Alternatives to StarUML
Compare StarUML alternatives for your business or organization using the curated list below. SourceForge ranks the best alternatives to StarUML in 2026. Compare features, ratings, user reviews, pricing, and more from StarUML competitors and alternatives in order to make an informed decision for your business.
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1
MyDraw
Nevron Software
MyDraw is one of the most advanced diagramming and vector graphics drawing tools available today. MyDraw is an easy, affordable yet powerful tool that can help you create a large number of diagrams including flowcharts, organizational charts, mind maps, infographics, network diagrams, floor plans, family tree diagrams, business model diagrams, flyers, newsletters, and many more. MyDraw is cross-platform and works on both Windows and macOS. It also features class-leading Microsoft Visio® compatibility that allows you to both import and export files from different Visio formats. The software is packed with advanced features such as advanced drawing tools, unrivaled text and table formatting options, automatic layouts, import and export to various image formats (PDF, SVG, JPEG, BMP, etc.), smart shapes and connectors, and others. The software also includes a vast number of ready-made templates and thousands of shapes that help you get inspired and be more productive.Starting Price: $69.00/one-time/user -
2
Lucidchart
Lucid Software
Lucidchart is an advanced diagramming tool designed to help businesses and teams optimize their processes, systems, and workflows with intelligent, data-driven diagrams. The platform combines powerful AI features, such as AI-generated diagrams, data linking, and real-time collaboration, to make visualizing complex systems and architectures faster and more efficient. Lucidchart supports multiple use cases, including process maps, flowcharts, technical diagrams, organizational charts, and systems planning. Its seamless integrations with popular apps like Jira, Confluence, Slack, and Teams allow for enhanced collaboration, enabling teams to align on priorities and act on insights quickly. Lucidchart is the perfect tool for anyone looking to create professional diagrams in less time, while fostering better decision-making and innovation.Starting Price: $7.95/month/user -
3
Astah SysML
Change Vision, Inc.
Astah SysML is a powerful SysML (Systems Modeling Language) modeling tool which is perfect for systems engineering. Our user-friendly tool helps create a clear understanding among business analysts, engineers, developers, and quality assurance specialists with Astah SysML. Supported diagram types are: - Block Definition Diagram (BDD) - Internal Block Diagram (IBD) - Requirement Diagram - Requirement Table - Parametric Diagram - UseCase Diagram - Statemachine Diagram - Activity Diagram - Sequence Diagram - Mindmap We’ve been incorporating user feedback for more than 10 years. The result is a powerful software program that is incredibly easy to use. Astah SysML offers a variety of “assist” functions to make your work faster, including: - Create an object by double-click - Create multi-objects by texts - Alignment guides -Clone models/diagrams...etc. Profile, XMI import/export, data exchange with Cameo Systems Modeler are also available.Starting Price: $140/year -
4
UML Designer
UML Designer
UML Designer provides a set of common diagrams to work with UML 2.5 models. The intent is to provide an easy way to make the transition from UML to domain specific modeling. This way users can continue to manipulate legacy UML models and start working with DSL. Users can even re-use the provided representations and work in a total transparence on both UML and DSL models at the same time. It provides a generic workbench for model-based architecture engineering that could be easily tailored to fit specific needs. It uses the standard UML2 metamodel provided by the Eclipse Foundation. As it is based on Sirius, it provides an easy way to combine UML with domain specific modeling. You can extend the provided diagram definitions and seamlessly work on both UML and DSL models at the same time. You can easily modify it to adapt each diagram to your needs. Give a try to the latest UML Designer release and get the corresponding code. -
5
Software Ideas Modeler
Software Ideas
Software Ideas Modeler is an essential tool in software engineering. It is a feature-rich CASE tool that can help you with software design using various diagram notations and modeling tools. Try our UML modeler, ERD designer, flowchart maker, wireframing tools, or BPMN editor for free. The diagramming modules are optimized for particular tasks in the specific domain. Tools for UML diagrams, Layer diagrams, Flowcharts, and Data Flow Diagrams and others help you design your software or its crucial parts properly. Documentation and glossary modules in our CASE tool allow you to communicate your design effectively. Professionally process the user requirements using Advanced Use Case analysis or User Stories depending on your preference. Turn code to diagrams using the code analytic tools for many popular programming languages. Generate source code scaffold and code parts using source code generators, also using custom code templates.Starting Price: $68 one-time payment -
