Astah Professional

Windows · Mac · Linux · API

Freedom report

Two barsScore 5.1

Free tierNo free tier on record
Open codeNo open-source code on record
Runs widely3 of 6 device platforms
DocumentedPlans, terms and facts published

Astah Professional is ranked #29 of 37 in diagram software on Freedom251. It runs on API, Linux, macOS, Windows. There is no free plan. A free trial is offered.

Astah Professional plans and pricing

All plans

Astah Professional Individual Perpetual License Not published The pricing page shows “Starting at $11.99” and lists perpetual licensing; it does not show a single fixed price in the opened page text. 1 year of support included · support renewal from year 2 is $80 / €62 astah.net · 3 Oct 2026

Compared on diagram software

Free plan: No
Paid from: $11.99/user/mo
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 process
Real-time collaboration: No
Export formats: JPEG, PNG, EMF, SVG, RTF, HTML, CSV, XML, CMOF
Import formats: Excel, XML
Desktop app: Yes
Version history: No

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The record

Purpose: Astah Professional creates UML, ER, flowchart, and data flow diagrams to visualize software design.
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.
Modeling tools: Features include auto-layout, traceability maps, project comparison and merging, map view, and state transition paths and tables.
Code support: Astah supports reverse engineering of Java, C#, and C++ and code generation for PHP, SQL, and other languages.
Team collaboration: Team features include file locking, merging files, comparing diagrams and models, and importing other projects as read-only references.
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.
Integrations: Listed plug-ins include Mermaid diagram import and export, Microsoft Office embedding, Redmine ticket association, and miro diagram import.
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.
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.
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.
Trial: The pricing page offers a 20-day free trial for Astah Professional.
Support: A perpetual license includes the first year of support and maintenance; continuing support and upgrades from year two require a support renewal license.
Plugin support: The plug-in directory states that technical support is not provided for the listed plug-ins.
Audience: The product page describes Astah Professional as a tool for visualizing software design for individuals and teams.

Where it ranks on Freedom251

Best Diagram Software in 2026#29 of 37
Best UML Modeling Software in 2026#17 of 24

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Sources

astah.net/products/astah-professional/· checked 3 Oct 2026
astah.net/products/plugins-integrations/· checked 3 Oct 2026
astah.net/support/ai-chat-copilot/· checked 3 Oct 2026
astah.net/support/astah-pro/system-requirements/· checked 3 Oct 2026
astah.net/pricing/· checked 3 Oct 2026
astah.net/value-support-maintenance/· checked 3 Oct 2026