branches of the Tree

Designing a Chess Board. Working on the cutouts for my pieces, but how do I get the cutout for the Knight like I have done my pawns and rooks? : r/Fusion360

My month-long quest to become a chess master from scratch, by Max Deutsch