6
Galaxy Modeler
Ideamerit
Galaxy Modeler is a schema design tool for GraphQL data modeling. Draw diagrams, add notes, captions to the diagrams, import existing schema structures and generate reports or schema creation scripts. Supported platforms: - GraphQL Key features: - Data modeling and schema design - Visualization of GraphQL schemas - Import from URL - Generation of interactive HTML reports - Generation of schema creation scripts - Various themes and styles for reports - Multiple display modes - Support for sub-diagramsStarting Price: $99 -
7
ERDPlus
ERDPlus
A database modeling tool for creating entity relationship diagrams, relational schemas, star schemas, and SQL DDL statements. ERDPlus is a web-based database modeling tool that lets you quickly and easily create Entity Relationship Diagrams (ERDs). Works with most contemporary RDBMS tools including Oracle, MySQL, Microsoft SQL Server, PostgreSQL, Teradata, IBM DB2, Microsoft Access, and others. The notation supports drawing regular and weak entities, various types of attributes (regular, unique, multi-valued, derived, composite, and optional), and all possible cardinality constraints of relationships (mandatory-many, optional-many, mandatory-one, and optional-one). The tool supports the quick creation of foreign keys and referential integrity lines by simple click-point-connect actions. This simplifies and quickens the process of creating relational schemas. The notation distinguishes fact tables from dimension tables by using a thicker frame around fact tables.Starting Price: Free -
8
DbWrench
DbWrench
Makes creating and modifying databases quicker and easier. Streamlines many common database tasks. Supports many operating systems and databases in a single license. Use generated scripts to apply changes. Use ER diagrams to model, analyze and communicate your designs. Reverse engineer databases into our database designer in seconds. Our priority is to implement features that will save database developers time with their database design tasks. We use extensive testing and continuous release cycles to build a product users can rely on. Run DbWrench on Windows, Mac OS X and Linux, all with a single license. Run DbWrench with today's most popular database systems, and again, all with a single license. Edit database items directly in the diagram. Avoid navigating tree nodes and editing property sheets. Several ER notations to choose from, including Bachman, Barker and Information Engineering.Starting Price: $49 one-time payment -
9
Eclipse Papyrus
Eclipse Foundation
To address any specific domain, every part of Eclipse Papyrus may be customized: UML profile, model explorer, diagram notation and style, properties views, palette and creation menus, and much more. Eclipse Papyrus enables model-based techniques: model-based simulation, model-based formal testing, safety analysis, performance/trade-offs analysis, architecture exploration. Eclipse Papyrus is an industrial-grade open source Model-Based Engineering tool. Eclipse Papyrus has notably been used successfuly in industrial projects and is the base platform for several industrial modeling tools. Eclipse Papyrus provides also a complete support to SysML in order to enable model-based system engineering. All the modeling features of Eclipse Papyrus are designed to be customizable and to maximize reuse. -
10
Valentina Studio
Paradigma Software
Create, administer, query and explore Valentina DB, MySQL, MariaDB, PostgreSQL and SQLite databases for FREE. Design business reports running in Valentina Studio Pro, on Valentina Server or in an application with an Application Developer Kit. Backward Engineering in Standard with forwarding Engineering in Valentina Studio Pro. Reverse engineering and create diagrams for existing databases. Add new objects to diagrams. Write SQL queries with auto-completion, color syntax. Define, manage, save favorite queries; access recent queries. Function browser dictionary of each function. Consoles for errors, warnings, and performance. Search, Export result records into CSV, JSON, Excel. Edit properties of multiple objects at the same time. Drill down to tables and fields; incredible fast searching. Reverse engineering and create diagrams for existing databases. Add new objects to diagrams. Add/drop users, and groups, and manage privileges.Starting Price: $79 -
11
Meteor Modeler
Datensen
Define Sequelize models, fields and associations visually. Enhance diagrams by adding notes, comments, pictures and hyperlinks. Share pixel-perfect diagrams in printable format. A diagram can give you a clear model of your data structure and help you recognize errors. It's like a blueprint to your house. You know what you are building, how to connect the pieces and you have the necessary documentation. It allows all your team members or clients to understand the relations among collections and documents in an effective manner. Draw database structures and generate code. Avoid typos, make changes quickly.Starting Price: $79 one-time payment -
12
PlantUML
PlantUML
