by Madalina Dinita

Madalina has been a Windows fan ever since she got her hands on her first Windows XP computer. She is interested in all things technology, especially emerging technologies... read more

Updated on February 24, 2021

  • ER diagram software is heavily used in enterprises because it simplifies work.
  • If software for ER diagrams is what you seek, we've selected the best free choices below.
  • There are a couple of open-source ER software that are highly customizable.
  • You will also find online software to draw ER diagrams that doesn't require download.


To fix various PC problems, we recommend Restoro PC Repair Tool:
This software will repair common computer errors, protect you from file loss, malware, hardware failure and optimize your PC for maximum performance. Fix PC issues and remove viruses now in 3 easy steps:

  1. Download Restoro PC Repair Tool that comes with Patented Technologies (patent available here).
  2. Click Start Scan to find Windows issues that could be causing PC problems.
  3. Click Repair All to fix issues affecting your computer's security and performance
  • Restoro has been downloaded by 0 readers this month.

No matter what role you cover in an enterprise, if it regards intellectual work, at some point, your boss could ask you to design an ER diagram for the company.

If you want to be ready for this task, it’s important to have this article saved somewhere on your laptop. In this guide, we’ll show what software solutions you can use to create ER diagrams.

Before listing the tools, it’s important to offer you some background information.

What is an ER Diagram? According to the definition within the LucidChart website, an ER Diagram is:

a type of flowchart that illustrates how “entities” such as people, objects or concepts relate to each other within a system.

Those specific flowcharts can have several sets of symbols. They are also useful to manage and show databases in many fields from research to software engineering.

Now that we have provided you with a definition, let’s dive right in and describe the different software solutions available on the market.

Adobe Illustrator

Adobe Illustrator is an excellent tool for creating ER diagrams although most users utilize it to create icons, logos, illustrators, and other graphic design elements.

Creating an ER diagram is Illustrator is as simple as a walk in the park. All you need to do is draw some squares or other shapes that will serve as blocks of information.

You can then use straight lines and arrows to connect these blocks of information and describe the relationship between them. To insert shapes, you can use the built-in Shape tools.

To highlight particular blocks of information, you can also color them. Even if you haven’t used Illustrator before, you’ll be able to sketch your ER diagram within minutes thanks to the intuitive UI.

The best part is that you can take your ER diagrams to the next level once you’ve become familiar with Illustrator. You can use the built-in editing tools to play with colors, textures, insert icons, and much more.

Adobe Illustrator

Use Adobe illustrator to create flowcharts and ER diagrams for your workplace and business.


If you want to make free charts online, you can also choose to use the famous Canva software.

This free online service (also available as an app for Android and iOS devices), allows to create lots of graphic works in an extremely easy and fast way.

To use it, simply register, select one of the ready-to-use templates and modify it according to preference.

Once arrived there, select one of the options in the box First time on Canva? Subscribe! to specify the personal or professional reason to use the service.

The site will require you to register via an e-mail address, Facebook account, or Google account, pressing the appropriate buttons.

When registered, start creating the ER Diagram or organization chart. At this point, you have to select one of the templates listed under the Canva Layout entry.

You should also modify the organization chart replacing the example text with the names and positions of the people that make up the team.

If other graphics elements need to be added (eg shapes, logos, illustrations, etc.), text or upload new images, you can pick the options on the left sidebar.

When the work is finished, download the project by pressing the Download button at the top right, select the format in which to save the output file and press again on the Download button to complete the procedure.

Try Canva free


If you are looking for programs to create amazing free charts and ER diagrams, you should consider trying LibreOffice. This is one of the best free and open-source alternatives to Microsoft Office.

This software allows also you to create organizational charts but not for free. It includes applications for Word processing, spreadsheet processing, database management, and drawing.

The application designed for drawing – LibreOfficeDraw – allows you to create diagrams, organization charts, and other graphs in an easy way.

The entire LibreOffice suite is available for all major operating systems: Windows, macOS, and Linux.

To download LibreOffice on Windows, you should connect to the program’s website, press the green button to download the tool, and wait for the installation to complete.

If you need to add lines and/or arrows, to connect the various elements of the organization chart, you can press the appropriate items always from the sidebar.

To add text, instead, you can select one of the shapes drawn and type the text desired, to insert it. Once the work is completed, click on the Save item in the File menu to save the changes made.

Some PC issues are hard to tackle, especially when it comes to corrupted repositories or missing Windows files. If you are having troubles fixing an error, your system may be partially broken.
We recommend installing Restoro, a tool that will scan your machine and identify what the fault is.
Click here to download and start repairing.

