Open Source Diagram Software
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Diagram Software
View 82 business solutionsBrowse free open source Diagram software and projects below. Use the toggles on the left to filter open source Diagram software by OS, license, language, programming language, and project status.
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PlantUml allows to quickly create some UML diagram using a simple textual description language.
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drawio-desktop
Security-first diagramming for teams
Security-first diagramming for teams. Bring your storage to our online tool, or go max privacy with the desktop app. Works with Google Drive and Google Workplace (G Suite). Use add-ons for Docs, Sheets and Slides. Works with OneDrive and Sharepoint. Office 365 app for Word, Powerpoint and Excel. Highest-rated Confluence app in the Atlassian Marketplace. Works in Jira too. Works with GitHub, GitLab and Dropbox for visual documentation in distributed teams. Download diagrams.net Desktop for offline use on Windows, macOS, Linux and ChromeOS. Nextcloud is an ideal on-premise file hosting system for diagrams.net. Entity relationship diagrams or ER models in software engineering show the structure of and relationships between database objects. They are used extensively in database modelling to plan new systems, and document existing systems for maintenance and updates. -
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Xfig
Xfig is a diagramming tool
Xfig is a diagramming tool. -
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Yaoqiang BPMN Editor
an Open Source BPMN 2.0 / DMN 1.1 Modeler
Yaoqiang BPMN Editor is a graphical editor for business process diagrams, compliant with OMG specifications (BPMN 2.0 / DMN 1.1). -
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diagrams.net
Security-first diagramming for teams
Bring your storage to our online tool, or go max privacy with the desktop app. Diagram files created in 2005 will load in the app today. Works with Google Drive and Google Workplace (G Suite). Use add-ons for Docs, Sheets and Slides. It works with OneDrive and Sharepoint. Office 365 app for Word, Powerpoint and Excel. Highest-rated Confluence app in the Atlassian Marketplace. Works in Jira too. Works with GitHub, GitLab and Dropbox for visual documentation in distributed teams. You can download diagrams.net Desktop for offline use on Windows, macOS, Linux and ChromeOS. Nextcloud is an ideal on-premise file hosting system for diagrams.net. -
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mermaid
Diagram and flowchart generation from text similar to markdown
mermaid is a JavaScript-based diagram and flowchart generating tool that uses markdown-inspired text for fast and easy generation of diagrams and charts. Forget about using heavy tools to explain your code. mermaid greatly simplifies documentation with its simple markdown-like script language, and offers a great range of diagram and chart options. The latest version of mermaid comes with a number of bug fixes and enhancements, as well as a new diagram type, entity relationship diagrams. Its range of available diagrams include flowcharts, sequence diagrams, gantt diagrams and more, with new ones continuously being developed. -
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Zipkin
Distributed tracing system to gather timing data
Zipkin is a distributed tracing system. It helps gather timing data needed to troubleshoot latency problems in service architectures. Features include both the collection and lookup of this data. If you have a trace ID in a log file, you can jump directly to it. Otherwise, you can query based on attributes such as service, operation name, tags and duration. Some interesting data will be summarized for you, such as the percentage of time spent in a service, and whether or not operations failed. The Zipkin UI also presents a Dependency diagram showing how many traced requests went through each application. This can be helpful for identifying aggregate behavior including error paths or calls to deprecated services. Applications need to be “instrumented” to report trace data to Zipkin. -
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PlantUML
Generate diagrams from textual description
Generate UML diagram from textual description. PlantUML is not affected by the log4j vulnerability. The easiest way to test PlantUML is in an online solution that has PlantUML embedded, such as our online server. After testing, you may want to install PlantUML locally. Run (or have your software call) PlantUML, using sequenceDiagram.txt as input. The output is an image, which either appears in the other software, or is written to an image file on disk. Diagrams are defined using a simple and intuitive language. (see PlantUML Language Reference Guide). Images can be generated in PNG, in SVG or in LaTeX format. It is also possible to generate ASCII art diagrams (only for sequence diagrams). -
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ERMaster is Eclipse plug-in to make ER diagram. Functionally, Import from data base, Making of table definition book on Excel, Image output, DDL output, etc. are being offered.
