Astah Professional

Input—per 1M tokens

Output—per 1M tokens

Context—tokens

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About

Astah Professional is ranked #6 of 37 in diagram software on Inferse. It runs on API, Linux, macOS, Windows. There is no free plan. A free trial is offered.

Compared on diagram software

Free plan: Noastah.net
Paid from: $11.99/user/moastah.net
Diagram types: Class, object, communication, timing, component, deployment, composite structure, use case, sequence, activity, statemachine, package, requirement, mind map, ER, flowchart, CRUD, data flow, traceability map, Eriksson-Penker processastah.net
Real-time collaboration: Noastah.net
Export formats: JPEG, PNG, EMF, SVG, RTF, HTML, CSV, XML, CMOFastah.net
Import formats: Excel, XMLastah.net
Desktop app: Yesastah.net
Version history: Noastah.net

Facts

Purpose: Astah Professional creates UML, ER, flowchart, and data flow diagrams to visualize software design.astah.net · 3 Oct 2026
Data modeling: It can create ER diagrams from scratch or generate them by importing tables from an existing database, and supports SQL export and reverse engineering.astah.net · 3 Oct 2026
Modeling tools: Features include auto-layout, traceability maps, project comparison and merging, map view, and state transition paths and tables.astah.net · 3 Oct 2026
Code support: Astah supports reverse engineering of Java, C#, and C++ and code generation for PHP, SQL, and other languages.astah.net · 3 Oct 2026
Team collaboration: Team features include file locking, merging files, comparing diagrams and models, and importing other projects as read-only references.astah.net · 3 Oct 2026
API and plugins: The Astah API can retrieve model information and create or modify diagrams and models; scripts can access models through the in-app Script Editor.astah.net · 3 Oct 2026
Integrations: Listed plug-ins include Mermaid diagram import and export, Microsoft Office embedding, Redmine ticket association, and miro diagram import.astah.net · 3 Oct 2026
AI and data handling: AI Chat Copilot connects to an external AI service and the page says Astah does not store, analyze, or train on private user data; it requires a provider API key or endpoint.astah.net · 3 Oct 2026
AI limitation: The Copilot guide cautions that AI-generated results may be incomplete or inaccurate and advises users not to enter confidential or sensitive information unless permitted by organizational policy.astah.net · 3 Oct 2026
Platform requirements: Professional 12.0 lists Windows 11 x64, macOS 13 and later arm64, Ubuntu 24.04, and Rocky Linux 9.6 as supported platforms.astah.net · 3 Oct 2026
Trial: The pricing page offers a 20-day free trial for Astah Professional.astah.net · 3 Oct 2026
Support: A perpetual license includes the first year of support and maintenance; continuing support and upgrades from year two require a support renewal license.astah.net · 3 Oct 2026
Plugin support: The plug-in directory states that technical support is not provided for the listed plug-ins.astah.net · 3 Oct 2026
Audience: The product page describes Astah Professional as a tool for visualizing software design for individuals and teams.astah.net · 3 Oct 2026