---
title: "[Cool tool] : Visustin - Visually graph your code"
url: "https://osherove.com/blog/2003/10/6/cool-tool-visustin-visually-graph-your-code.md"
canonical: "https://osherove.com/blog/2003/10/6/cool-tool-visustin-visually-graph-your-code.html"
published: "2003-10-06T19:31:00"
updated: "2003-10-06T19:31:00"
tags: ["Cool Tools"]
author: "Roy Osherove"
description: "I'm currently in the process of reviewing and understanding a bunch of legacy VB 6.0 code. One of the trickiest parts of reviewing such things is getting the “gist” of what's going on on a specific method, or…"
usage: "Licensed under CC BY 4.0 — reuse, quote and adapt with attribution (Roy Osherove, link to the original page)."
license: "https://creativecommons.org/licenses/by/4.0/"
---

# \[Cool tool\] : Visustin - Visually graph your code

By Roy Osherove October 6, 2003 In [Cool Tools](https://osherove.com/blog/category/cool-tools)

**Historical article** · Originally published October 6, 2003; technical details may be outdated.

I'm currently in the process of reviewing and understanding a bunch of legacy VB 6.0 code. One of the trickiest parts of reviewing such things is getting the “gist” of what's going on on a specific method, or understanding the time-line of method calls in a specific business process.

I discovered a small tool (not free) called [Visustin](http://www.aivosto.com/visustin.html) that allows you to paste in code from VB,C#,VB.Net,Java,C++,COBOL,Pascal and Delphi, and it will display a visual call graph of what's going on. It's very cool and it really helps in understating some of those long-running, hard to decipher methods...

The tool is not free, and the installer is that good ol' vb installer program from vb 6.0, but the demo version hold enough functionality to let me use it as is. It just doesn't allow you to print or save the graph once it's created, which is cool for me, as I use it mainly as a quick ad-hoc “How does this method work” kind of queries. Coolness achieved. I wonder if there are more tools like this.

## More in Cool Tools

[All posts in Cool Tools](https://osherove.com/blog/category/cool-tools)

- Oct 8, 2003

    ### [Why I like SharpReader better](https://osherove.com/blog/2003/10/8/why-i-like-sharpreader-better.html)

- Oct 6, 2003

    ### [.Net Rocks closure, suggestion, and discovering Salamander. Oh my!](https://osherove.com/blog/2003/10/6/net-rocks-closure-suggestion-and-discovering-salamander-oh-m.html)

- Oct 4, 2003

    ### [AmazReplacer- revamped](https://osherove.com/blog/2003/10/4/amazreplacer-revamped.html)

- Oct 1, 2003

    ### [Visual Basic Resource Kit (C# developers are not banned!)](https://osherove.com/blog/2003/10/1/visual-basic-resource-kit-c-developers-are-not-banned.html)


---

## About the author

**Roy Osherove**: Senior Solutions Architect at AWS working on AI for production and AI-driven development; author of The Art of Unit Testing and Elastic Leadership, with about 20 years of consulting and training on unit testing, TDD, team leadership and continuous delivery.

### Sites

- [RobotPaper](https://robotpaper.ai/): This blog: AI patterns and anti-patterns, AI and coding agents, and engineering leadership.
- [osherove.com](https://osherove.com): Roy's personal site. Author of The Art of Unit Testing and Elastic Leadership; consulting and training on unit testing, TDD, team leadership and continuous delivery, plus about 20 years of blog posts.
- [The Art of Unit Testing](https://www.artofunittesting.com): The Art of Unit Testing, 3rd Edition (Manning): readable, maintainable, trustworthy unit tests, plus TDD workshops in C#, JavaScript, Java and Kotlin.
- [5whys.com](https://www.5whys.com): Roy's writing on software team leadership: self-organizing teams, surviving chaos, learning mode and the Elastic Leadership model.
- [Pipeline Driven](https://pipelinedriven.org): Continuous delivery and DevOps practices: build patterns, pipeline-friendly testing, DevOps metrics and enterprise DevOps.
- [Elastic Leadership](https://www.elasticleadership.com): Elastic Leadership, Roy's framework for software team leaders (survival, learning and self-organizing modes).

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### License

Licensed under CC BY 4.0 — reuse, quote and adapt with attribution (Roy Osherove, link to the original page). License: https://creativecommons.org/licenses/by/4.0/