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WaveDrom
Digital timing diagram rendering engine
WaveDrom is a free and open-source online digital timing diagram (waveform) rendering engine that uses javascript, HTML5 and SVG to convert a WaveJSON input text description into SVG vector graphics. WaveJSON is an application of the JSON format. The purpose of WaveJSON is to provide a compact exchange format for digital timing diagrams utilized by digital HW / IC engineers. The engine is using WaveDromSkin skin mechanism to render a complete picture. WaveDrom draws your Timing Diagram or Waveform from a simple textual description. It comes with description language, a rendering engine and an editor. WaveDrom editor works in the browser or can be installed on your system. -
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GoJS
JavaScript diagramming library for interactive flowcharts & org charts
Build interactive flowcharts or flow diagrams. Let your users build, modify, and save diagrams with JSON model output. Visualize state charts and other behavior diagrams. Create diagrams with live updates to monitor state, or interactive diagrams for planning. GoJS allows considerable customization of links and nodes to build all kinds of diagrams. Visualize flow, or connect pipes. Create genogram and medical diagrams, or editable family trees with collapsible levels. Create classic org charts for viewing or editing. Automatic layouts make different visualization options easy. Dynamically add ports and custom link routing. Use data-bindings to save and load routes within the Model JSON. Use groups as containers and subgraphs, with group members bound by their own rules and layouts. Model industrial processes, workflows, SCADA diagrams and more. -
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Pencil
The Pencil Project's unique mission is to build a free tool
Pencil is built for the purpose of providing a free and open-source GUI prototyping tool that people can easily install and use to create mockups in popular desktop platforms. The latest stable version of Pencil is 3.1.0 which contains stability fixes and many new features. More details can befound in the releaste notes. Pencil provides various built-in shapes collection for drawing different types of user interface ranging from desktop to mobile platforms. Starting from 2.0.2, Pencil is shipped with Android and iOS UI stencils pre-installed. This makes it even easier to start protyping apps with a simple installation. Starting from 2.0.2 Pencil has even more shape collections included by default. The list of built-in collections now includes general-purpose shapes, flowchart elements, desktop/web UI shapes, Android and iOS GUI shapes. -
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React Diagrams
Super simple, no-nonsense diagramming library written in react
A flow & process orientated diagramming library inspired by Blender, Labview and Unreal engine. Modern Codebase written entirely in Typescript and React, the library makes use of powerful generics, advanced software engineering principles and is broken up into multiple modules. Hackable and extensible the entire library including its core can be extended, rewired and re-assembled into fundamentally different software to suit your own software needs. HTML nodes as a first-class citizen the library was originally written to represent advanced dynamic nodes, that are difficult to represent as SVG's due to complex input requirements ux requirements. Designed for process the library is aimed for software engineers that want to rewire their programs at runtime, and that want to make their software more dynamic. Fast diagram editing the defaults provided give the highest priority to editing diagrams as fast as possible. -
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draw.io
JavaScript client-side editor for general diagramming & whiteboarding
draw.io is a JavaScript, client-side editor for general diagramming and whiteboarding. draw.io, this project, is a configurable diagramming/whiteboarding visualization application. draw.io is jointly owned and developed by JGraph Ltd and draw.io AG. draw.io is a diagramming or whiteboarding application, depending on which theme is selected. It is not an SVG editing app, the SVG export is designed only for embedding in web pages, not for further editing in other tools. The application is designed to be used largely as-is. It's possible to alter the major parts of the interface, but if you're looking for an editor with very specific editing features, the project is likely not a good base to use. That is to say, if you wanted to create/deploy a whiteboard or diagramming application where the functionality in the main canvas is as this project provides, it is more likely to be a good base to use. -
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QtRPT
Easy-to-use print report library and designer
QtRPT is the easy-to-use report engine written in C++ QtToolkit. It allows combining several reports in one XML file. For separately taken field, you can specify some condition depending on which this field will display in different font and background color, etc. The project consists of two parts: report library QtRPT and report designer application QtRptDesigner. Report file is a file in XML format. The report designer makes easy to create report XML file. -
