Overview

Some of the alternatives to the Raptor flowchart tool are as follows:

Flowgorithm

Flowgorithm is a free flowchart tool that helps us to create simple flowcharts and programs. The tool supports many programming languages. The tool supports localization. Flowcharts can be created in localized languages.

http://www.flowgorithm.org/

Sample Flowchart

Flowgorithm Tutorial on this website :

https://www.testingdocs.com/flowgorithm-flowchart-tutorial/

Commercial Flowchart Tools

Lucid Chart

Lucid Chart is a visual collaboration suite for diagramming. The Lucid chart’s cloud-based platform makes it easy and simple to start creating flowcharts. We can create flowcharts on any machine irrespective of the operating system, browser, etc.

Official website: https://www.lucidchart.com

Visual Paradigm

There are several editions of the tool based on the user needs and the features that they support.

Community
Modeler
Standard
Professional
Enterprize

Official website: https://www.visual-paradigm.com/

Edraw

EDraw is a flowchart desktop drawing tool that allows us to create flowcharts quickly. All the EDraw products can be found in the download center page.

Official website:

https://www.edrawsoft.com/