PlantUML is a powerful and flexible open source tool that allows users to create UML diagrams using simple text descriptions. It supports various diagram types, including sequence, use case, class, component, state, and activity diagrams. PlantUML also extends beyond traditional UML with support for other diagram types such as Gantt charts, mind maps, and entity-relationship diagrams. The platform uses a straightforward syntax to generate high-quality diagrams, making it easy for developers, system architects, and project managers to visualize complex systems and processes. Users can export diagrams in multiple formats like PNG, SVG, LaTeX, and ASCII art. PlantUML is compatible with a range of tools and integrates seamlessly into documentation workflows, enhancing productivity for teams and individuals.Starting Price: Free -
13
Astah UML
Astah
Astah UML is a powerful, easy-to-use diagramming tool tailored for creating UML diagrams in software development. It supports a wide range of UML 2.x diagrams, including class, use case, sequence, activity, and component diagrams, and provides users with tools for designing and managing complex projects. The platform features assist functions to speed up diagram creation, such as auto-creating class diagrams, alignment guides, and auto-layout. Additionally, users can integrate with other tools like Miro, PlantUML, and yUML, and customize the platform through an extensive library of plug-ins. Astah UML also supports reverse engineering of Java, C#, and C++ code and offers seamless code generation from diagrams. Diagrams can be exported in multiple formats, and the platform integrates well with office applications. It’s suitable for students, individual engineers, and development teams, making it a versatile tool for both learning and professional use in software modeling. -
14
Gleek
Gleek
Gleek is a text-to-diagram tool designed for developers to create various types of diagrams using only the keyboard, eliminating the need for a mouse. It supports a range of diagram types, including flowcharts, UML class and sequence diagrams, state machine diagrams, Gantt charts, user journey diagrams, and entity-relationship diagrams. Gleek uses a unique, intuitive syntax that allows users to quickly generate diagrams by describing them in text and offers tools for live collaboration and version control. The platform allows for easy customization of diagram design, export options, and the use of pre-designed templates. It is ideal for quickly visualizing software architectures, processes, and project plans. Gleek helps streamline the process of diagramming with a focus on simplicity, speed, and efficient collaboration, making it especially useful for software developers, project managers, and engineers.Starting Price: $6.95 per month -
15
DbSchema
Wise Coders
DbSchema is for visual designing the schema in a team, deploy and document the schema. Other integrated features like data explorer, visual query editor, data generator, etc., makes DbSchema an every-day tool for everybody who interacts with databases. DbSchema supports all relational and No-SQL databases, including MySQL, PostgreSQL, SQLite, Microsoft SQL Server, MongoDB, MariaDB, Redshift, Snowflake, Google and more. DbSchema is reverse-engineering the database schema from the database and visualize it as diagrams. You will interact with the database using diagrams and visual tools. DbSchema model is using its copy of schema structure, independent from the database. This allows the schema deployment on multiple databases, save the design model to file, store it in GIT and design the schema in a team, design the schema without database connectivity, compare different versions of the schema and generate SQL migration scripts.Starting Price: $63 one time payment -
16
Mark Text
Mark Text
Mark Text is an MIT licensed open source project, you will always be able to download the latest version from GitHub release page. Mark Text is still in development, and its development is inseparable from all sponsors. Support GFM table block, you can remove/add rows and columns. Support flowchart, sequence diagram, gantt diagram, vega chart. Support CommonMark and GitHub Flavored Markdown Spec. Realtime preview (WYSIWYG) and a clean and simple interface to get a distraction-free writing experience. Markdown extensions such as math expressions (KaTeX), front matter and emojis. Support paragraphs and inline style shortcuts to improve your writing efficiency. Paste images directly from clipboard. -
17
Nevron Vision for .NET
Nevron Software
Nevron Vision for .NET is a suite of leading charting and diagramming components for .NET applications. The suite also includes extensions like gauges, LED displays, graph layouts, maps, financial and statistical formulas, and more. Nevron Chart for .NET is the leading charting component for .NET. It is ideal for any business, presentation, financial and scientific application. The control supports all 2D and 3D charting types, wrapped in a well thought programming API. Build-in data biding, GPU acceleration, and others further complement this control. Nevron Diagram for .NET is a feature-rich, performant, and robust diagramming package for .NET. The control allows you to display flowcharts, organizational charts, maps, process control diagrams, HMI interfaces as well as many other types of drawings. Both the chart and diagram controls can export to different image formats such as PNG, JPEG, PDF, SVG, and others. The controls in the suite support WPF, WinForm, and ASP.NET/MVC apps.Starting Price: $1289.00 -