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Nx
Smart, fast and extensible build system
Nx builds a project graph by analyzing your workspace, which it then uses to only rebuild what is necessary and to never run the same computation twice. Nx also helps establish structured code sharing and ownership management to keep the workspace maintainable. Nx provides a modern integrated dev experience. It has a high-quality VS Code plugin, interactive visualizations, GitHub integration and more. The core of Nx is generic, simple, and unobtrusive. Nx Plugins are completely optional, but they can really level up your productivity. Whether you have one project or one thousand, Nx will keep your CI fast and your workspace maintainable. Nx is smart. It analyzes your workspace and figures out what can be affected by every code change. That's why Nx doesn't rebuild and retest everything on every commit, it only rebuilds what is necessary. Nx comes with an interactive dependency diagram to help explore and understand your workspace. -
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vis-network
Display dynamic, automatically organised, customizable network views
Network is a visualization to display networks and networks consisting of nodes and edges. The visualization is easy to use and supports custom shapes, styles, colors, sizes, images, and more. The network visualization works smooth on any modern browser for up to a few thousand nodes and edges. To handle a larger amount of nodes, Network has clustering support. Network uses HTML canvas for rendering. As of 4.0, the network consists of individual modules which handle specific parts of the network. These modules have their own docs, options, methods and events which you can access by clicking on the modules. -
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C4-PlantUML
C4-PlantUML combines the benefits of PlantUML and the C4 model
C4-PlantUML combines the benefits of PlantUML and the C4 model for providing a simple way of describing and communicating software architectures – especially during up-front design sessions, with an intuitive language using open source and platform-independent tools. C4-PlantUML includes macros, stereotypes, and other goodies (like VSCode Snippets) for creating C4 diagrams with PlantUML. At the top of your C4 PlantUML .puml file, you need to include the C4_Context.puml, C4_Container.puml or C4_Component.puml file found in the root of this repo. -
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ChatterBot
Machine learning, conversational dialog engine for creating chat bots
ChatterBot is a Python library that makes it easy to generate automated responses to a user’s input. ChatterBot uses a selection of machine learning algorithms to produce different types of responses. This makes it easy for developers to create chat bots and automate conversations with users. For more details about the ideas and concepts behind ChatterBot see the process flow diagram. The language independent design of ChatterBot allows it to be trained to speak any language. Additionally, the machine-learning nature of ChatterBot allows an agent instance to improve it’s own knowledge of possible responses as it interacts with humans and other sources of informative data. An untrained instance of ChatterBot starts off with no knowledge of how to communicate. Each time a user enters a statement, the library saves the text that they entered and the text that the statement was in response to. As ChatterBot receives more input the number of responses that it can reply increase. -
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D2
D2 is a modern diagram scripting language that turns text to diagrams
D2 is a diagram scripting language that turns text to diagrams. It stands for Declarative Diagramming. Declarative, as in, you describe what you want diagrammed, it generates the image. As well, the functioning of the install script is described in detail to alleviate any concern of its use. We recommend using your OS's package manager directly instead for improved security but the install script is by no means insecure. D2 includes a variety of official themes to style your diagrams beautifully right out of the box. See ./d2themes to browse the available themes and make or contribute your own creation. D2 is designed with language tooling in mind. D2's parser can parse multiple errors from a broken program, has an autoformatter, syntax highlighting, and we have plans for LSP's and more. Good language tooling is necessary for creating and maintaining large diagrams. D2 is designed to be extensible and composable. -
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ioDraw
Free software for making Flow chart, Mind map, Gantt chart, Whiteboard
ioDraw is a free online drawing software, which is used to make flow chart, mind map, Gantt chart, whiteboard, mermaid, poster, and more—no registration required. It also features AI-generated charts. -
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Eulumdat_3D - QLumEdit2
