9 Best Free and Open Source Wireframe Tools

10 Best Free and Open Source Wireframe Tools

A wireframe tool helps designer visualize the project and demonstrate functionalities quickly in the early stage of project planning. When you’re working with a design team for creating  a website template or mobile app, a wireframe can serve as a way to communicate what you want your project to look like without going through the hassle of coding a prototype.

A wireframe serves 3 simple but exact purposes:

  1. It presents the information that will be displayed on the page
  2. It gives an outline of structure and layout of the page
  3. It conveys the overall direction and description of the user interface

Here is a list of best free and opensource wireframe tools that lets you avoid complex software like Photoshop, Illustrator or need to buy any wireframe pro tools. These tools will save tons of hours you need to works for arranging elements. Let’s start to find your favourite forever free and open source wireframe tools for future works.

1. Wireflow

Wireflow is free online and open source wireframe tool for creating beautiful user flow prototypes. Having over 100 custom build graphics and cards to use web elements. Wireflow comes with collaboration in mind. You can invite your co-worker and together in real-time design the user flow for your project.

2. Lucidchart

Lucidchart is a free wireframe builder and UI design tool which is a solution for visual communication and cross-platform collaboration. It offers hundreds of free templates and shapes with easy drag and drop functionality to create professional flowcharts, process maps, UML models, org charts, wireframing, iOS mockups and more. Lucidchart free version is limited to one user and 60 project objects.

wireframe tool Lucidchart

3. Pencil

Pencil is a free open-source GUI prototyping desktop software that can easily install and use to create mockups. You can install on popular operating systems such as Mac OSX, Linux Ubuntu, and Windows 32 and 64 bit.

4. InVision

InVision is a prototyping, collaboration and workflow tool that offers cloud-based solution to design and wireframe mobile apps and desktop sites.

5. MockFlow

Mockflow enables you to create working prototypes, and has an emphasis on collaboration and sharing. This basic forever free wireframe helps you brainstorm user interface ideas. Mockflow includes features such as a sitemap creator for pages and folders, version tracking, image and component collections, chat, and HTML5 export.

6. Frame Box

Frame Box is a free online wireframe web application for very simple wireframing. It includes a few drag and drop elements and allows you to share the web page as a unique URL.

7. Moqups

Moqups is a streamlined web app that helps you create and collaborate in real-time on wireframes, mockups, diagrams and prototypes. It has free version limitations one project, 300 object limit and 5 MB of storage.

8. Fluid UI

Fluid UI’s cloud-based wireframing solution offers designers a library of over 2,000 elements. You can create web and mobile prototypes in minutes. If you go with a free plan, it allows one project, and ten pages, but you can’t upload, limited to the wireframe library, and no ability for group members to leave comments or feedback.


UXBOX is an open-source solution for design and prototyping but it currently at an early development stage.