18
yEd
yWorks
yEd makes diagram creation easy and fun with its powerful features and intuitive user interface. yEd is a powerful desktop application that can be used to quickly and effectively generate high-quality diagrams. Create diagrams manually, or import your external data for analysis. Our automatic layout algorithms arrange even large data sets with just the press of a button. yEd comes with an extensive palette of beautiful, ready-to-use elements to get you started with your first diagrams. yEd provides powerful functionality for the layout of complex data sets. Its highly sophisticated mathematical layout algorithms can be used either to automatically arrange diagram elements, or to support you when undertaking a manual layout. -
19
ERD Lab
ERD Lab
ERD Lab is an online ER Diagram Tool that allows you to design your database visually. Import existing SQL or develop new database without writing a single line of code. Visualize your schemas to share & collaborate with your team. Export SQL or PDF/Image when done. All for FREE!Starting Price: $0 -
20
dAIgram
dAIgram
Daigram is an AI-powered diagram generator that uses OCR (Optical Character Recognition) technology to convert images of flowcharts, diagrams, and other visual data into editable digital files. Users can upload hand-drawn sketches, screenshots, or existing diagrams, which are then analyzed by the AI to identify shapes, links, and text. These elements are transformed into digital, editable diagrams, allowing for easy modification and customization. The platform supports various diagram types, including flowcharts and graphs, with plans to add more types like sequence diagrams, user journey maps, and mind maps. Daigram provides an intuitive interface to adjust the diagrams, such as changing shapes, colors, and text, and then allows users to export their work in formats like JPG, PNG, PDF, and JSON. It is especially useful for professionals in software development, project management, data analysis, education, and marketing, as it streamlines the creation and modification of diagrams. -
21
AutoDiagram
AutoDiagram
AutoDiagram is an AI-powered platform that transforms textual descriptions into professional-grade diagrams, streamlining the visualization process for professionals across various fields. Users can simply input their concepts in plain text, and the AI interprets the context to generate accurate visuals, supporting over 20 diagram types including flowcharts, ER diagrams, architecture maps, and sequence diagrams. The platform offers intelligent error prevention to ensure high-quality outputs and provides multiple export options such as SVG, PNG, and PDF for seamless sharing and collaboration. AutoDiagram is accessible through a free plan, allowing the creation of up to five diagrams per month, and a Pro plan at $9 per month for unlimited diagram creation and advanced features. We prioritize data security with industry-standard protocols and encryption measures to protect your diagrams and information.Starting Price: $9 per month -
22
Bhava
Bhava
Bhava is an AI-powered diagram editor that lets you create and refine a wide array of technical and conceptual diagrams, like flowcharts, system architecture layouts, UML, ERDs, sequence diagrams, network maps, mind maps, org charts, hardware schematics, and more, in seconds from plain text or even hand-drawn sketches. You simply describe what you need or paste an image (like a whiteboard photo or screenshot), and the AI instantly generates a fully editable and styled diagram, complete with smart layouts, connectors, and automatically placed icons for AWS, GCP, Azure, Kubernetes, and other libraries. Bhava also supports seamless import of existing diagrams from tools like draw.io or Mermaid, preserving layers, groups, and styling, and lets you continue editing and export the final output to standard formats such as PNG or SVG. Bhava provides design elements, styles, layers, groups, fully editable, and an intuitive interface for ongoing refinements.Starting Price: $9.99 per month -
23
AIFlowchart
AIFlowchart
This application will generate unique diagrams. If you don't like the generated diagram recreate it again, and then it will generate a new diagram. This tool will help you to generate diagrams with explanations. This means tools will explain each step of the diagram. Many themes are available. One customizable theme is also available. which means you can change the diagrams' colors. Our AI flowchart tool generates unique diagrams every time you use it, providing you with a wide range of creative options. Create flowcharts, graph diagrams, sequence diagrams, and pie charts effortlessly, all from a single tool. Generate diagrams from various sources, including text data, PDF files, or even blog content. We empower you to explore different visual representations until you find the perfect fit for your needs. -
24
ERBuilder
Softbuilder