show and edit eulumdat files
Eulumdat_3D the better Eulumdat viewer and editor. You can view ldt files as 3D ,compare two luminaires, print a simple datasheet. From given light distribution you can create different ldt files depending on light flux and CCT also as app under https://play.google.com/store/apps/details?id=com.riloc.eulumdat -
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DiagrammeR
Graph and network visualization using tabular data in R
DiagrammeR is an R package to create, manipulate, and visualize network graphs, flowcharts, diagrams, and more using Graphviz and Mermaid syntax. Integrates with RMarkdown and Shiny apps, supports node/edge traversal, and graph analysis algorithms, making it ideal for documenting processes, causal relationships, or data pipelines. -
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Diagrams
Diagram as Code for prototyping cloud system architectures
Diagrams lets you draw the cloud system architecture in Python code. It was born for prototyping a new system architecture without any design tools. You can also describe or visualize the existing system architecture as well. Diagram as Code allows you to track the architecture diagram changes in any version control system. Diagrams currently support main major providers including AWS, Azure, GCP, Kubernetes, Alibaba Cloud, Oracle Cloud, etc. It also supports On-Premise nodes, SaaS and major Programming frameworks and languages. It does not control any actual cloud resources nor does it generate cloud formation or terraform code. It is just for drawing the cloud system architecture diagrams. -
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LogicFlow
A flow chart editing framework focusing on business customization
LogicFlow is a flowchart editing framework that provides a series of functions necessary for flowchart interaction and editing, as well as simple and flexible node customization, plug-in and other expansion mechanisms, so that we can quickly meet the needs of class flowcharts in business systems. Compatible with the process editing requirements of various product customizations, most modules are implemented in the form of plug-ins, and each module is supported to be plugged and unplugged freely. Flowcharts can fully express business logic without being limited by process engines. A framework focused on business process flow editing.
Guide to Open Source Diagram Software
Open source diagram software is a category of software that is created and maintained by the open-source community, meaning anyone in the world can access, modify, and improve it. This type of software typically provides a suite of tools for creating diagrams such as flowcharts, entity-relationship models, data mappings, process maps/workflows/UML diagrams, state diagrams/finite state machines, circuit schematics, org charts and mind maps. Many open source diagramming tools provide basic features such as drag-and-drop diagramming shapes to create visuals quickly. Additionally they often allow you to link data from external sources like Excel or XML files which makes them great for visualizing complex business processes.
The benefits of using open source diagram software are numerous: it gives users access to cost-efficient options with no licensing requirements; provides control over code and ability to customize the applications according to individual needs; allows developers to build on existing solutions in order to make new ones while maintaining compatibility with other programs; grants wide support from user forums and online documentation that help problem solving quicker and easier; encourages collaboration among users who can share design ideas and improvement tips; allows integration with other platforms making it easy for people working remotely or in separate teams across different locations.
In conclusion open source diagram software offers an invaluable free resource for visually expressing information in an easily understandable way. Companies are more likely to invest in these solutions knowing that any internal development does not have additional costs associated with licensing fees. As well as encouraging interdepartmental communication through sharing ideas online this kind of technology also helps facilitate cross-team collaboration by providing better visualization capabilities enabling complex projects or initiatives to be completed faster with higher degree of accuracy.
What Features Does Open Source Diagram Software Provide?
- Symbols & Shapes: Open source diagram software provide a wide range of symbols and shapes to be used in the diagrams. These include basic shapes like rectangles, circles, squares, and more complex ones such as stars or hexagons. The user can customize the look and size of each shape according to their need.
- Connectors: The software provides commands to be used to create connections between objects on different layers. This simplifies the process of connecting related items together in one diagram.
- Templates: Pre-made templates are available which can be customized according to specific needs. This makes creating diagrams quickly easier for users who don’t want to start from scratch every time they make a new diagram.