⇒ Download LibreOffice

Xmind ZEN

Xmind ZEN is one of the most complete solutions for creating ER diagrams, organization charts, concept maps, and other types of graphs. It is characterized by a very attractive and user-friendly user interface.

It also includes a wide range of pre-set templates from which you can start to create your own graphics. So, it is very intuitive even for less experienced users.

The program is available in various versions: the free version has no major limitations and allows the user to share projects online. It is important to highlight that the software provider applies a watermark to the work.

You can remove this watermark by subscribing to the Premium version. The software is available for Windows, macOS, and Linux and in the form of apps for Android and iOS.

To create free organization charts with Xmind, you must first download the program on a computer. Therefore, you should connect to the online software page and press the Free Download button.

When the download is complete, follow the steps and install the software, then you’re good to go. Thankfully, the software’s interface is easy to follow for anyone.

Note: It is important to remind that the trial version of the program applies a watermark to the works. This watermark is removable only by subscribing to the Premium version.

⇒ Download Xmind Zen

Diagram Designer

As its name suggests, Diagram Designer is a program that allows to create ER diagrams, organization charts and other graphs. It does that through a “spartan” user interface but rather simple to use.

It includes a wide range of pre-set templates for shapes and arrows, allowing users to create various types of diagrams and graphs very quickly. The program is free and perfectly compatible with Windows.

To download Diagram Designer, go to the software homepage. Then, press the link Download installer and, in the page that opens, click on the Diagram Designer Windows Installer link. The latter is located under the heading “Download”.

When the download is complete, open the .msi file that appears, press the Next button twice in a row. To end the procedure, press the Install button and, then, Yes and Finish.

At this point, you have only to shape the ER diagram, “fishing” the various elements you want to compose from the menu on the right.

Keep the left mouse button pressed on one of the objects in question (shapes, connectors, etc.), drag it to the work area and change its position and size using the appropriate indicators.

To edit the text in one of the organization chart nodes, double-click on it, type the desired text in the Insert text field in the object and press the OK button to apply the changes made.

When the work is finished, open the File menu and select the Save As entry from the menu that opens. This will allow you to save the document in the format and position you prefer.

⇒ Download Diagram Designer


If until now the software described have been all downloadable, now is the time to show several alternative online software. Lucidchart is a simple and well-designed online platform for ER Diagrams.

On the web platform, you can learn what an ER Diagram is, how it is created, its history, and its logic. Besides, it is possible to create a well-done diagram by just subscribing for free.

There is also a premium version that can guarantee a more complete experience that includes extra premium features.

⇒ Download Lucidchart


Another excellent online option is Smartdraw. This program is easy to use and really comprehensive, not requiring any setup to use. You can simply choose from over 70 templates.

Besides that, the software also has integration with most Google products, so you can easily tie your work to your excel and other software that uses such file formats.

Take a look at some of Smartdraw’s key features:

  • True Automation: You can automatically create an ER diagram, just putting the data available, without using time drawing.
  • Intelligent Formatting: You can add or remove more than one shape, and the program will be able to realign and arrange all the ERD elements.
  • Quick-Start Templates: The platform provides professionally-designed ERD examples and other software design diagrams.
  • Free Support: Many users have reported an effective customer service online, carried out via live chat or email.

⇒ Try Smartdraw

Not satisfied with the software solutions listed above? You did try them, but you want to test other software?  You can try as well ERD Plus, ER Diagram Tool, and Creately.

This article gave you a glance on the hottest software able to create the best ER diagrams. Let us know which software suits your needs best in the comment section below.

Still having issues? Fix them with this tool:


If the advices above haven't solved your issue, your PC may experience deeper Windows problems. We recommend downloading this PC Repair tool (rated Great on to easily address them. After installation, simply click the Start Scan button and then press on Repair All.


How do I make an ER diagram in Word?

Follow the instruction below:.
Go to the File menu, find Database, choose an ER diagram type and start..
The ER diagram symbols library will open automatically on the left, providing a defined set of symbols commonly used in ER diagram..

Which software is used to draw ER diagram?

Lucidchart makes it easy to visualize your database structure and build ER diagrams online quickly and efficiently to save you time. Our ER diagram creator automatically generates your models and connections using our data import feature to structure your database tables and schemas directly onto the canvas.

How do you draw an ER diagram?

How to Draw ER Diagrams.
Identify all the entities in the system. An entity should appear only once in a particular diagram. ... .
Identify relationships between entities. Connect them using a line and add a diamond in the middle describing the relationship..
Add attributes for entities..

How to draw an ER diagram for free?

Best Free ER Diagram Tools.
Visual Paradigm..