ERBuilder Data Modeler is a GUI data modeling tool that allows developers to visualize, design, and model databases by using entity relationship diagrams and automatically generates the most popular SQL databases. Generate and share the data Model documentation with your team. Optimize your data model by using advanced features such as test data generation, schema compare, and schema synchronization.Starting Price: $49 -
25
ER/Studio Data Architect
ER/Studio
ER/Studio Data Architect is a powerful data modeling solution that helps organizations design, document, and optimize data structures across modern platforms. It enables architects and database professionals to build conceptual, logical, and physical data models that connect business definitions with technical implementation, ensuring consistent meaning and reliable analytics. The platform supports forward and reverse engineering, allowing teams to generate databases from models or reverse engineer existing systems for documentation and improvement. Schema compare and merge tools simplify change management, while visual diagrams make complex data structures easier to understand. ER/Studio supports platforms including SQL Server, Oracle, PostgreSQL, Snowflake, Databricks, and JSON architectures. Automation tools, impact analysis, and the AI-powered ERbert modeling assistant help accelerate model creation while maintaining structured, scalable data architecture.Starting Price: $2,687 per user -
26
Diagramming AI
Diagramming AI
Diagramming AI is an AI-powered platform designed to simplify diagram creation for professionals across various industries. It allows users to instantly generate various diagrams like flowcharts, UML, sequence diagrams, Gantt charts, and ER diagrams from text descriptions. Users can also interact with AI in discussion mode and update mode to refine and edit diagrams in real time. The platform integrates a visual editor with Excalidraw, enhancing diagrams with intuitive drag-and-drop controls. It automatically resolves diagram errors and supports formats like Mermaid, PlantUML, and Graphviz. Diagramming AI also features a flexible export system and provides templates to jumpstart projects. The tool caters to developers, project managers, data analysts, and other professionals needing to visualize processes, systems, and structures.Starting Price: $3 per month -
27
DiagramGPT
Eraser
3 types are currently available – entity relationship diagrams, cloud architecture diagrams, and sequence diagrams. A 4th type, flow charts are coming soon. Given user input, DiagramGPT uses OpenAI's GPT-4 to classify the appropriate diagram type and to generate Eraser's diagram-as-code syntax.Starting Price: $10 per user per month -
28
Moon Modeler
Ideamerit
Moon Modeler is a powerful and user-friendly data modeling tool tailored for NoSQL databases. It supports MongoDB and Mongoose ODM out of the box, and can also be used with Amazon DocumentDB, Azure Cosmos DB, and similar document-oriented databases. Supported platforms: - MongoDB - Mongoose ODM Key features: - Data modeling and schema design - Reverse engineering from MongoDB - Support for SSH/SSL/TLS connections - Hierarchical structures, embedded documents/nested objects - Generation of interactive HTML reports - Generation of schema validation or creation scripts - Various themes and styles for reports - Multiple display modes - Support for sub-diagramsStarting Price: $99 one-time payment -
29
DGRM.net
Boyko A. S.
DGRM is a free online flowchart editor designed for fast and simple diagram creation. It allows users to build flowcharts directly in their browser without installation or registration. The platform supports various diagram types, including business processes, mind maps, sequence diagrams, and database schemas. Its grid-based system ensures clean, well-aligned diagrams without manual adjustments. DGRM offers a minimal interface with no unnecessary buttons, making it easy for anyone to use. Users can share diagrams via links or export parts as images. Overall, DGRM provides a lightweight and efficient solution for creating structured visual diagrams.Starting Price: Free -
30
DTM Data Modeler
DTM Data Modeler
DTM Data Modeler is a CASE tool for database developers that supports both forward and reverse engineering. It is an easy-to-use tool allowing you to work both with logical and physical data models in the form of an entity-relationship diagram. The product is intended for database architects and developers and works with data sources via the ODBC interface, which means compatibility with all modern DBMS. Along with basic model properties (sets of entities and relationships between them), the program allows you to create indexes and triggers on the physical level corresponding to the tables of the database that is modeled. The foreign key migration feature makes schema development easier and more visual and also reduces the probability of errors in the integrity of the model. The program can create database schema objects directly in the database as well as create SQL scripts corresponding to the model and taking into account the settings specified by the user.Starting Price: $75 per year -
31
EdrawMax
Wondershare