- Text & Color Labels: Users can add text labels next to certain shapes or connectors for additional clarity, as well as use different colors or gradients for further customization and emphasis on certain aspects within a diagram.
- Export Options: Diagrams created with open source software can usually be exported in various formats that include vector graphics (e.g., SVG), PostScript, JPEG/PNG image files etc., making it easy for other people/applications to read them without requiring a specific program or system environment setup beforehand.
What Types of Open Source Diagram Software Are There?
- Visio Alternative: Some open source diagram software packages are alternatives to Microsoft Visio. These programs use a graphical user interface to help create visual diagrams and schematics, such as flowcharts, network diagrams, and organizational charts.
- Technical Drawing Software: Other open source diagramming tools are usually referred to as technical drawing or CAD programs. These focus on creating flat drawings of mechanical parts, buildings, and other architecture-related designs.
- UML Diagram Software: Unified Modeling Language (UML) is an expressive language used by software engineers to graphically model the system architectures they develop. UML diagram tool packages can help quickly create class diagrams, sequence diagrams, use case models and more.
- Process Mapping/Flowchart Tools: Open source packages that allow users to map out processes in detail often incorporate features like swimlanes or timeline views into their user interfaces for easy readability. This type of software is helpful for those who need a comprehensive view of how their business works from start to finish when analyzing the process flows within an organization’s structure.
- Mockup Software: Mockup tools enables developers to quickly create wireframes or prototypes of user interfaces or websites. Many of these types of open source applications offer drag-and-drop capabilities along with libraries full of reusable elements that aid in creating realistic mockups in less time than it would take without them.
- Mind Mapping Software: Mind mapping involves putting ideas together into a visual representation so that its easier for users to understand them collectively as well as each component individually inside the larger whole. Open source mind mapping tools are helpful for brainstorming tasks or keeping track of long lists that involve multiple components within one main concept.
What Are the Benefits Provided by Open Source Diagram Software?
- Cost-Effective: Open source diagram software makes it possible to create professional diagrams without having to pay for expensive software. The cost of using open source tools can often be substantially less than purchasing commercial software, or even free in some cases.
- Increased Flexibility: Open source diagramming software usually allows users to customize their workflows and the appearance of their diagrams in ways that may not be possible with proprietary programs. This flexibility facilitates easier collaboration between users, and enables them to develop diagrams tailored to specific needs.
- High Quality Results: With open source diagramming tools, users have access to the same high-quality features as those offered by commercial providers, such as vector graphics and text formatting options. As a result, the results are usually comparable in terms of quality and output format.
- Improved Modification Features: Most open source diagramming tools make it easy for users to modify existing diagrams or create new ones quickly and accurately. This is especially useful when working on projects involving multiple stakeholders who need the ability to make changes quickly without compromising upon the accuracy of their work.
- Enhanced Security: Many open source programs offer enhanced security features that may not be available with proprietary programs such as password protection or data encryption capabilities. By taking advantage of these features, organizations can ensure that sensitive information remains confidential and protected from unauthorized access or manipulation.
- Easy Accessibility: Unlike many other types of software where installation is required on each user's computer, most open source diagramning tools are easily accessible online allowing any collaborator with internet access to use it without significant setup time needed otherwise.
Who Uses Open Source Diagram Software?
- Business Users: Business users often use open source diagram software to support their everyday business processes. They can create diagrams to map out organizational structures, create graphic presentations of data, and visually communicate process flows to support decision making.
- Academic Researchers: Academic researchers also make heavy use of open source diagram software for mapping out complex research topics, displaying experimental results and creating visualizations of scientific theories or hypotheses.
- Teachers: Teachers rely heavily on open source programs for developing visuals such as flowcharts, timelines and trees that help students better understand course material.
- Project Managers: Project managers turn to open-source diagram software in order to construct project management diagrams like Gantt charts and PERT diagrams which are used for planning complex projects with numerous tasks and dependencies.
