The best free alternative to Lucidchart is draw.io, which is also Open Source. If that doesn't suit you, our users have ranked more than 100 alternatives to Lucidchart and loads of them is free so hopefully you can find a suitable replacement. Other interesting free alternatives to Lucidchart are Excalidraw, LibreOffice - Draw, Dia and yEd Graph Editor.
All-in-one system integrates project, task, and time management with customizable modular dashboards, collaborative image annotation, multiple task views, and granular workflow customization for teams of any size or industry, streamlining complex to simple projects.
United States
Feature-rich diagram editor offering privacy-focused, ad-free experience with real-time collaboration, offline usage, dark mode, and cloud storage support. No registration required and compatible with various diagram formats, it excels in simplicity by not tracking user data.
United Kingdom
Excalidraw is an open-source whiteboard tool that lets you easily sketch diagrams that have a hand-drawn feel to them. Available directly online as a web app and also through CodeSandbox to easily see how the code works, and the app is available for self-hosting.
Czechia
EU
Draw lets you produce anything from a quick sketch to a complex plan, and gives you the means to communicate with graphics and diagrams. With a maximum page size of 300cm by 300cm, Draw is a an excellent package for producing technical drawings, general posters, and much else.
GermanyEU
Open-source diagram editor supporting Linux, Windows, Unix, and Mac OS X, with features for constructing entity relationship, UML, flowchart, and network diagrams, customizable with XML-defined shapes, extensibility, and a GTK+-based graphical user interface.
United States
yEd is a powerful diagram editor that can be used to quickly create diagrams manually or import external data for analysis and auto-magically arrange even large data sets by just pressing a button. You can use yEd to quickly create flow charts, BPMN and UML diagrams...
GermanyEU
A secure collaboration platform for distributed teams offering real-time and asynchronous capabilities, infinite canvas, integrations with major tools like Google Suite, Slack, and Dropbox, and features for enhanced product development and design workflows.
United States
Freeplane is a powerful and free software for building mind maps. It is a redesigned version of the well known FreeMind , and is created by one of FreeMind's key developers.
GermanyEU
PlantUML is an open-source tool that uses simple textual descriptions to draw UML diagrams. The generator can be run anywhere within JVM and integrated with various application such as wiki, text editor, IDE, programming language, documentation generator, and others.
FranceEU
Ever wanted to simplify documentation and avoid heavy tools like Visio when explaining your code? This is why mermaid was born, a simple markdown-like script language for generating flowcharts, Gantt charts and sequence diagrams from text via JavaScript.
SwedenEU
Whimsical is a collaborative visual workspace for creating flowcharts, wireframes, virtual sticky notes, and more!.
United States
Coggle is a simple, beautiful, powerful way of structuring information. It's designed to help you understand things, and then share your knowledge by arranging your document in the same way that your mind works.
United Kingdom
Mind mapping helps you organize your thoughts, remember information and generate new ideas. We've created a beautiful, intuitive app, so you can mind map wherever you are and whenever you want.
NetherlandsEU