Creating flow chart, mind map, org charts, network diagrams and floor plans with rich gallery of examples and templates. Edraw Max is an extremely powerful all-in-one diagramming tool that can serve all of your purposes. Whether you need to draw flowcharts, fishbone diagrams, UML diagrams or design floor plans, office layouts, you can find what you want in Edraw Max. Importantly, it is quite affordable. Templates let you go fast. Get inspired and start your design quickly by choosing from thousands of our professionally designed templates. Excellent file compatibility allows you to import Visio files or export your drawings to a variety of familiar file formats, such as Visio, PDF, Word, PPT, JPEG, Html, etc. Edraw Max allows you to create more than 280 sorts of diagrams effortlessly, from the technical diagrams to the attractive infographics, which leaves Visio far behind.Starting Price: $99 per user per year -
32
Eraser
Eraser
Eraser is a docs and diagrams platform for engineering teams. Eraser enables developers to create docs and diagrams at the speed of thought via a minimal UI, keyboard-driven flows, markdown, and diagram-as-code. Docs and diagrams can be saved on the Eraser web app as well as in your GitHub repository.Starting Price: $10 per user per month -
33
Luna Modeler
Ideamerit
Luna Modeler is an easy-to-use data modeling tool for your favorite databases. Design and visualize database structures, generate SQL scripts, and create interactive documentation. Perfect for both pros and beginners, Luna Modeler makes data modeling simple! Supported platforms: - Oracle Database - SQL Server - PostgreSQL - MySQL - MariaDB - SQLite Key features: - Database modeling and design - Reverse engineering from Oracle, SQL Server, PostgreSQL, MySQL, MariaDB - Import from SQLite files - Support for SSH/SSL/TLS connections - Generation of interactive HTML reports - Generation of SQL scripts - Project update - Generation of alter scripts for selected database platforms - Various themes and styles for reports - Multiple display modes - Support for sub-diagramsStarting Price: $99 -
34
Gliffy
Perforce
Gliffy is a versatile, cloud-based diagramming tool that enables users to create a wide range of visuals, including UML diagrams, flowcharts, wireframes, and more. Its intuitive drag-and-drop interface allows for seamless diagram creation directly within popular platforms like Confluence and Jira, enhancing collaboration and streamlining workflows. Gliffy supports real-time collaboration, enabling multiple users to edit and comment on diagrams simultaneously, which fosters efficient teamwork and ensures that all stakeholders are aligned. The platform offers a comprehensive library of shapes and templates, catering to various industries and use cases, from software engineering to business process modeling. Users can export diagrams in multiple formats, such as PDF, JPEG, PNG, and SVG, facilitating easy sharing and integration into other documents or presentations. Gliffy is SOC 2 Type II compliant.Starting Price: $7.99 per month -
35
Toad Data Modeler
Quest
Visualize database structures and better understand existing databases and relationships. Create high-quality logical and physical data models. Reverse engineer existing database structures to view them in a diagram. Generate detailed HTML, RTF or PDF reports. Create quality database structures or make changes to existing models automatically, and provide documentation on multiple platforms. Build complex logical and physical entity-relationship models, and easily reverse and forward engineer databases. Connect multiple databases natively and simultaneously, including Oracle, SAP, MySQL, SQL Server, PostgreSQL, DB2, Ingres, and Microsoft Access. Synchronize models with existing databases using Change Script Generations and Update Model features. Easily convert data structures from one database platform to another to support business migration initiatives. Easily generate detailed hyperlinked reports on existing database structures in multiple formats like HTML and PDF. -
36
ArgoUML
ArgoUML
ArgoUML is a free, open source UML modeling tool supporting all standard UML 1.4 diagrams. It is available on any Java platform and is translated into ten languages. ArgoUML allows users to create and edit various UML diagrams, including class, state, use case, activity, collaboration, deployment, and sequence diagrams. The software features a user-friendly interface divided into four panels: a project hierarchy, an editor for the selected diagram, a to-do list, and a detail panel for object selection. ArgoUML is distributed under the Eclipse Public License and is widely used worldwide, having been downloaded over 80,000 times. The platform offers user manuals, quick guides, and resources for both users and developers, and it encourages community involvement and contributions. ArgoUML’s open-source nature allows for bug reporting, feature requests, and active participation in its ongoing development.Starting Price: Free -
37
Altova UModel
Altova