- Software Developers: Software developers use open-source diagramming tools for process modeling, object-oriented development as well as documenting the architecture of their applications.
- Web Designers & Content Creators: Open source diagram software comes in handy when designing website layouts or constructing data visualizations from large datasets online. Diagrams can be used in both drafting web page designs and creating content that partners technology with infographics or interactive graphics.
How Much Does Open Source Diagram Software Cost?
Open source diagram software is free to use, meaning that it costs nothing. Open source usually refers to software that is created and maintained by a community of volunteers and developers. Generally, these volunteers will make the software freely available for anyone to download, use, study and modify without having to pay any fee or cost. There may also be additional features or services offered as part of some open source diagram programs, but those would typically come at a minimal cost. For example, many open source projects offer support or training services for a nominal fee. Ultimately though, you can expect not to have to spend any money for access to the basic capabilities of an open source diagram program.
What Software Can Integrate With Open Source Diagram Software?
Many types of software can integrate with open source diagram software in order to create diagrams more quickly and efficiently. For example, data visualization and modelling tools like Microsoft Excel can be used to generate visualizations based on spreadsheet-stored data that can then be imported into an open source diagramming program. Similarly, databases such as PostgreSQL or Oracle Database can also be integrated with a diagram software to help visualize complex systems in a simplified way. Additionally, document publishing programs like LaTex and Markdown are compatible with many popular open source diagramming solutions and make it easier for users to create professional-looking diagrams in a fraction of the time.
Open Source Diagram Software Trends
- Increased Usage: Open source diagram software has gained in popularity over the past few years, with many businesses and organizations opting to use it instead of more expensive proprietary tools. This can be attributed to the cost savings associated with open source tools, as well as the wide range of features and functionality available.
- Improved Functionality: Open source diagram software has become increasingly powerful and feature-rich over the past few years. Many open source tools now offer features such as cloud integration, collaborative editing, and version control, which make them attractive options for businesses looking for a cost-effective way to create and share diagrams.
- Rising Popularity: The increasing availability of open source diagram software has led to a surge in its usage among both hobbyists and professionals. This is due to the fact that many users find open source tools to be easier to use than traditional proprietary picture editors and are also more customizable than their commercial counterparts.
- Growing Ecosystem: The open source community has grown significantly in recent years, with many developers creating new plugins and add-ons for existing open source software. This has increased the functionality available for users and allowed for more efficient collaboration between teams.
- Cloud Integration: As cloud computing becomes more widespread, open source diagram software has also started to integrate with cloud services such as Dropbox and Google Drive. This allows users to easily share diagrams with colleagues and store them securely in the cloud.
How To Get Started With Open Source Diagram Software
Getting started with open source diagram software can be a simple and straightforward process. The first step is to select the specific diagram software you would like to use and download it onto your computer or device. If necessary, read any installation instructions that come with the software, as some may need additional steps for full integration into your system.
Once the diagram software has been downloaded and installed, users should familiarize themselves with its features and user interface. Most open source diagrams will include help instructions built-in, so users should navigate through these to learn more about navigating menus, creating shapes, selecting colors or fonts and other features of the program.
The next step is to start using your open source diagram software. Begin by brainstorming ideas for possible diagrams you wish to create, then draw out rough draft sketches on paper before starting work on the actual design in theprogram itself. This will allow you better visualize what you are trying to achieve before taking any time constructing it in detail within the software itself. When ready, begin building your diagram in your chosen open source program - adding shapes where needed while setting up text boxes or labels accordingly. You can customize many aspects of each individual element; this includes things like font size/style, shape properties (width/height etc), color/texture selection etc. Furthermore feel free to experiment with some of the tools that exist within certain programs: for example pivot tables for data organization and manipulation, animation tools for motion graphics etc.
Having completed your design(s) consider exporting them from their original format into an image file (e.g png/jpeg), which can then be shared online or printed out if necessary. Finally remember that most programs offer online support forums (explore community sites such as StackOverflow) where further advice on topics relating to this type of program can always be sought out.
