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Premier Diagramming, Modeling Software & Tools | Astah
Astah offers powerful diagramming and modeling tools to help individuals and teams visualize ideas, create UML, flowcharts, ER diagrams, and more.
Create professional diagrams with ease
Astah is a user-friendly platform designed to help you create a wide range of diagrams and models, from UML and ER diagrams to mind maps and flowcharts. Whether you're a student, educator, or working on a software development team, Astah provides tools that make it easy to bring your ideas to life visually.
You can quickly build diagrams to clarify concepts, improve team communication, and document your designs. Astah supports both individual users and collaborative teams, making it a great fit for anyone needing to map out complex systems or processes. With features like plug-ins, academic licenses, and a free trial, it's accessible for all experience levels.
If you want to visualize, share, and refine your projects, Astah gives you the flexibility and power to do so efficiently. Its intuitive interface and variety of modeling options help you stay organized and communicate your vision clearly.
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Create UML diagrams from plain text with PlantUML. Quickly design, edit, and export various diagram types in formats like PNG, SVG, and LaTeX.
yWorks offers advanced tools for creating, editing, and analyzing diagrams and graphs, supporting real-time collaboration and multiple platforms.
Turn text and code into diagrams with Mermaid. Easily create flowcharts, charts, and more right from your browser. No design skills needed.
Create sequence diagrams from system models or Wireshark data. Visualize, model, and review complex protocols for networking and software design tasks.
GTKWave lets you view and analyze digital waveforms from simulation files on Unix, Windows, and Mac. Supports Verilog VCD and multiple other formats.
Simulate and design electronic circuits online with an easy-to-use schematic editor and interactive learning tools. No downloads or installation needed.
Create customizable spiral diagrams easily for math, art, or teaching with this simple online tool—no downloads or signup needed.
Run and automate C# scripts easily with CS-Script, a tool for executing ECMA-compliant C# code on .NET and Mono platforms. Supports rapid scripting.
Create flowcharts, network diagrams, UML, and more with this free online diagram maker. Import files from other tools and design visually with ease.
Create and display flowcharts in your browser using simple text-based definitions. Easily visualize processes or ideas without extra software.
Create, edit, and share diagrams for Confluence and Jira teams. Draw.io makes building flowcharts, mind maps, and more easy and collaborative for everyone.
Graphviz lets you create and visualize complex graphs and networks as diagrams. Open source tool for visualizing structural relationships in data.
Create flowcharts, org charts, floor plans, and over 280 types of diagrams online with EdrawMax—featuring templates and easy-to-use design tools.
devtools offers tools and functions to help R developers create, test, and manage R packages more easily, streamlining the entire development process.
Graphviz offers open source software for creating diagrams and visualizing complex graphs, making it easy to represent networks and relationships.
Popplet helps you easily create and share mind maps, diagrams, and visual notes for brainstorming, organizing ideas, or collaborating with others.
Visualize, edit, and analyze JSON, CSV, YAML, and XML data with interactive graphs and an easy-to-use online editor. Supports multiple data formats.
Kroki lets you create diagrams from text using a unified API, supporting many formats like PlantUML, Mermaid, GraphViz, and more for easy visualization.
PathVisio lets you draw, edit, and share biological pathway diagrams. Find downloads, plugins, and tutorials to help you get started with pathway editing.
JointJS is a JavaScript library for building interactive diagrams and visual editors, helping developers create powerful UI tools and no-code apps.
JFlex helps you quickly create fast, Unicode-aware lexical analyzers for Java projects. Download, learn, and generate your own Java scanners with ease.
Create, edit, and share diagrams online with AI-powered tools for visualizing processes, systems, and ideas. Collaborate easily with your team in real time.
Create, customize, and share mind maps online with MindMeister. Collaborate in real time, add images and notes, and organize ideas on any device.
Gliffy helps you turn complex ideas into clear diagrams quickly, with AI-powered tools and real-time collaboration for teams and businesses.
Create interactive charts, maps, and tables easily with Datawrapper—no coding needed. Visualize your data and share it online or export for reports.
Excalidraw is an online collaborative whiteboard where you can sketch diagrams with a hand-drawn look, perfect for brainstorming and teamwork.
Overflow helps design teams create interactive user flow diagrams and engaging design presentations for better collaboration and feedback.
Create clear Drakon flowcharts and mind maps to organize ideas, visualize processes, and design algorithms easily with this intuitive diagram editor.
Easily create, edit, and share timelines for projects, school, fiction, legal cases, and more—using AI or manual tools, all in your web browser.
Design charts, infographics, and business graphics online in seconds. Vizzlo helps you create professional visuals for presentations and reports quickly and easily.
Worldwide Astah.net Alternatives
Obeo offers collaborative visual software tools for architects and engineers to design, model, and transform complex systems with customizable solutions.
Create sequence diagrams quickly and easily with this free online tool—no software download needed, just type your scenario and see your diagram instantly.
Create, edit, and share diagrams using simple ASCII art right in your browser. Draw boxes, lines, and shapes easily—no downloads or sign-up needed.
Create, edit, and visualize AWS and Azure cloud architecture diagrams instantly. Connect your live environment and optimize your cloud setup easily.
Create diagrams and flowcharts from text using Mermaid. Easily visualize processes, workflows, and ideas directly in your browser or documentation.
Create and share digital timing diagrams in your browser with WaveDrom—no software install needed. Perfect for engineers and students designing circuits.
Visualize regular expressions as easy-to-read diagrams to better understand and debug your regex patterns. Free, online, and simple to use.
Scalameta is a toolkit for reading, analyzing, transforming, and generating Scala code, with APIs and tools for developers and IDE integration.
DYNO Mapper lets you create interactive visual sitemaps, organize website content, and plan site structure for better clarity and user experience.
Create flexible concept maps to organize ideas and digital resources for teaching, learning, and research with this easy-to-use diagram tool.
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