Keep your favorite diagram views and UML tools at your fingertips to improve efficiency and productivity. Everything is customizable in the UML diagrams you create with UModel – size, position, color, typeface characteristics, and line styles. Use case diagrams are often considered separately from other software architecture diagrams because they capture project requirements and can define the scope of an application under development. It’s not likely any project will use all UML diagram types – software modeling allows flexibility in preferences and styles, and various tasks require different diagram types. Regardless which diagrams you create, UModel provides an unmatched visual interface and convenient features to make UML modeling easy and fun. Each diagram type has its own toolbar, so the screen won’t be crowded with irrelevant icons. You can turn toolbar text labels on or off and you can display or hide any toolbar.Starting Price: €129 one-time payment -
38
Ilograph
Ilograph
Ilograph is an interactive diagramming platform designed to help engineers and technical teams document, explain, and explore complex systems through dynamic architecture diagrams. Instead of relying on traditional static diagrams, Ilograph allows users to create interactive, zoomable diagrams that reveal different levels of detail and perspectives within a system. Authors define system resources and the relationships between them using a lightweight model-based approach often referred to as “diagrams-as-code,” which adds structure, consistency, and reusability to documentation. It automatically generates layouts and provides features such as autocomplete, built-in icon libraries, and customizable styles that simplify the process of creating and maintaining diagrams as systems evolve. Each diagram can include multiple perspectives that show how components interact in different contexts, such as data flows, infrastructure architecture, or business processes.Starting Price: $11.99 per month -
39
GibsonAI
GibsonAI
GibsonAI is an innovative AI-powered database engineer that revolutionizes the entire database lifecycle by automating everything from design to deployment. With a simple conversation in plain English, users can instantly generate complete database solutions including entity-relationship diagrams, optimized schemas, fully deployed hosted databases, live CRUD APIs, and comprehensive documentation—all without writing SQL or managing DevOps. The platform enables effortless modifications through natural language commands, eliminating manual migrations and downtime, making it ideal for developers seeking to accelerate development, startups launching scalable applications, and enterprise teams streamlining database engineering and maintenance.Starting Price: $20/month -
40
GoJS
Northwoods Software
GoJS is a JavaScript and TypeScript library for building interactive diagrams and graphs. From simple flowcharts and org charts to highly-specific industrial diagrams, SCADA and BPMN diagrams, medical diagrams such as genograms and outbreak modeling diagrams, and more. GoJS makes constructing graphs of complex nodes, links, and groups easy with customizable templates and layouts. GoJS offers advanced features for user interactivity such as drag-and-drop, copy-and-paste, in-place text editing, tooltips, context menus, automatic layouts, templates, data binding and models, transactional state and undo management, palettes, overviews, event handlers, commands, extensible tools for custom operations, and customizable animations. We maintain hundreds of sample diagrams, detailing different examples of interactivity, templates, and user logic for you to start from. We offer free developer-to-developer support during evaluation.Starting Price: 3,495 -
41
DB Designer
DB Designer
Online database design and modeling tool used and loved by more than 315,395 users including 50,000+ organizations, from leading government agencies to enterprise-class firms to smaller-sized companies and more than 150,000 freelancers, database admins, developers and engineers. Do not be deceived by our simple UI. Our web application is the most advanced and stable tool available in the market that gives you the power of visual database design online. Start from scratch just like creating a UML diagram or importing an existing database. Use our powerful features to save time and reduce errors. Share and collaborate with your team. When you are finished, generate an SQL script in one click. Our user interface may look simple but it is fully featured and powerful. Fast and ridiculously easy to use with every feature you can possibly need. Reduce errors and save time. Import an existing database or start from scratch. Generate an SQL script for every major database engine with one click.Starting Price: $6 per month -
42
objectiF RM
microTOOL
objectiF RM requirements engineering and management software offers comprehensive support for requirements elicitation, analysis, modeling, documentation and validation in line with IREB and Business Analysis standards. UML and SysML models help visualizing dependencies, relations, refinements, processes, stakeholders and goals. System architecture can be designed with block diagrams. Requirements specification documents can be generated in real time. Reviews and tests can be created to validate and verifiy all requirements. Backlogs offer hierarchical structures and dashboards deliver current information on the overall status of requirements. Teams collaborate on objectiF RM either on premise or in the cloud with integrated instant messageing and videocall options.Starting Price: €79/month/concurrent user -
43
DBeaver Community
DBeaver Corp.
DBeaver Community is a free, open-source database management tool recommended for personal projects. Manage and explore SQL databases like MySQL, MariaDB, PostgreSQL, SQLite, Apache Family, and more. Connect to popular SQL databases (PostgreSQL, MySQL, SQL Server, Oracle, SQLite, etc.) SQL editor to create queries with syntax highlighting and autocompletion AI assistant in SQL for building queries through natural language SSL/TLS support for encrypted connections SSH tunneling for secure remote access Proxy configuration to work with databases behind a corporate firewall Session Manager to terminate, disconnect, view and search for sessions Lock Manager to monitor and manage database locks Entity Relationship Diagrams to interactively explore and visualize database structure Query manager to view all executed queries, including execution time, duration, affected rows, and errors. Data editor to view, edit, and filter dataStarting Price: $11/month -
44
DiagramDeck
DiagramDeck
DiagramDeck is a browser-based collaborative diagramming tool that helps teams create and manage architecture diagrams, flowcharts, and workflows. It offers an intuitive drag-and-drop interface, real-time collaboration, and support for draw.io files. Teams can work together on diagrams, leave comments, and keep everything up to date without version conflicts. Diagrams can be easily exported in multiple formats for sharing and documentation. DiagramDeck is a simple and effective alternative to tools like Lucidchart, Visio, and draw.io.Starting Price: $0 -
45
AltonaLab
AltonaLab
AltonaLab IoT software has a powerful and easy-to-use CAD environment, suitable for the design of complicated diagrams. Please read the documentation and enjoy the exciting world of IoT software! The new connection is established when the user left-clicks with the mouse over the block’s input or output, without releasing the mouse button drag the mouse to the direction of another input/output, and then release the mouse button over it. Double click over the block or click with the right mouse button opens the Parameters editor where every parameter is presented with the separated row. The parameter Name is very important and is unique within the diagram! When the diagram is locked, the application uses this parameter to determine the diagram's size. This is a tricky way to hide all the blocks and contours which are outside the visible area (the area determined from parameters LockedCanvasHeight / LockedCanvasWidth) and only controls from a visible area to be shown.Starting Price: $50 one-time payment -
46
draw.io
JGraph
draw.io (also known as diagrams.net) is a powerful and flexible online tool for creating diagrams, flowcharts, and visual representations. It allows users to design a wide range of diagrams, from simple organizational charts to complex network architectures. The platform integrates seamlessly with popular cloud storage services such as Google Drive, OneDrive, and GitHub, providing easy access and collaboration capabilities. Draw.io prioritizes privacy and security, allowing users to store their diagrams locally or on the cloud, ensuring that data remains private and under the user's control. -
47
Zuken GENESYS
Zuken
GENESYS is Zuken's model-based systems engineering platform designed to manage and communicate product information effectively, enabling teams to focus on innovation. It supports the entire engineering process from initial concept to verification and validation within a single environment, capturing all relevant product information across different levels, from high-level use cases and system context to system and subsystem definitions, down to detailed design connections. GENESYS ensures every system design is coherent, consistent, and complete, providing feature-rich authoring capabilities with automatic diagram generation and rule-based formatting. It offers validation of logical consistency and behavior enabled by executable models and seamless integration with existing authoring tools. Built upon the Comprehensive Systems Definition Language (CSDL), which conforms to the Systems Modeling Language (SysML) standard, GENESYS provides semantic precision. -
48
ChartAI
ChartAI
ChartAI is the first AI-driven diagramming application that helps professionals make diagrams and charts in 2 seconds with AI. Simply input your diagram requirements, and let ChartAI do the rest. Within minutes, you'll have professional-looking diagrams or charts that are ready to use. Rapidly generates diagrams, allowing users to focus on analysis and presentation. An intuitive interface makes it easy for both novices and experts to use. Creates visually appealing diagrams suitable for various business contexts. Supports various diagram styles, including flowcharts, organizational charts, and data visualizations. Allows users to generate synthetic datasets for testing and development purposes. Users can sign in with their Google account, making it easy to access and manage their ChartAI account and data.Starting Price: Free -
49
DeZign for Databases
Datanamic
Visualize database structures to understand your database, create new databases or reverse-engineer existing databases to modify, document, analyze, and optimize. DeZign for Databases is an intuitive data modeling tool for developers and DBA's that can help you model, create and maintain databases. The software uses entity relationship diagrams (ERDs, data models) to graphically design databases and automatically generates the most popular databases (Oracle, MS SQL, MySQL, PostgreSQL, etc.) DeZign for Databases offers a sophisticated visual data modeling environment for database development that makes your database development process much easier. The tool reduces faults in database development and improves your productivity. You can visualize database structures to understand your database, create new databases or reverse-engineer existing databases to modify, document, analyze, and optimize.Starting Price: €19 per month -
50
Lekh Board
Lekh App
A collaborative whiteboard which recognizes your drawings and converts your rough drawings into regular shapes like circles, rectangles, curves and much more. The Lekh Board has best in class artificial intelligence to recognize your basic shapes and connection lines. You can draw naturally rough shapes and keep your focus on your ideas and concepts. Let Lekh Board convert your natural rough drawings into regular shapes and connections. Multiple users can open a single board and can draw together. Their drawings are synced to each other in real time. This provides a perfect tool for real time whiteboarding. Lekh Board has a rich shape library which provides a huge set of icons and shapes. Using the shape library you can draw block diagrams, UML, flowcharts, network diagrams, org charts etc.
